Free Function vs. Relation Venn Diagram Algebra Sorting Activity

Description

Students sort tables, graphs, equations and ordered pairs into "function" or "relation" Venn categories in this activity. The inner circle of the Venn diagram is where functions go to show that functions are always relations but relations are not always functions.

I have used this algebra activity as an introduction to functions, as a warm up after a lesson on functions and as a closer. The printable version can be glued into an interactive notebook as a lasting reference.

> Browse all algebra activities

> Browse all free algebra

This activity was updated with a GOOGLE Slides version that students can complete online. The digital activity can also be downloaded as a PowerPoint file and still be interactive. Includes both print and digital.

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Free Function vs. Relation Venn Diagram Algebra Sorting Activity

Name: Free Function vs. Relation Venn Diagram Algebra Sorting Activity
Brand: Scaffolded Math and Science
SKU: 1699717
Availability: InStock
Rating: 4.75 (159 reviews)

Scaffolded Math and Science

35.6k Followers

FREE

Highlights

Digital downloads

Google Apps, PDF

Grades

8th - 10th

Subjects

Algebra, Math

Standards

CCSS8.F.A.1

CCSSHSF-IF.A.1

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Description

> Browse all algebra activities

> Browse all free algebra

You may also like:

Evaluating Algebraic Functions Digital Math Escape Room Activity

Increasing and Decreasing Functions Matching Activity

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Report this resource to TPT

Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

4.8

Rated 4.75 out of 5, based on 159 reviews

159
ratings

136

Mostly used with 8th and 9th grades

Reviews

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Helpful Resource

Rated 5 out of 5

June 2, 2026

Met expectations

Would purchase more

Standards-aligned

This sorting activity is an excellent resource for helping students visualize the differences between functions and relations. The Venn diagram format is highly intuitive and allows my students to grasp the concept much quicker than using standard worksheets alone. It is well-crafted, standards-aligned, and fits perfectly into my algebra lesson.

Lori G.

586 reviews • Nevada

Grades taught: 9th, 10th, 11th, 12th

Student populations: Emerging bilinguals

great resource

Rated 5 out of 5

April 12, 2026

My students really enjoyed this resource! It helped to keep them engaged.

Kathryn M.

439 reviews • Illinois

Grades taught: 9th, 10th

$Scaffolded Math and Science$

Response from

Scaffolded Math and Science

(TPT Seller)

Apr 12, 2026

Thank you so much for your feedback, Kathryn!

Great Resource

Rated 5 out of 5

January 21, 2026

Activity was very use and well put together. Thank you.

Darnell A.

660 reviews • North Carolina

Grades taught: 9th, 10th, 11th, 12th

$Scaffolded Math and Science$

Response from

Scaffolded Math and Science

(TPT Seller)

Jan 21, 2026

Thank you for your review, Darnell!

8th Grade Approved

Rated 5 out of 5

December 9, 2025

Met expectations

Would purchase more

Standards-aligned

This resource was helpful to my students and my instruction.

Katie S.

1,598 reviews • North Carolina

Grades taught: 8th

Student populations: Learning difficulties

$Scaffolded Math and Science$

Response from

Scaffolded Math and Science

(TPT Seller)

Dec 14, 2025

Thank you so much for your feedback, Katie!

Great resource!

Rated 4 out of 5

August 25, 2025

Met expectations

Would purchase more

Love all the different representations of relations and functions. A few of the equations are a little challenging, but create good conversation.

Sara W.

89 reviews • Kentucky

Grades taught: 9th

$Scaffolded Math and Science$

Response from

Scaffolded Math and Science

(TPT Seller)

Aug 26, 2025

Thank you, Sara!

Stations Friendly

Rated 5 out of 5

August 15, 2025

Group or pair work. Laminate for Longevity or have students glue into interactive notebooks

Gr8Calcul8

(TPT Seller)

392 reviews • Massachusetts

Grades taught: 8th, 9th

$Scaffolded Math and Science$

Response from

Scaffolded Math and Science

(TPT Seller)

Aug 24, 2025

Thank you for your review!

Easy to use

Rated 5 out of 5

August 6, 2025

Met expectations

Would purchase more

Standards-aligned

I use this resource with algebra I students. I like that it forces them to think about all of the qualities of a function given examples they haven't seen yet.

Karen F.

6 reviews • Arkansas

Grades taught: 9th

$Scaffolded Math and Science$

Response from

Scaffolded Math and Science

(TPT Seller)

Aug 7, 2025

Thank you so much for your feedback, Karen!

Rated 5 out of 5

April 1, 2025

Great mini review and took my students no time at all but gave me great information for interventions.

Kimberly H.

125 reviews

Grades taught: 8th, 9th

Student populations: Autism, Learning difficulties

$Scaffolded Math and Science$

Response from

Scaffolded Math and Science

(TPT Seller)

Apr 1, 2025

Thank you, Kimberly!

Questions & Answers

Standards

to see state-specific standards (only available in the US).

CCSS8.F.A.1

Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output.

CCSSHSF-IF.A.1

Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If 𝘧 is a function and 𝘹 is an element of its domain, then 𝘧(𝘹) denotes the output of 𝘧 corresponding to the input 𝘹. The graph of 𝘧 is the graph of the equation 𝘺 = 𝘧(𝘹).