How to Find Missing Angles

Are your students learning how to find missing angles? When teaching this concept, students have to have an understanding of part-part-whole relationships as well as measurements of common angles such as right angles and straight angles. When students learn how to find the degrees of an angle without a protractor, students will use subtraction skills to find this measurement.

To play:

1. Choose a Bingo card and take a handful of counters. Place all angle cards face down in a pile where everyone can reach.
2. Take turns flipping over the angle cards. When a card is flipped, everyone solves to find the missing angle.Place a counter on your bingo card if you have that angle on it. When someone gets 5 in a row, call out, “Bingo!”
3. Use the answer key to check that the answers are correct.

Through this activity, students will show they can determine the measurement of a missing angle when given the whole angle measurement and 1 other angle. This small group bingo game can be played with up to 6 students.

Tips for Differentiation + Scaffolding 

A team of dedicated, experienced educators created this resource to support your math lessons.

This missing angle bingo game can be used to enhance learning through guided math groups or math centers.

If you have a mixture of above and below-level learners, check out these suggestions for keeping students on track with the concepts:

🆘 Support Struggling Students

For students who need additional support, provide visual reminders of common angle measurements. This will be helpful with the Bingo cards that do not list a whole angle measurement.

➕ Challenge Fast Finishers

For students who need a bit of a challenge, students could draw their own missing angle cards that equal one of the numbers on the Bingo cards.

Plan lessons for all ability levels with our 10 Best Scaffolding Strategies! 

Easily Prepare This Resource for Your Students

Use the dropdown icon on the Download button to choose between the PDF or editable Google Slides version of this resource.

Print on cardstock for added durability and longevity. Place all pieces in a folder or large envelope for easy access.

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This resource was created by Kaylynn Chupp, a teacher in Florida and Teach Starter Collaborator.

Don’t stop there! We’ve got more activities and resources that cut down on lesson planning time:

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