Act sample Item Comparisons

It is not clear what CCRS this problem is meant to address. These are our Geometry skills on the most common compass and straightedge constructions. There are additional construction skills, but they are less frequently taught to students.

	ACT CCRS: A 401 Evaluate algebraic expressions by substituting integers for unknown quantities (Score range 20–23) IXL skills: https://www.ixl.com/math/algebra-1/evaluate-variable-expressions-involving-integers https://www.ixl.com/math/algebra-1/linear-function-word-problems Notes: The first skill provides a wide range of expressions for students to evaluate. The second has word problems, but couches everything in terms of functions.
	ACT CCRS: AF 502 Build functions and write expressions, equations, or inequalities with a single variable for common pre-algebra settings (e.g., rate and distance problems and problems that can be solved by using proportions) (Score range 24–27) AF 602 Build functions and write expressions, equations, and inequalities for common algebra settings (e.g., distance to a point on a curve and profit for variable cost and demand) (Score range 28–32) IXL skills: https://www.ixl.com/math/algebra-1/linear-function-word-problems Notes: This problem is somewhere between AF 502 and AF 602.
	ACT CCRS: G 401 Use properties of parallel lines to find the measure of an angle (Score range 20–23) IXL skills: https://www.ixl.com/math/geometry/properties-of-parallelograms https://www.ixl.com/math/geometry/proving-a-quadrilateral-is-a-parallelogram
	ACT CCRS: AF 401 Solve routine two-step or three-step arithmetic problems involving concepts such as rate and proportion, tax added, percentage off, and estimating by using a given average value in place of actual values (Score range 20–23) IXL skills: https://www.ixl.com/math/algebra-1/percent-of-change-word-problems https://www.ixl.com/math/algebra-1/percent-of-a-number-tax-discount-and-more https://www.ixl.com/math/algebra-1/percent-word-problems