Sometimes math requires dealing with fractions. An instructional video shows how to substitute into a formula and solve for an unknown measure. Pupils watch as the presenter determines the height of a triangle even when the length of the base is an odd number.

Concepts

area, area formulas, area of triangles, one-step equations, solving equations, solving for 1 variable

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Additional Tags

math

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Instructional Ideas

• Ask the class to find another way of working with the fractions

Classroom Considerations

• Requires knowledge of reciprocals
• Assumes learners have knowledge of solving one-step equations

• This video is hosted on YouTube

Pros

• Labels the sides and height of the triangle to show the visible representation of the question
• Uses colors to highlight the multiplication of the fraction

Cons

• None

Common Core

SL.6.2 SL.7.2 MP1 MP7 6.EE.B.7 6.G.A.1