Overview

In this performance assessment, students will demonstrate their understanding of calculating distance by taking the absolute value of the difference of two values.

This assessment is best used once students have had instruction and practice calculating distance using subtraction of signed numbers with absolute value.

Details

Big Ideas & Competencies

Big Ideas Competencies

A. Understanding and Applying Number Systems

Students understand that numbers hold value and can choose the appropriate representations and algorithms to reason quantitatively, abstractly, and efficiently.

Rational Numbers 1

Students can show that the distance between two rational numbers on the number line is the absolute value of their difference and apply this principle in real-world contexts.

NOTE ABOUT ASSESSMENT RUBRICS

Below are analytic teacher rubrics. The column on the left shows the dimension that is being measured in the student’s performance. The levels across the top row indicate the performance level in the dimensions. Occasionally all dimensions and performance levels are exemplified by multiple students in a single recording.

Teacher Rubric

Dimensions Not Yet Meeting Expectations Meeting Expectations Exceeding Expectations

Concepts and Procedures

  • I can solve part of the problem, but I am confused in some places and have calculation mistakes.  
No exemplars at this time.
  • I can solve the problem using strategies that make sense with minor calculation mistakes. 
No exemplars at this time.
  • I can solve the problem efficiently and accurately without any calculation mistakes and representing values in situations as integers.
No exemplars at this time.

Reasoning and Explaining

  • I can explain some of how I solved the problem.
No exemplars at this time.
  • I can show the thinking I used to solve the problem.
No exemplars at this time.
  • I can show the thinking I used to solve the problem in a way that another person can easily understand my math reasoning.
No exemplars at this time.

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