Triangles are not all created the same. The instructor shows how to find the area of different types of triangles using the formula. She also includes an example requiring coordinate geometry.

Concepts

area, area formulas, area of triangles, coordinate geometry, formulas

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Additional Tags

math

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Instructional Ideas

• Ask learners to record examples in their notes for reference
• Have pupils record important formulas on the cover of their notebooks for quick reference

Classroom Considerations

• Builds on previous lessons in a 40-part series 

• This video is hosted on YouTube

Pros

• Spends time developing an understanding of the height of a triangle
• Instruction is clear and easy to follow

Cons

• Video is unexciting in its presentation, so viewers might get bored

Common Core

HSG-GPE.B.7