Essential MATH Skills Alignment – Math Standards Content Source: 2013-2014 Iredell-Statesville Schools– Format Design: Grade: Seventh – Ratios and Proportions Math Standard: 7.RP.1 Math Standard: 7.RP.2 Compute unit rates associated with ratios of fractions, Recognize and represent proportional relationships including ratios of lengths, area and other quantities between quantities. measured in like or different units. a. Decide whether two quantities are in a proportional OASIS, LLC The academic vocabulary or content language is listed under each standard. There are 30-40 words in bold that should be taught to mastery. Math Standard: 7.RP.3 Use proportional relationships to solve multistep ratio and percent problems. relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin. b. Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships. c. Represent proportional relationships by equations. 7.RP.1 Essential Skills and Concepts: 1. Calculate unit rates using ratios of fractions (complex fractions) write a ratio using fractions and label the units solve unit rates using division apply the multiplicative inverse to find the unit rate d. Explain what a point (x, y) on the graph of a proportional relationship means in terms of the situation, with special attention to the points (0, 0) and (1, r) where r is the unit rate. 7.RP.2 Essential Skills and Concepts: 1. Determine if two quantities are proportional use a table of proportional values to determine the rate of change graph coordinates from a table to show rate of change write a ratio from a table or a graph 2. Identify the constant of proportionality (unit rate) explain how the ratios are equivalent explain the proportional relationship between x and y showing that as x increases, y increases determine if the quantities are proportional if they form a straight line 7.RP.3 Essential Skills and Concepts: 1. Use proportions to solve real world problems. write a proportion with complex fractions from a variety of word problems solve the proportion using a variety of methods. 2. Solve percent problems in real world situations solve tax problems solve problems that include gratuity and commission solve problems that include mark-ups and mark-downs 3. Solve percent of change find the difference between the original and the new value set-up and solve a ratio of change out of original express the percent mark-up or mark-down as a percent of change. 4. Solve percent of error problems find the absolute value of the difference between the result and the accepted value divide by the accepted value 5. Solve interest problems identify the missing component using the given formula (interest, principal, rate, or time) change rate from percent to a decimal Essential MATH Skills Alignment – Math Standards Content Source: 2013-2014 Iredell-Statesville Schools– Format Design: Grade: Seventh – Ratios and Proportions 7.RP.1 Mathematical Language: ratio, unit rate, 7.RP.2 Mathematical Language: constant of equivalent ratio, complex fractions, reciprocal, proportionality, proportions, cross products, multiplicative inverse coefficient, ordered pair OASIS, LLC The academic vocabulary or content language is listed under each standard. There are 30-40 words in bold that should be taught to mastery. 7.RP.3 Mathematical Language: percent of change (increase/decrease), percent of error, interest, simple interest, principal, markup, markdown, tax, gratuity, tip, commission, accepted value, sales tax Essential MATH Skills Alignment – Math Standards Content Source: 2013-2014 Iredell-Statesville Schools– Format Design: Grade: Seventh – The Number System Math Standard: 7.NS.1 Math Standard: 7.NS.2 Apply and extend previous understandings of addition Apply and extend previous understandings of and subtraction to add and subtract rational numbers; multiplication and division and of fractions to multiply represent addition and subtraction on a horizontal or and divide rational numbers. vertical number line diagram. a. Understand that multiplication is extended from a. Describe situations in which opposite quantities combine to make 0. b. Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real world contexts. c. Understand subtraction of rational numbers as adding the additive inverse, p – q = p + (–q). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world contexts. d. Apply properties of operations as strategies to add and subtract rational numbers. 7.NS.1 Essential Skills and Concepts: 1. Interpret sums, differences, products and quotients of rational numbers by describing real-world contexts model addition and subtraction of integers on a number line (vertical and horizontal) understand how to use absolute value of a number calculate the distance from zero on a number line model how to add, subtract, multiply and divide negative rational numbers identify the solution to a real world problem as either positive or negative OASIS, LLC The academic vocabulary or content language is listed under each standard. There are 30-40 words in bold that should be taught to mastery. Math Standard: 7.NS.3 Solve real-world and mathematical problems involving the four operations with rational numbers. (Computations with rational numbers extend the rules for manipulating fractions to complex fractions.) fractions to rational numbers by requiring that operations continue to satisfy the properties of operations, particularly the distributive property, leading to products such as (–1)(–1) = 1 and the rules for multiplying signed numbers. Interpret products of rational numbers by describing real-world contexts. b. Understand that integers can be divided, provided that the divisor is not zero, and every quotient of integers (with non-zero divisor) is a rational number. If p and q are integers, then – (p/q) = (–p)/q = p/ (–q). Interpret quotients of rational numbers by describing real-world contexts. c. Apply properties of operations as strategies to multiply and divide rational numbers. d. Convert a rational number to a decimal using long division; know that the decimal form of a rational number terminates in 0s or eventually repeats. 7.NS.2 Essential Skills and Concepts: 1. Interpret sums, differences, products and quotients of rational numbers by describing real-world contexts model addition and subtraction of integers on a number line (vertical and horizontal) understand how to use absolute value of a number calculate the distance from zero on a number line model how to add, subtract, multiply and divide negative rational numbers identify the solution to a real world problem as either positive or negative 7.NS.3 Essential Skills and Concepts: 1. Use order of operations to write and solve problems with all rational numbers use the order of operations to solve problems with rational numbers including complex fractions The academic vocabulary or content language Essential MATH Skills Alignment – Math Standards is listed under each standard. There are 30-40 Content Source: 2013-2014 Iredell-Statesville Schools– Format Design: OASIS, LLC words in bold that should be taught to mastery. Grade: Seventh – The Number System 2. Apply properties of operations 2. Apply properties of operations show that a number and its opposite have a sum show that a number and its opposite have a sum of zero (additive inverse property) of zero (additive inverse property) apply the distributive property to rational apply the distributive property to rational numbers numbers recognize that a number cannot be divided by recognize that a number cannot be divided by zero zero 3. Convert a rational number to a decimal 3. Convert a rational number to a decimal divide the numerator by the denominator using divide the numerator by the denominator using long division long division determine if the decimal terminates or repeats determine if the decimal terminates or repeats Mathematical Language: complex fractions, order of Mathematical Language: properties of operations Mathematical Language: properties of operations operations, integer (associative, commutative, identity, distributive), (associative, commutative, identity, distributive), rational numbers, terminating decimals, repeating decimals rational numbers, terminating decimals, repeating decimals Essential MATH Skills Alignment – Math Standards Content Source: 2013-2014 Iredell-Statesville Schools– Format Design: Grade: Seventh – Expressions and Equations Math Standard: 7.EE.1 Math Standard: 7.EE.2 Apply properties of operations as strategies to add, Understand that rewriting an expression in different subtract, factor, and expand linear expressions with forms in a problem context can shed light on the rational coefficients. problem and how the quantities in it are related 7.EE.1 Essential Skills and Concepts: 1. Use properties of operations to write equivalent expressions using rational numbers. simplify expressions factor expressions. ie. 5x + 10 = 5(x +2) use properties to expand expressions 7.EE.2 Essential Skills and Concepts: 1. Rewrite expressions to better understand a real world problem show how different quantities are related by rewriting the expression using variables Mathematical Language: expression, factor, rational number, term, constant, coefficient, variable Mathematical Language: expression, quantity Math Standard: 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. 7.EE.4 Essential Skills and Concepts: 1. Write and solve multi-step equations from realworld word problems identify the variable in a real world problem identify the coefficient in a real world problem. identify the constant in a real world problem identify the operation need to solve the problem use inverse operations to solve an equation 2. Write and solve multi-step inequalities from realworld word problems identify the inequality symbol needed to solve the problem know that the inequality symbol changes direction when multiplying or dividing by a negative coefficient graph the solution set of an inequality a. Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach. 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. (see middle column for skills and concepts) Mathematical Language: variable, coefficient, constant, equation, inequality, inverse operations, solution, solution set OASIS, LLC The academic vocabulary or content language is listed under each standard. There are 30-40 words in bold that should be taught to mastery. Math Standard: 7.EE.3 Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies. 7.EE.3 Essential Skills and Concepts: 1. Use tools and strategies to solve multi-step real-life world problems. convert between fractions, decimals and percents use estimation and mental computation strategies Mathematical Language: estimation, convert, properties of operations (associative, commutative, identity, distributive Essential MATH Skills Alignment – Math Standards Content Source: 2013-2014 Iredell-Statesville Schools– Format Design: Grade: Seventh – Geometry Math Standard: 7.G.1 Math Standard: 7.G.2 Solve problems involving scale drawings of geometric Draw (freehand, with ruler and protractor, and with figures, including computing actual lengths and areas technology) geometric shapes with given conditions. from a scale drawing and reproducing a scale drawing Focus on constructing triangles from three measures at a different scale. of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle. 7.G.1 Essential Skills and Concepts: 7.G.2 Essential Skills and Concepts: 1. Solve problems involving scale drawings of 1. Draw geometric figures given parameters geometric figures draw the geometric shape by freehand identify the scale factor of two given figures draw the geometric shape with ruler and draw a geometric figure to scale protractor calculate area of a scale drawing draw the geometric shape with technology find missing lengths of a scale drawing 2. Determine if three given lengths create a triangle investigate the changing in dimensions as it recognize the sum of two smaller sides must be relates to scale factor larger than the third side. Mathematical Language: scale factor, scale drawing, Mathematical Language: obtuse, acute, isosceles, scale, scale model, dimensions equilateral, scalene, right (triangle classification) Math Standard: 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. 7.G.4 Essential Skills and Concepts: 1. Explain the relationship between the parts of a circle to generate the formulas for circumference and area examine the relationship between the radius and the diameter and their role in calculating the circumference of a circle explain how Pi is derived from the ratio of the circumference to the diameter examine the relationship between the radius, the diameter, and Pi and their role in calculating the area of a circle examine and explain the relationship between the area and circumference of a circle 2. Use the formula for circumference and area of circles to solve problems. solve mathematical and real-life problems using knowledge of the formula for circumference and area of circle (see middle column for language) Math Standard: 7.G.5 Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure. 7.G.5 Essential Skills and Concepts: 1. Write equations using facts about supplementary, complimentary, vertical and adjacent angles to solve for an unknown angle in a figure use knowledge of angles to write and solve equations for the unknown angle in a figure 7.G.4 Mathematical Language: radius, diameter, Pi, circumference, area of a circle, arc, center, chord 7.G.5 Mathematical Language: supplementary angles, complimentary angles, vertical angles, adjacent angles, central angle 7.G.6 Mathematical Language: area, volume, surface area, polygon, composite shapes OASIS, LLC The academic vocabulary or content language is listed under each standard. There are 30-40 words in bold that should be taught to mastery. Math Standard: 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. 7.G.3 Essential Skills and Concepts: 1. Identify cross-sectional views of right rectangular prisms and pyramids. recognize that cuts made parallel will take the shape of the base. recognize that cuts made perpendicular will take the shape of the lateral face recognize that cuts made at an angle will produce a parallelogram Mathematical Language: cross-section, parallel, perpendicular, face, lateral face, base, parallelogram, right rectangular prism, right rectangular pyramid Math Standard: 7.G.6 Solve real-world and mathematical problems involving area, volume and surface area of two- and threedimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms. 7.G.6 Essential Skills and Concepts: 1. Solve real world problems involving area of twodimensional figures. find the area using the formula for triangles, quadrilaterals, and polygons. find the unknown side length when given the area 2. Solve real world problems involving volume of three-dimensional figures find the volume using the formula for cubes and right rectangular prisms and triangular prisms find the unknown side length when given the volume 3. Solve real world problems involving surface area of three-dimensional figures add the faces/base(s) of a three-dimensional figure to calculate surface area find the unknown side length of a cube when given the surface area(see middle column for lang.) Essential MATH Skills Alignment – Math Standards Content Source: 2013-2014 Iredell-Statesville Schools– Format Design: Grade: Seventh – Statistics & Probability Math Standard: 7.SP.1 Math Standard: 7.SP.2 Understand that statistics can be used to gain Use data from a random sample to draw inferences information about a population by examining a sample about a population with an unknown characteristic of of the population; generalizations about a population interest. Generate multiple samples (or simulated from a sample are valid only if the sample is samples) of the same size to gauge the variation in representative of that population. Understand that estimates or predictions. random sampling tends to produce representative For example, estimate the mean word length in a book samples and support valid inferences by randomly sampling words from the book; predict OASIS, LLC The academic vocabulary or content language is listed under each standard. There are 30-40 words in bold that should be taught to mastery. Math Standard: 7.SP.3 Informally assess the degree of visual overlap of two numerical data distributions with similar variabilities, measuring the difference between the centers by expressing it as a multiple of a measure of variability. the winner of a school election based on randomly sampled survey data. 7.SP.1 Essential Skills and Concepts: 1. Identify how statistics can be used to gain information about a population. explain why it is difficult to gather statistics on an entire population understand that a sample is only valid if it is representative of a population describe the characteristics of random sampling use a random sample to draw inferences about a population Gauge how far off the estimate or prediction might be 7.SP.2 Essential Skills and Concepts: 1. Create a random sample from a population identify the population collect data from multiple random samples (collected or simulated) compare data collected from random samples use collected data to make a prediction about the population Mathematical Language: population, random sample, statistics, survey, inference Mathematical Language: population, random sample, simulated sample, prediction Math Standard: 7.SP.4 Use measures of center and measures of variability for numerical data from random samples to draw informal comparative inferences about two populations. Math Standard: 7.SP.5 Understand that the probability of a chance event is a number between 0 and 1 that expresses the likelihood of the event occurring. Larger numbers indicate greater likelihood. A probability near 0 indicates an unlikely event, a probability around . indicates an event that is neither unlikely nor likely, and a probability near 1 indicates a likely event. 7.SP.5 Essential Skills and Concepts: 1. Determine the likelihood of an event occurring understand and define the concept of theoretical probability know that all probabilities are between 0 and 1 and are written as a fraction understand that the closer the fraction is to 1 the greater the probability of the event will occur 7.SP.4 Essential Skills and Concepts: 1. analyze two sets of data by comparing the measures of center and variability draw comparative inferences using two sets of data 7.SP.3 Essential Skills and Concepts: 1. Calculate and compare measures of central tendency and variability for two sets of data calculate and compare the mean and Mean Absolute Deviation (M.A.D.) for two sets of data calculate and compare the median and interquartile range for two sets of data Mathematical Language: measures of center (central tendency), variability, Mean Absolute Deviation, interquartile range Math Standard: 7.SP.6 Approximate the probability of a chance event by collecting data on the chance process that produces it and observing its long-run relative frequency, and predict the approximate relative frequency given the probability. 7.SP.6 Essential Skills and Concepts: 1. Explore the relationship between theoretical and experimental probability. conduct experiments with various numbers of trials record the relative frequency (number of successful events) when conducting an experiment recognize that as the number of trials increase, the experimental probability approaches the theoretical probability Essential MATH Skills Alignment – Math Standards Content Source: 2013-2014 Iredell-Statesville Schools– Format Design: Grade: Seventh – Statistics & Probability 7.SP.4 Mathematical Language: measures of center 7.SP.5 Mathematical Language: probability, (central tendency), measures of variability, theoretical probability comparative inferences Math Standard: 7.SP.7 Develop a probability model and use it to find probabilities of events. Compare probabilities from a model to observed frequencies; if the agreement is not good, explain possible sources of the discrepancy. a. Develop a uniform probability model by assigning equal probability to all outcomes, and use the model to determine probabilities of events. b. Develop a probability model (which may not be uniform) by observing frequencies in data generated from a chance process. Math Standard: 7.SP.8 Find probabilities of compound events using organized lists, tables, tree diagrams, and simulation. a. Understand that, just as with simple events, the probability of a compound event is the fraction of outcomes in the sample space for which the compound event occurs. b. Represent for compound events using methods such as organized lists, tables and tree diagrams. For an event described in everyday language (e.g., “rolling double sixes”), identify the outcomes in the sample space which compose the event. c. Design and use a simulation to generate frequencies for compound events. 7.SP.7 Essential Skills and Concepts: 1. Determine the likelihood of an event occurring in a real-world application use probability model to predict outcomes and the probability an event will happen Mathematical Language: probability, theoretical probability, experimental probability, outcomes, events, sample size For example, use random digits as a simulation tool to approximate the answer to the question: If 40% of donors have type A blood, what is the probability that it will take at least 4 donors to find one with type A blood? 7.SP.8 Essential Skills and Concepts: 1. Determine probability of compound events define compound events as either independent or dependent calculate compound events use organized lists, tables, tree diagrams, and simulations to determine the probability of compound events Mathematical Language: probability, theoretical probability, experimental probability, relative frequency, outcomes, events, sample size, tree diagrams, compound events, organized lists, simulations OASIS, LLC The academic vocabulary or content language is listed under each standard. There are 30-40 words in bold that should be taught to mastery. 7.SP.6 Mathematical Language: probability, theoretical probability, experimental probability, relative frequency, outcomes, events, sample size