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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co, G Srt Congruence of Parallelograms

For Teachers 9th - 10th Standards
In this task, a student has learned the SSS and SAS congruence tests for triangles and wonders if these tests might work for parallelograms. Aligns with G-CO.C.11 and G-SRT.B.5
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 8.g, G Srt Points From Directions

For Teachers 9th - 10th Standards
For this problem, students must carefully read the description of a triangle and a fourth point that lies outside it and draw a picture to represent the problem. They must then use the Pythagorean Theorem to find side lengths. Aligns...