Crosswalk (Math, K-8) 2005 NYS Core Curriculum → 2010 Common Core Geometry Concept / Skill 2005 NYS Core Curriculum Shapes (2-D): 1.G.2 - Recognize, name, describe, create, Identification & Classification 1.G.5 2.G.2 - 3.G.1 - 4.G.1 - sort, and compare two-dimensional and three-dimensional shapes Recognize geometric shapes and structures in the environment Identify and appropriately name twodimensional shapes: circle, square, rectangle, and triangle (both regular and irregular) Define and use correct terminology when referring to shapes (circle, triangle, square, rectangle, rhombus, trapezoid, and hexagon) Identify and name polygons, recognizing that their names are related to the number of sides and angles (triangle, quadrilateral, pentagon, hexagon, and octagon) Shapes (2-D): K.G.1 - Describe characteristics and Characteristics relationships of geometric objects 2.G.3 - Compose (put together) and decompose (break apart) twodimensional shapes 4.G.1 - Identify and name polygons, recognizing that their names are related to the number of sides and angles (triangle, quadrilateral, pentagon, hexagon, and octagon) 2010 Common Core K.G.1 - Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind, and next to. K.G.2 - Correctly name shapes regardless of their orientations or overall size (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres). K.G.3 - Identify shapes as two-dimensional (lying in a plane, “flat”) or three-dimensional (“solid”) (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres). 2.G.1 - Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces.5 Identify triangles, quadrilaterals, pentagons, hexagons, and cubes. 3.G.1 - Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories. 4.G.2 - Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles. 5.G.3 - Understand that attributes belonging to a category of twodimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles. 5.G.4 - Classify two-dimensional figures in a hierarchy based on properties. K.G.5 - Model shapes in the world by building shapes from components (e.g., sticks and clay balls) and drawing shapes. K.G.6 - Compose simple shapes to form larger shapes. For example, “Can you join these two triangles with full sides touching to make a rectangle?” 1.G.1 - Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes. 1.G.2 - Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or threedimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.4 2.G.1 - Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces.5 Identify triangles, quadrilaterals, pentagons, hexagons, and cubes. Shapes (2-D): PK.G.1- Match shapes, first with same size Similarity & Congruence Brian Cohen K.G.2 and orientation, then with different sizes and orientation 1.G.1 - Match shapes and parts of shapes to K.G.4 justify congruency page 1 of 9 Correctly name shapes regardless of their orientations or overall size (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres). Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to 7/18/10 2.G.1 - Experiment with slides, flips, and turns to compare two-dimensional shapes 3.G.2 - Identify congruent and similar figures describe their similarities, differences, parts (e.g., number of sides and vertices/“corners”) and other attributes (e.g., having sides of equal length). 8.G.2 - Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them. Shapes (2-D): 4.G.3 - Find perimeter of polygons by adding 3.MD.8 -Solve real world and mathematical problems involving perimeters Perimeter sides 5.G.1 - Calculate the perimeter of regular and irregular polygons Shapes (2-D): 4.G.4 - Find the area of a rectangle by Area Brian Cohen of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters. 4.MD.3 -Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor. counting the number of squares needed to cover the rectangle 6.G.2 - Determine the area of triangles and quadrilaterals (squares, rectangles, rhombi, and trapezoids) and develop formulas 6.G.3 - Use a variety of strategies to find the area of regular and irregular polygons 3.MD.5 -Recognize area as an attribute of plane figures and understand concepts of area measurement. a. A square with side length 1 unit, called “a unit square,” is said to have “one square unit” of area, and can be used to measure area. b. A plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units. 3.MD.6 - Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units). 3.MD.7 -Relate area to the operations of multiplication and addition. a. Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths. b. Multiply side lengths to find areas of rectangles with wholenumber side lengths in the context of solving real world and mathematical problems, and represent whole-number products as rectangular areas in mathematical reasoning. c. Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths a and b + c is the sum of a × b and a × c. Use area models to represent the distributive property in mathematical reasoning. d. Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real world problems. 4.MD.3 -Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor. 5.NF.4 - Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction. b. Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas. 6.G.1 - Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; apply these page 2 of 9 7/18/10 techniques in the context of solving real-world and mathematical problems. 7.G.6 - Solve real-world and mathematical problems involving area, volume and surface area of two- and three-dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms. Shapes (2-D): 4.N.8 - Recognize and generate equivalent Fractions of a whole fractions (halves, fourths, thirds, fifths, sixths, and tenths) using manipulatives, visual models, and illustrations Shapes (2-D): 6.G.5 - Identify radius, diameter, chords and Circles (parts) circumference of a circle, using the appropriate formula 6.G.8 - Calculate the area of a sector of a circle, given the measure of a central angle and the radius of the circle 6.G.9 - Understand the relationship between the circumference and the diameter of a circle 7.G.1 - Calculate the radius or diameter, given the circumference or area of a circle Shapes (3-D): PK.G.2- Informally play with solids (e.g., Identification building blocks) 1.G.2 - Recognize, name, describe, create, sort, and compare two-dimensional and three-dimensional shapes 1.G.5 - Recognize geometric shapes and structures in the environment 3.G.3 - Name, describe, compare, and sort three-dimensional shapes: cube, cylinder, sphere, prism, and cone Shapes (3-D): 3.G.4 - Identify the faces on a threeCharacteristics Brian Cohen Not directly addressed central angles of a circle 6.G.6 - Understand the relationship between the diameter and radius of a circle Shapes (2-D): 6.G.7 - Determine the area and Circles (area & circumference) 1.G.3 - Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares. 2.G.2 - Partition a rectangle into rows and columns of same-size squares and count to find the total number of them. 2.G.3 - Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. 3.G.2 - Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. For example, partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape. dimensional shape as twodimensional shapes 4.G.5 - Define and identify vertices, faces, and edges of three-dimensional 7.G.4 - Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle. K.G.1 - Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind, and next to. K.G.2 - Correctly name shapes regardless of their orientations or overall size (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres). K.G.3 - Identify shapes as two-dimensional (lying in a plane, “flat”) or three-dimensional (“solid”) (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres). 2.G.1 - Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces.5 Identify triangles, quadrilaterals, pentagons, hexagons, and cubes. K.G.5 - Model shapes in the world by building shapes from components (e.g., sticks and clay balls) and drawing shapes. 7.G.3 - Describe the two-dimensional figures that result from slicing three-dimensional figures, as in plane sections of right rectangular prisms and right rectangular pyramids. page 3 of 9 7/18/10 shapes 7.G.3 - Identify the two-dimensional shapes that make up the faces and bases of three-dimensional shapes (prisms, cylinders, cones, and pyramids) Shapes (3-D): 6.G.4 - Determine the volume of rectangular Volume prisms by counting cubes and develop the formula 6.M.1 - Measure capacity and calculate volume of a rectangular prism 7.G.2 - Calculate the volume of prisms and cylinders, using a given formula and a calculator 4.MD.2 -Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit. Represent measurement quantities using diagrams such as number line diagrams that feature a measurement scale. 5.MD.3 -Recognize volume as an attribute of solid figures and understand concepts of volume measurement. a. A cube with side length 1 unit, called a “unit cube,” is said to have “one cubic unit” of volume, and can be used to measure volume. b. A solid figure which can be packed without gaps or overlaps using n unit cubes is said to have a volume of n cubic units. 5.MD.4 -Measure volumes by counting unit cubes, using cubic cm, cubic in, cubic ft, and improvised units. 5.MD.5 -Relate volume to the operations of multiplication and addition and solve real world and mathematical problems involving volume. a. Find the volume of a right rectangular prism with wholenumber side lengths by packing it with unit cubes, and show that the volume is the same as would be found by multiplying the edge lengths, equivalently by multiplying the height by the area of the base. Represent threefold wholenumber products as volumes, e.g., to represent the associative property of multiplication. b. Apply the formulas V = l × w × h and V = b × h for rectangular prisms to find volumes of right rectangular prisms with whole-number edge lengths in the context of solving real world and mathematical problems. c. Recognize volume as additive. Find volumes of solid figures composed of two non-overlapping right rectangular prisms by adding the volumes of the non-overlapping parts, applying this technique to solve real world problems. 6.G.2 - Find the volume of a right rectangular prism with fractional edge lengths by packing it with unit cubes of the appropriate unit fraction edge lengths, and show that the volume is the same as would be found by multiplying the edge lengths of the prism. Apply the formulas V = l w h and V = b h to find volumes of right rectangular prisms with fractional edge lengths in the context of solving real-world and mathematical problems. 7.G.6 - Solve real-world and mathematical problems involving area, volume and surface area of two- and three-dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms. 8.G.9 - Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve real-world and mathematical problems. Shapes (3-D): 7.G.4 - Determine the surface area of prisms 6.G.4 - Represent three-dimensional figures using nets made up of Surface Area Brian Cohen and cylinders, using a calculator and a variety of methods 7.M.11 - Estimate surface area rectangles and triangles, and use the nets to find the surface area of these figures. Apply these techniques in the context of solving real-world and mathematical problems. 7.G.6 - Solve real-world and mathematical problems involving area, volume and surface area of two- and three-dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right page 4 of 9 7/18/10 prisms. Geometric Relationships: Positions Geometric Relationships: Properties Geometric Relationships: Lines & Angles K.G.5 - Understand and use ideas such as over, under, above, below, on, beside, next to, and between K.G.1 - Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind, and next to. PK.S.4- Describe the attributes of objects K.G.2 - Sort groups of objects by size and size order (increasing and decreasing) 2.G.4 - Group objects by like properties Not directly addressed 4.G.2 - Identify points and line segments when drawing a plane figure 4.G.6 - Draw and identify intersecting, perpendicular, and parallel lines 4.G.7 - Identify points and rays when drawing angles 4.G.8 - Classify angles as acute, obtuse, right, and straight 4.G.1 - Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures. 8.G.1 - Identify pairs of vertical angles as 7.G.5 - Use facts about supplementary, complementary, vertical, and congruent adjacent angles in a multi-step problem to write and solve simple 8.G.2 - Identify pairs of supplementary and equations for an unknown angle in a figure. complementary angles 8.G.5 - Use informal arguments to establish facts about the angle sum 8.G.3 - Calculate the missing angle in a and exterior angle of triangles, about the angles created when supplementary or complementary parallel lines are cut by a transversal, and the angle-angle pair criterion for similarity of triangles. For example, arrange three 8.G.4 - Determine angle pair relationships copies of the same triangle so that the sum of the three angles when given two parallel lines cut by a appears to form a line, and give an argument in terms of transversal transversals why this is so. 8.G.5 - Calculate the missing angle measurements when given two parallel lines cut by a transversal 8.G.6 - Calculate the missing angle measurements when given two intersecting lines and an angle Geometric Relationships: Constructions Geometric Relationships: Quadrilaterals Brian Cohen 8.G.0 Construct the following, using a 7.G.2 straight edge and compass: segment congruent to a segment, angle congruent to an angle, perpendicular bisector, & angle bisector 5.G.4 - Classify quadrilaterals by properties of their angles and sides 5.G.5 - Know that the sum of the interior angles of a quadrilateral is 360 degrees 7.G.7 - Find a missing angle when given angles of a quadrilateral Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle. 3.G.1 - Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories. 4.G.2 - Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles. 5.G.3 - Understand that attributes belonging to a category of twodimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles. 5.G.4 - Classify two-dimensional figures in a hierarchy based on properties. page 5 of 9 7/18/10 Geometric Relationships: Triangles (angles) Geometric Relationships: Triangles (similarity & congruence) Geometric Relationships: Triangles (Pythagorean Theorem) Geometric Relationships: Scale 5.G.6 - Classify triangles by properties of their angles and sides 5.G.7 - Know that the sum of the interior angles of a triangle is 180 degrees 5.G.8 - Find a missing angle when given two angles of a triangle 5.G.2 - Identify pairs of similar triangles 7.G.1 - Solve problems involving scale drawings of geometric figures, 5.G.3 - Identify the ratio of corresponding including computing actual lengths and areas from a scale sides of similar triangles drawing and reproducing a scale drawing at a different scale. 5.G.9 - Identify pairs of congruent triangles Appears in the following high school conceptual category: 5.G.10 - Identify corresponding parts of Geometry congruent triangles 6.G.1 - Calculate the length of corresponding sides of similar triangles, using proportional reasoning 7.G.5 - Identify the right angle, hypotenuse, 8.G.6 - Explain a proof of the Pythagorean Theorem and its converse. and legs of a right triangle 8.G.7 - Apply the Pythagorean Theorem to determine unknown side 7.G.6 - Explore the relationship between the lengths in right triangles in real-world and mathematical problems lengths of the three sides of a right in two and three dimensions. triangle to develop the Pythagorean 8.G.8 - Apply the Pythagorean Theorem to find the distance between two Theorem points in a coordinate system. 7.G.8 - Use the Pythagorean Theorem to determine the unknown length of a side of a right triangle 7.G.9 - Determine whether a given triangle is a right triangle by applying the Pythagorean Theorem and using a calculator 7.R.9 - Use mathematics to show and 7.G.1 - Solve problems involving scale drawings of geometric figures, understand physical phenomena including computing actual lengths and areas from a scale (e.g., make and interpret scale drawing and reproducing a scale drawing at a different scale. drawings of figures or scale models of objects) 7.M.1 - Calculate distance using a map scale 8.R.9 - Use mathematics to show and understand physical phenomena (e.g., make and interpret scale drawings of figures or scale models of objects) Transformational K.G.3 - Explore vertical and horizontal orientation of objects Geometry: Brian Cohen 3.G.1 - Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories. 4.G.2 - Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles. 5.G.3 - Understand that attributes belonging to a category of twodimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles. 5.G.4 - Classify two-dimensional figures in a hierarchy based on properties. 8.G.5 - Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles. For example, arrange three copies of the same triangle so that the sum of the three angles appears to form a line, and give an argument in terms of transversals why this is so. K.G.2 - Correctly name shapes regardless of their orientations or overall size (squares, circles, triangles, rectangles, hexagons, cubes, page 6 of 9 7/18/10 Orientation & Informal Transformations 1.G.3 - Experiment with slides, flips, and turns of two-dimensional shapes 2.G.5 - Explore and predict the outcome of slides, flips, and turns of twodimensional shapes cones, cylinders, and spheres). K.G.4 - Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/“corners”) and other attributes (e.g., having sides of equal length). Transformational K.G.4 - Manipulate two- and threedimensional shapes to explore Geometry: Symmetry 4.G.3 - Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the symmetry line into matching parts. Identify line-symmetric figures and draw 1.G.4 - Identify symmetry in two-dimensional lines of symmetry. shapes 2.G.6 - Explore line symmetry 3.G.5 - Identify and construct lines of symmetry 5.G.11 - Identify and draw lines of symmetry of basic geometric shapes Transformational 8.G.7 - Describe and identify transformations 8.G.1 - Verify experimentally the properties of rotations, reflections, and in the plane, using proper function translations: Geometry: Transformations notation (rotations, reflections, translations, and dilations) 8.G.8 - Draw the image of a figure under rotations of 90 and 180 degrees 8.G.9 - Draw the image of a figure under a reflection over a given line 8.G.10 - Draw the image of a figure under a translation 8.G.11 - Draw the image of a figure under a dilation 8.G.12 - Identify the properties preserved and not preserved under a reflection, rotation, translation, and dilation a. Lines are taken to lines, and line segments to line segments of the same length. b. Angles are taken to angles of the same measure. c. Parallel lines are taken to parallel lines. 8.G.2 - Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them. 8.G.3 - Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates. 8.G.4 - Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them. Coordinate Geometry: 5.G.12 - Identify and plot points in the first quadrant 5.OA.3 - Generate two numerical patterns using two given rules. Identify apparent relationships between corresponding terms. Form ordered pairs consisting of corresponding terms from the two patterns, and graph the ordered pairs on a coordinate plane. For example, given the rule “Add 3” and the starting number 0, and given the rule “Add 6” and the starting number 0, generate terms in the resulting sequences, and observe that the terms in one sequence are twice the corresponding terms in the other sequence. Explain informally why this is so 5.G.1 - Use a pair of perpendicular number lines, called axes, to define a coordinate system, with the intersection of the lines (the origin) arranged to coincide with the 0 on each line and a given point in the plane located by using an ordered pair of numbers, called its coordinates. Understand that the first number indicates how far to travel from the origin in the direction of one axis, and the second number indicates how far to travel in the direction of the second axis, with the convention that the names of the two axes and the coordinates correspond (e.g., x-axis and x-coordinate, yaxis and y-coordinate). 5.G.2 - Represent real world and mathematical problems by graphing points in the first quadrant of the coordinate plane, and interpret coordinate values of points in the context of the situation. 6.RP.3 - Use ratio and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, Plotting Points Brian Cohen page 7 of 9 7/18/10 or equations. a. Make tables of equivalent ratios relating quantities with whole-number measurements, find missing values in the tables, and plot the pairs of values on the coordinate plane. Use tables to compare ratios. Coordinate Geometry: Area & Perimeter Coordinate Geometry: Graphing Inequalities Coordinate Geometry: Brian Cohen 5.G.13 - Plot points to form basic geometric shapes (identify and classify) 6.G.3 - Draw polygons in the coordinate plane given coordinates for the vertices; use coordinates to find the length of a side joining points with the same first coordinate or the same second coordinate. Apply these techniques in the context of solving real-world and mathematical problems. 6.G.10 - Identify and plot points in all four quadrants 6.NS.6 - Understand a rational number as a point on the number line. Extend number line diagrams and coordinate axes familiar from previous grades to represent points on the line and in the plane with negative number coordinates. b. Understand signs of numbers in ordered pairs as indicating locations in quadrants of the coordinate plane; recognize that when two ordered pairs differ only by signs, the locations of the points are related by reflections across one or both axes. c. Find and position integers and other rational numbers on a horizontal or vertical number line diagram; find and position pairs of integers and other rational numbers on a coordinate plane. 6.NS.8 - Solve real-world and mathematical problems by graphing points in all four quadrants of the coordinate plane. Include use of coordinates and absolute value to find distances between points with the same first coordinate or the same second coordinate. 5.G.14 - Calculate perimeter of basic Not directly addressed geometric shapes drawn on a coordinate plane (rectangles and shapes composed of rectangles having sides with integer lengths and parallel to the axes) 6.G.11 - Calculate the area of basic polygons drawn on a coordinate plane (rectangles and shapes composed of rectangles having sides with integer lengths) 7.G.10 - Graph the solution set of an inequality (positive coefficients only) on a number line (See 7.A.5) 8.G.19 - Graph the solution set of an inequality on a number line 6.EE.8 - Write an inequality of the form x > c or x < c to represent a constraint or condition in a real-world or mathematical problem. Recognize that inequalities of the form x > c or x < c have infinitely many solutions; represent solutions of such inequalities on number line diagrams. 7.EE.4 - Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities. b. Solve word problems leading to inequalities of the form px + q > r or px + q < r, where p, q, and r are specific rational numbers. Graph the solution set of the inequality and interpret it in the context of the problem. For example: As a salesperson, you are paid $50 per week plus $3 per sale. This week you want your pay to be at least $100. Write an inequality for the number of sales you need to make, and describe the solutions. 8.G.13 - Determine the slope of a line from a graph and explain the meaning of slope as a constant rate of change 8.EE.6 - Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through page 8 of 9 7/18/10 Graphing Linear Equations 8.G.14 - Determine the y-intercept of a line the origin and the equation y = mx + b for a line intercepting the from a graph and be able to explain vertical axis at b. the y-intercept 8.EE.8 - Analyze and solve pairs of simultaneous linear equations. 8.G.15 - Graph a line using a table of values a. Understand that solutions to a system of two linear 8.G.16 - Determine the equation of a line equations in two variables correspond to points of given the slope and the y-intercept intersection of their graphs, because points of intersection 8.G.17 - Graph a line from an equation in satisfy both equations simultaneously. slope-intercept form (y = mx + b) b. Solve systems of two linear equations in two variables 8.G.18 - Solve systems of equations algebraically, and estimate solutions by graphing the graphically (only linear, integral equations. Solve simple cases by inspection. For example, solutions, y = mx + b format, no 3x + 2y = 5 and 3x + 2y = 6 have no solution because 3x + vertical/horizontal lines) 2y cannot simultaneously be 5 and 6. 8.G.20 - Distinguish between linear and c. Solve real-world and mathematical problems leading to two nonlinear equations ax2 + bx + c; a=1 linear equations in two variables. For example, given (only graphically) coordinates for two pairs of points, determine whether the line through the first pair of points intersects the line through the second pair. 8.F.3 - Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear. For example, the function A = s2 giving the area of a square as a function of its side length is not linear because its graph contains the points (1,1), (2,4) and (3,9), which are not on a straight line. 8.F.4 - Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values. Coordinate Geometry: 8.G.21 - Recognize the characteristics of quadratics in tables, graphs, equations, and situations Quadratics Brian Cohen Appears in the following conceptual categories of the Mathematics Standards for High School: Number and Quantity Algebra Functions Statistics and Probability page 9 of 9 7/18/10