MAP Growth Mathematics
MAP Growth Mathematics is an adaptive assessment: item difficulty changes after each response, and the reported score is a RIT value on an equal-interval scale, not a percentage or grade-level label. Items cover number and operations, algebra, geometry and measurement, and data analysis/probability, with emphasis on multistep problem solving and modeling. Because the test is untimed, a slow, checked solution is usually better than a fast guess; early items can fall below grade level as the test locates the student’s level, so they are not a signal that the whole test is easy.
Core rules and concepts
- Translate words into an equation or model before calculating.
- Keep units attached and convert before combining quantities.
- Estimate first to catch unreasonable answers.
- Check algebra by substituting back into the original equation.
- For geometry, label dimensions and distinguish perimeter from area.
Worked example
A rectangular garden is 12 m by 7 m. A path 1 m wide surrounds it. What is the path area? The path adds 1 m on every side, so outer dimensions are 12 + 2 = 14 m and 7 + 2 = 9 m. Outer area = 14 × 9 = 126 m². Inner garden area = 12 × 7 = 84 m². Path area = 126 − 84 = 42 m². The reasoning depends on adding the width twice per dimension; adding 1 m once gives the wrong outer rectangle.
Traps that cost marks
Adding a border width only once, mixing perimeter and area, dropping units, distributing a negative incorrectly, and choosing an answer that matches an intermediate value rather than the requested quantity. Multistep items often include distractors for each partial step.