Overview

Note: Before this assessment is used, students will need to collect data from their classmates. They will need to poll 11 students on whether they like cats or like dogs. 

In this performance assessment, students will be asked to compare fractions and justify their conclusions using a model. This assessment can be used at any time in grade 3 after students have demonstrated proficiency with comparing two fractions with the same numerator or denominator and justifying their conclusions. 

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.

Comparing Fractions 1

Students can compare two fractions with the same numerator or the same denominator, and justify their conclusions, using number lines and other models.

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 made more than 1 error comparing the fractions.
No exemplars at this time.
  • I made only 1 error comparing the fractions. 
No exemplars at this time.
  • I accurately compared all of the fractions. 
No exemplars at this time.

Reasoning and Explaining

  • My explanation (either in words or models) was inaccurate or required the reader to make a lot of inferences. 
No exemplars at this time.
  • My explanation (either in words or models) was accurate and very basic. 
No exemplars at this time.
  • My explanation (either in words or models) was very clear, and/or used precise mathematics vocabulary or models, and/or I was able to explain my thinking accurately and clearly in multiple ways. 
No exemplars at this time.

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