# Medford

Districts Schools

# 2022 Item by Item Results for GRADE 08 MATHEMATICS

## Number of Students Included: 308     Participation Rate = 99.00%

 Medford - GRADE 08 MATHEMATICS ITEM INFORMATION PERCENT OF DISTRICT'S POSSIBLE POINTS ITEM TYPE REPORTING CATEGORY STANDARD ITEM DESC POSSIBLE POINTS MEDFORD STATE DISTRICT-STATE DIFFERENCE 1 SR NSEE 8.EE.A.3 Convert a number in scientific notation to standard notation. 1 63% 72% -9 2 SR NSEE 8.NS.A.2 Determine the approximate location of an irrational number on a number line. 1 41% 49% -8 3 SR NSEE 8.EE.A.2 Evaluate square roots of small perfect squares and cube roots of small perfect cubes. 1 33% 44% -11 4 CR SP 8.SP.A.3 Interpret the meanings of the parts of an equation that represents a real-world context and use the equation to solve a real-world problem. 4 27% 30% -3 5 SR NSEE 8.NS.A.1 Determine a decimal equivalent of a given fraction. 1 32% 40% -8 6 SR NSEE 8.EE.C.8 Determine which given system of equations has no solution. 1 38% 42% -4 7 SR GE 8.G.A.1 Compare the properties of figures graphed on a coordinate plane after various transformations. 2 56% 58% -2 8 SR FN 8.F.B.4 Determine the rate of change and the initial value of a function from data represented in a table. 1 43% 43% 0 9 SA NSEE 8.EE.B.5 Determine and compare two rates of change in a given real-world context. 1 42% 48% -6 10 SR NSEE 8.EE.A.1 Determine which expression with an exponent is equivalent to a given expression featuring multiplication of two numbers with the same base but different exponents. 1 51% 47% 4 11 SA NSEE 8.EE.B.5 Graph a proportional relationship based on a real-world context. 1 65% 69% -4 12 CR GE 8.G.A.5 Use facts about the angle sum of triangles to calculate angle measures and determine whether two triangles are similar. 4 22% 31% -9 13 SR FN 8.F.B.5 Determine where the graph of a function is increasing or decreasing. 1 71% 71% 0 14 SR GE 8.G.B.6 Determine the relationship between the areas of three squares whose sides form a right triangle. 1 74% 73% 1 15 SR GE 8.G.C.9 Find the volume of a cone given its diameter and height. 1 60% 54% 6 16 SR FN 8.F.A.1 Determine which graph shows a relationship that is not a function. 1 49% 54% -5 17 SR NSEE 8.EE.B.6 Use similar triangles to compare the slope of two line segments on the same line. 1 45% 49% -4 18 SR FN 8.F.A.1 Determine if the values in a table represent a function after adding an ordered pair to the table. 1 58% 58% 0 19 SR FN 8.F.A.3 Determine which graph represents a linear function. 1 38% 40% -2 20 SR GE 8.G.A.2 Determine which transformation of a shape results in a given image. 1 65% 71% -6 21 SR FN 8.F.B.4 Determine the rate of change and the initial value of a function from the graph of the line that represents the function. 1 69% 66% 3 22 SR GE 8.G.A.1 Determine the effects of a rotation on the angles and sides of a triangle. 1 67% 69% -2 23 CR FN 8.F.A.2 Determine the initial values, rates, equations and solutions of linear relationships represented in different ways. 4 25% 32% -7 24 SR NSEE 8.NS.A.2 Compare two irrational numbers and one rational number by ordering them from least to greatest. 1 31% 39% -8 25 SR FN 8.F.A.3 Determine which statement about a linear equation is true. 1 71% 67% 4 26 SR NSEE 8.EE.C.7 Determine the number of solutions for a linear equation with one variable. 1 52% 57% -5 27 SR NSEE 8.NS.A.1 Identify an irrational number from a list of numbers. 1 74% 71% 3 28 SR NSEE 8.EE.C.8 Determine the coordinates of the solution of a system of equations. 1 45% 52% -7 29 SA NSEE 8.EE.A.3 Given two quantities, each expressed as a single digit multiplied by an integer power of ten, determine how many times as much one quantity is than the other. 1 31% 37% -6 30 SA NSEE 8.EE.C.7 Solve a linear equation by collecting like terms. 1 42% 52% -10 31 SR GE 8.G.A.5 Determine which angles are congruent when two parallel lines are intersected by a transversal. 1 60% 68% -8 32 SR SP 8.SP.A.2 Justify why a line drawn through data on a scatter plot is unsuitable as a line of best fit. 1 62% 62% 0 33 SR GE 8.G.A.3 Given a sequence of transformations, determine the coordinates of the image of a given point. 1 48% 51% -3 34 SR GE 8.G.A.4 Identify transformations which, when performed on a triangle, will result in a congruent figure. 1 44% 43% 1 35 SA GE 8.G.B.7 Determine an unknown side length of a right triangle using the Pythagorean Theorem. 1 38% 47% -9 36 SR GE 8.G.A.3 Determine the coordinates of a point in a figure on a coordinate plane after a reflection. 1 59% 64% -5 37 CR NSEE 8.EE.B.5 Graph a proportional relationship, interpreting the unit rate as the slope of the graph, and then compare that proportional relationship to another proportional relationship represented in a different way. 4 56% 61% -5 38 SR GE 8.G.A.2 Identify a transformation that would not result in a congruent figure. 1 51% 57% -6 39 SA NSEE 8.EE.A.1 Use and apply properties of integer exponents to simplify a numerical expression. 2 26% 30% -4 40 SA SP 8.SP.A.4 Use relative frequencies from a two-way frequency table to solve a real-world problem. 1 45% 48% -3