Overview

In this performance assessment, students will use the context of an amusement park to apply their knowledge and skills related to operations and algebraic thinking in order to solve problems. Specifically, students will be asked to create and solve equations related to costs and rides at the park.

Students will use their understanding of each of these competencies to solve these problems and explain their methodology/process for finding their solutions. This assessment should be used after instruction on this competency in grade 8: 

  • Students can solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms. 

This assessment can also be used as a review activity in Grade 9. 

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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 Linear Equations 1

Students can solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms.

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 some of the problems, but I am confused in some places and have calculation mistakes.
  • I can solve the problems using strategies that make sense with few calculation mistakes. 
  • I can solve the problems efficiently and accurately without any calculation mistakes. 

Reasoning and Explaining
  • I can show some of the strategies and steps I used and explain how I solved the problem. 
  • I can show all of the strategies and steps I used. I can explain the thinking I used to solve the problems using some math vocabulary. 
  • I can show all of the strategies and steps I used. I can explain the thinking I used to solve the problems using precise math vocabulary in a way that another person can easily understand my math reasoning. 

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