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# Re-Calling Pythagoras' Theorem

Lesson 3 of 4

## Objective: SWBAT apply Pythagorean Theorem to real-world problems involving right triangles.

#### Do Now

*10 min*

In this Do Now, students will have an opportunity to review finding the length of a line segment and also finding the midpoint of this segment. These two topics are skill based practice and require students to remember the distance and midpoint formulas. Also, the distance formula uses similar algebra skills, like squares and square roots, which may help students see patterns between we first derived the distance formula (MP 8).

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#### Computer Lab Practice

*20 min*

This section of the lesson really allows you to differentiate instruction to students' abilities. Some students may be able to handle more challenging problems that are based on SAT-like questions, and while in the computer lab, these students can practice these complex questions while looking for repeated reasoning(MP 1 and 8). Students who may be struggling with Pythagorean Theorem can also complete these more straight-forward questions and receive feedback on their work.

You can also assign these extra online problems for practice and/or homework.

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- UNIT 1: Introduction to Geometry: Points, Lines, Planes, and Angles
- UNIT 2: Line-sanity!
- UNIT 3: Transformers and Transformations
- UNIT 4: Tremendous Triangles
- UNIT 5: Three Triangle Topics
- UNIT 6: Pretty Polygons
- UNIT 7: MidTerm Materials
- UNIT 8: Circles
- UNIT 9: 3-D Shapes and Volume
- UNIT 10: Sweet Similar Shapes
- UNIT 11: Trig Trickery
- UNIT 12: Finally Finals