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Ideas for Progress: Mathematics, Range 13–15

To enhance their skills in each mathematics-related strand, students who score in the 13–15 score range on the ACT® college readiness assessment may benefit from activities that encourage them to do the following:

Score Range 13–15
Number and Quantity
  • recognize and apply place value, rounding, and basic properties of integers
  • locate and describe integers in terms of their position on the number line
Algebra and Functions
  • investigate and build understanding of the concept of percentage as a comparison of a part to a whole
  • use multiple operations to solve multistep mathematical problems
  • model a variety of real-world and mathematical problems with graphs
  • use the language of the discipline (e.g., greater than and less than, increasing and decreasing) to describe real-world and mathematical problems
Algebra
  • use mathematical symbols and variables to express a relationship between quantities (e.g., the number of 59¢ candy bars that you can buy for $5 must satisfy 59n ≤ 500)
  • evaluate algebraic expressions and solve simple equations, using whole numbers
  • identify like terms in algebraic expressions
Functions
  • compare numerical patterns generated by a simple addition rule (e.g., add 2) and a simple multiplication rule (e.g., multiply by 2)
Geometry
  • apply the definitions of parallel and perpendicular lines to describe characteristics of real-world and mathematical problems
  • describe, compare, and contrast plane and solid figures, using their properties
  • distinguish between area and perimeter, and find the area or perimeter when all relevant dimensions are given
  • locate and describe objects in terms of their relative positions
Statistics and Probability
  • solve real-world and mathematical problems that involve measures of central tendency (e.g., mean, median, mode)
  • read and interpret data from different displays (e.g., box-and-whisker plots, stem-and-leaf plots), and use them along with additional information to solve real-world and mathematical problems
  • conduct simple probability experiments, and represent results using different displays
  • find the probability of a simple event and the probability of its complement