Overview

In this performance assessment, students can represent solutions of inequalities on number line diagrams. Specifically, students will be asked to read scenarios and graph the inequalities.

This assessment is best used once the students have had instruction and practice writing inequalities of the form x > c or x < c to represent a constraint or condition in a real-world or mathematical problem, as well as representing solutions of inequalities on number line diagrams.

Details

Big Ideas & Competencies

Big Ideas Competencies

B. Operations and Algebraic Thinking

Students can use mathematics to analyze and evaluate historical, political, economic, scientific, and social problems and make conjectures about possible solutions.

Solve Inequalities 2

Students can represent solutions of inequalities on number line diagrams.

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 am confused about how to use a number line to represent a solution of an inequality.
No exemplars at this time.
  • I make only minor mistakes when making using a number line to represent a solution of an inequality with few mistakes.
No exemplars at this time.
  • I can graph the solution to an inequality on a number line with no mistakes.
No exemplars at this time.

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