# Category Sort Math Activity: Identify Proportional Relationships

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Common Core Standards
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Sheltered language strategies are teaching strategies that focus on teaching academic vocabulary at the same time as academic content. These types of strategies have been researched and shown to improve student learning, especially for ELLs. This Category Sort activity combines academic vocabulary, student interaction, and the process skill of classifying. Students classify linear functions as being proportional or non-proportional. They then can sort the cards by positive slope or negative slope. They use a sentence frame to help them justify why they have classified a linear function into one of those categories. This activity is aligned with CCSS 8.EE.B.5.

This resource contains:

•2 sorting mats: Round 1: Sort by proportional relationship or non-proportional relationship. Round 2: Sort by positive slope or negative slope.

• Students will need one per group if working in groups, or one per person if working individually. Groups of 2-3 seem to be optimal. Working individually removes the interaction component and is less desirable.

•1 page with the Category Sort Cards (these are not in order, so if you have the students cut them out, you will not be giving away the answers). Use one set of cards per partnership, or one set per person if working individually.

•2 Answer keys, one for each round.

How to do a category sort:

1.Cut out or have students cut out the Category Sort cards. There should be 8 cards total.

2.Round 1: Using the sorting mat, students arrange all 8 cards into the two categories.

3.Circulate and listen to conversations and prompt students to explain their reasoning.

4.Debrief as a whole class if appropriate.

5.Repeat for Round 2.

Teacher tips:

•Print the sorting mats 2-sided to save paper.

•Print on colored paper and card stock if you have access to those supplies.

•Some teachers like to paste, tape, or glue the cards to the mats during this activity. I prefer to avoid tape and glue and choose to just have the students manipulate the cards and then collect the cards to store in envelopes to use again in the future.

•This activity makes a great formative assessment.

This makes a great review activity later in the year!

Looking for more Category Sort Activities? Check out the products below:

Category Sort: Identify Slope and y-intercept

Category Sort: Qualitative Graphs Increasing/Decreasing & Linear/Non-Linear

Looking for more activities about Proportional Relationships? Check out the resources below:

Content and Language Objectives: Analyze and Compare Proportional Relationships

One Question Quizzes/Exit Tickets: Analyze and Compare Proportional Relationships

4-Square Vocabulary Math Activity: Proportional Relationships, Unit Rate

Bundle: All 5 Activities for Proportional Relationships

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9 pages
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