6th Grade Math - Area Formulas

This post explains and gives practice opportunities related to TEKS 6.8B:

model area formulas for parallelograms, trapezoids, and triangles by decomposing and rearranging parts of these shapes

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Instruction

Area formulas should be memorized but that doesn't mean students should know how to derive them. Here's how to find the formula for the area of a triangle.

Here's a video showing how to derive the area of a parallelogram.

Finally, the formula for area of a trapezoid can be represented multiple ways.

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STAAR Practice

Between 2016 and 2024, this supporting standard has been tested 2 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, click here. The videos below are linked to the questions in the quiz as answer explanations after the quiz is submitted.

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To view all the posts in this 6th grade TEKS review series, click here.