Livingston County Schools 4th Grade Unit 3 Geometry/Equivalent Fractions Math Unit Overview Students describe, analyze, compare, and classify 2-D shapes. Through building drawing and analyzing 2-D shapes, students deepen their understanding of properties of 2-D objects. They use knowledge of 2-D shapes and angles to begin measuring angles, decomposing angles and solve problems involving symmetry. Students use 2-D shapes to extend previous understandings about how fractions are built from unit fractions, composing fractions from unit fractions and decomposing fractions into unit fractions. They explore the relationship between multiplication, perimeter, and area when dealing with rectangles. Length of unit: ____5 weeks______ KY Core Academic Standard 4.OA.1 Interpret a multiplication equation as a comparison, e.g. , interpret 35 = 5 x 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations Learning Target I can use multiplication strategies I can interpret a multiplication equation as a comparison (e.g. 18 = 3 times as many as 6. K R X S P Critical Vocabulary Fact family X Texts/Resources/Activities edHelper U-tube Discovery Education Flowcabulary www.superteacher.com Study Island Brainpop Teachers Domain Coach Crosswalk Lesson 3 I can represent verbal statements of multiplicative comparisons as multiplication equations 4.OA.2. Multiply or divide to I can multiply or divide to solve solve word problems word problems. involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison I can describe multiplicative comparison. I can describe additive comparison I can determine appropriate operation and solve word problems involving multiplicative comparison. I can determine and use a variety of representations to model a problem involving multiplicative comparison. I can distinguish between multiplicative comparison and additive comparison (repeated addition). 4.G.1 Draw points, lines, line I can draw points, lines, line segments, rays, angles (right, segments, rays, angles (right, acute, acute, obtuse), and perpendicular and parallel lines. Identify these in obtuse), and perpendicular and parallel lines. two-dimensional figures. X X Coach Crosswalk Lesson 3 X X X X X X Angle Ray Vertex Endpoint Degree Coach Crosswalk Lessons 37, 38 KCCT Coach Lesson 23 I can analyze two-dimensional figures to identify points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines 4.G.2 Classify twodimensional 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. X I can identify parallel or perpendicular lines in two dimensional figures. X I can recognize acute, obtuse, and right angles. X I can identify right triangles. X Perpendicular line Parallel line Polygon Triangle Quadrilateral Pentagon Octagon Hexagon Sides Perpendicular lines Parallel lines TwoDimensional Figure Angle Acute Obtuse Right I can classify two-dimensional figures based on parallel or perpendicular lines and size of angles. X Parallel lines Perpendicular I can classify triangles as right triangles or not right. X Right triangle Math Connects Lesson 9-2 Coach Crosswalk Lesson 38 Ladders to Success Level D Lesson 7 Math Connects Lesson 9-4 and 9-5 Ladders to Success Level D Lesson 7 Math Connects Lesson 9-2 4.G.3 Recognize a line of symmetry for a twodimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify linesymmetric figures and draw lines of symmetry 4.MD.5ab Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement: a. An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns I can recognize lines of symmetry for a two-dimensional figure. X I can recognize a line of symmetry as a line across a figure that when folded along creates matching parts. I can draw lines of symmetry for two-dimensional figures. X Coach Crosswalk Lesson 39 KCCT Coach Lesson 27 X I can identify line-symmetric figures. I can define angle. X Coach Crosswalk Lesson 39 KCCT Coach Lesson 25 Coach Crosswalk Lesson 39 X Line of Symmetry Protractor Degrees Coach Crosswalk Lesson 39 through 1/360 of a circle is called a “one-degree angle,” and can be used to measure angles. b. An angle that turns through n one-degree angles is said to have an angle measure of n degrees. 4.MD.6 Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure I can recognize a circle as a geometric figure that has 360 degrees. I can recognize and identify an angle as a geometric shape formed from 2 rays with a common endpoint. I can recognize that an angle is a fraction of a 360 degree circle. I can explain the angle measurement in terms of degrees. I can compare angles to circles with the angles point at the center of the circle to determine the measure of the angle. I can calculate angle measurement using the 360 degrees of a circle I can recognize that angles are measured in degrees (°). X I can read a protractor. I can determine which scale on the protractor to use, based on the direction the angle is open. X X circle X X X X X X I can determine the kind of angle based on the specified measure to decide reasonableness of the sketch. I can measure angles in wholenumber degrees using a protractor. I can sketch angles of specified measure. Spiraled Standards: 4.NF.3a, 4.NF.3b, 4.MD.3, 4.MD.7 X X X HOT Questions: