Tangled Angles
geometry · classifying angles
Classify given angles as acute, right, obtuse, straight and reflex [6.SS(M).12].
Tangled Angles is a Grade 4 geometry game where a spinner tells students which type of angle to build on a geoboard. Players use three pegs and an elastic to create acute, right, obtuse, straight, or reflex angles without crossing existing arms or reusing pegs. As the board fills, finding a valid construction becomes more challenging.
Use it in a small group when students are learning to classify angles by size. Requiring players to name the angle type before building keeps the geometry vocabulary connected to the model. Create a free Find a Math Game account to generate teacher-ready lesson support for Tangled Angles. No credit card is required, with 3 lifetime lesson generations.
- Grades:
- 4
- Players:
- 2 or more players
- Materials:
- printable
- Classroom use:
- small group
Standards alignment
Official Rules
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Original Printable
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