# Westport

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

### Number of Students Included: 145

 Westport - GRADE 07 MATHEMATICS ITEM INFORMATION PERCENT OF DISTRICT'S POSSIBLE POINTS ITEM TYPE REPORTING CATEGORY STANDARD ITEM DESC POSSIBLE POINTS WESTPORT 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 79% 76% 3 2 SA NS 7.NS.A.2 Determine the product of an expression using order of operations. 1 55% 62% -7 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 63% 58% 5 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 68% 62% 6 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 59% 55% 4 6 SR NS 7.NS.A.3 Use the four operations to determine the value of a given multi-step expression containing fractions. 1 54% 47% 7 7 SR NS 7.NS.A.3 Compute with rational numbers representing temperature changes in a real-world context. 1 57% 45% 12 8 SR GE 7.G.A.3 Determine which two-dimensional figure results from slicing a three-dimensional figure in a given way. 1 85% 73% 12 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 34% 30% 4 10 SA NS 7.NS.A.1 Determine the sum of two numbers expressed as absolute values. 1 63% 58% 5 11 SR SP 7.SP.A.1 Determine which sampling strategy will result in a representative sample of a population. 1 37% 35% 2 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 64% 55% 9 13 SA GE 7.G.A.2 Determine if a unique triangle can be formed using a given set of conditions. 1 19% 21% -2 14 SR SP 7.SP.B.3 Create correct comparison statements about mean and mean absolute deviation based on line plots. 1 44% 38% 6 15 SA SP 7.SP.C.8 Determine the probability of a given compound event by using a tree diagram. 1 26% 26% 0 16 SR EE 7.EE.A.2 Determine an equivalent expression to a given expression representing a real-world context. 1 26% 29% -3 17 SR GE 7.G.B.4 Determine the circumference and the area of a given circle. 2 72% 61% 11 18 SA EE 7.EE.A.1 Use the distributive property to simplify a linear expression. 1 32% 25% 7 19 SR SP 7.SP.C.7 Using a uniform probability model, determine the probabilities of events expressed as decimals, fractions, or percents. 1 42% 34% 8 20 SR RP 7.RP.A.3 Solve a multi-step percent problem using proportional relationships involving markdowns. 1 41% 32% 9 21 SR NS 7.NS.A.1 Determine which addition expression is equivalent to a given subtraction expression. 1 56% 58% -2 22 SR EE 7.EE.A.2 Determine which expression is equivalent to a given expression. 1 48% 51% -3 23 SA EE 7.EE.B.4 Graph the solution set of an inequality that represents a real-world problem. 1 61% 43% 18 24 SR RP 7.RP.A.1 Compute a unit rate associated with ratios of fractions in a real-world problem. 1 43% 32% 11 25 SR NS 7.NS.A.3 Solve a real-world problem that involves fractions and mixed numbers using operations. 1 47% 46% 1 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 47% 39% 8 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 54% 45% 9 28 SR SP 7.SP.B.3 Express the difference between two means in terms of the mean absolute deviation. 1 30% 30% 0 29 SR EE 7.EE.A.1 Expand a linear expression with a rational coefficient. 1 54% 38% 16 30 SA EE 7.EE.B.4 Solve a two-step equation. 1 84% 79% 5 31 SR NS 7.NS.A.3 Convert a value from one system of measurement to another using operations. 1 86% 78% 8 32 SA EE 7.EE.B.4 Write an equation to model a given written scenario based on a real-world context. 1 41% 29% 12 33 SR RP 7.RP.A.2 Determine which proportion represents a given real-world relationship. 1 70% 63% 7 34 SR RP 7.RP.A.3 Determine the solution of a percent increase problem with real-world context. 1 66% 55% 11 35 SA EE 7.EE.B.3 Solve a real-world, multi-step problem involving mixed numbers, percents, and whole numbers. 1 48% 39% 9 36 SA RP 7.RP.A.1 Determine the unit rate in a multi-step problem, given a real-world scenario. 1 22% 24% -2 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 42% 34% 8 38 SR RP 7.RP.A.2 Determine the unit rate in a real-world problem. 1 56% 54% 2 39 SA SP 7.SP.B.3 Determine the number of data that lie between the means of two data sets. 1 32% 26% 6 40 SR EE 7.EE.B.4 Choose an expression that can be used to solve a real-world problem. 1 86% 76% 10