Drawing triangles
๐ฏ Objective: Students draw triangles from given conditions and see when a unique triangle exists.
Lesson outline
- Straw triangles.
- Triangle inequality.
- Practice.
- Exit: can 2, 3, 6 form a triangle?
Lesson 2 of 6 in this unit. In the Lesson Planner this lesson takes 1โ3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.
Practice & resources on Thinkabara
๐๏ธ Plan the whole year like this
Add 7th Grade Math to your free Lesson Planner: enter your timetable once and every period shows the next lesson, skipping weekends and school breaks.
More lessons in โAngles, circles, area & volumeโ
- Angle relationships
- Drawing triangles
- Circumference
- Area of circles
- Cross sections
- Surface area and volume
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