# Chelmsford

Districts Schools ## 2019 Item by Item Results for GRADE 07 MATHEMATICS

### Number of Students Included: 384

 Chelmsford - GRADE 07 MATHEMATICS ITEM INFORMATION PERCENT OF DISTRICT'S POSSIBLE POINTS ITEM TYPE REPORTING CATEGORY STANDARD ITEM DESC POSSIBLE POINTS CHELMSFORD STATE DISTRICT-STATE DIFFERENCE 1 SR RP 7.RP.A.1 Determine the unit rate using fractions and whole numbers to solve a real-world problem. 1 83% 76% 7 2 SA NS 7.NS.A.2 Determine the product of an expression using order of operations. 1 77% 62% 15 3 SR SP 7.SP.A.2 Use a given two-way table containing data from two populations to determine the probability of an event. 1 67% 58% 9 4 CR RP 7.RP.A.2 Determine whether the graphed relationship is proportional; use rate and ratio language to analyze the relationship; and write an equation to describe a proportional relationship. 4 74% 62% 12 5 SR NS 7.NS.A.2 Determine the quotient when dividing a decimal number by a decimal number that has a value less than one. 1 71% 55% 16 6 SR NS 7.NS.A.3 Use the four operations to determine the value of a given multi-step expression containing fractions. 1 61% 47% 14 7 SR NS 7.NS.A.3 Compute with rational numbers representing temperature changes in a real-world context. 1 61% 45% 16 8 SR GE 7.G.A.3 Determine which two-dimensional figure results from slicing a three-dimensional figure in a given way. 1 80% 73% 7 9 SA EE 7.EE.B.3 Solve a multi-step real-life problem posed with a positive whole number, percent, and a fraction. 1 35% 30% 5 10 SA NS 7.NS.A.1 Determine the sum of two numbers expressed as absolute values. 1 86% 58% 28 11 SR SP 7.SP.A.1 Determine which sampling strategy will result in a representative sample of a population. 1 39% 35% 4 12 CR EE 7.EE.B.4 Given a real-world context, create an equation and an inequality with variables, and use them to solve problems. 4 69% 55% 14 13 SA GE 7.G.A.2 Determine if a unique triangle can be formed using a given set of conditions. 1 28% 21% 7 14 SR SP 7.SP.B.3 Create correct comparison statements about mean and mean absolute deviation based on line plots. 1 60% 38% 22 15 SA SP 7.SP.C.8 Determine the probability of a given compound event by using a tree diagram. 1 52% 26% 26 16 SR EE 7.EE.A.2 Determine an equivalent expression to a given expression representing a real-world context. 1 45% 29% 16 17 SR GE 7.G.B.4 Determine the circumference and the area of a given circle. 2 81% 61% 20 18 SA EE 7.EE.A.1 Use the distributive property to simplify a linear expression. 1 38% 25% 13 19 SR SP 7.SP.C.7 Using a uniform probability model, determine the probabilities of events expressed as decimals, fractions, or percents. 1 49% 34% 15 20 SR RP 7.RP.A.3 Solve a multi-step percent problem using proportional relationships involving markdowns. 1 45% 32% 13 21 SR NS 7.NS.A.1 Determine which addition expression is equivalent to a given subtraction expression. 1 72% 58% 14 22 SR EE 7.EE.A.2 Determine which expression is equivalent to a given expression. 1 61% 51% 10 23 SA EE 7.EE.B.4 Graph the solution set of an inequality that represents a real-world problem. 1 55% 43% 12 24 SR RP 7.RP.A.1 Compute a unit rate associated with ratios of fractions in a real-world problem. 1 53% 32% 21 25 SR NS 7.NS.A.3 Solve a real-world problem that involves fractions and mixed numbers using operations. 1 54% 46% 8 26 CR SP 7.SP.C.5 Determine the likelihood of an event and calculate the probability of other events in a real-world context. 4 60% 39% 21 27 SA NS 7.NS.A.2 Determine the product of a negative fraction multiplied by a negative fraction, and then express the product as a rational decimal number. 2 58% 45% 13 28 SR SP 7.SP.B.3 Express the difference between two means in terms of the mean absolute deviation. 1 39% 30% 9 29 SR EE 7.EE.A.1 Expand a linear expression with a rational coefficient. 1 48% 38% 10 30 SA EE 7.EE.B.4 Solve a two-step equation. 1 87% 79% 8 31 SR NS 7.NS.A.3 Convert a value from one system of measurement to another using operations. 1 87% 78% 9 32 SA EE 7.EE.B.4 Write an equation to model a given written scenario based on a real-world context. 1 40% 29% 11 33 SR RP 7.RP.A.2 Determine which proportion represents a given real-world relationship. 1 77% 63% 14 34 SR RP 7.RP.A.3 Determine the solution of a percent increase problem with real-world context. 1 61% 55% 6 35 SA EE 7.EE.B.3 Solve a real-world, multi-step problem involving mixed numbers, percents, and whole numbers. 1 54% 39% 15 36 SA RP 7.RP.A.1 Determine the unit rate in a multi-step problem, given a real-world scenario. 1 30% 24% 6 37 CR GE 7.G.B.5 Use facts about angles to write and solve equations that can be used to find the measures of unknown angles in a diagram. 4 50% 34% 16 38 SR RP 7.RP.A.2 Determine the unit rate in a real-world problem. 1 63% 54% 9 39 SA SP 7.SP.B.3 Determine the number of data that lie between the means of two data sets. 1 45% 26% 19 40 SR EE 7.EE.B.4 Choose an expression that can be used to solve a real-world problem. 1 87% 76% 11