Pythagorean Theorem Lesson Aligned to the Common Core Standards


altBy Cameron Pipkin

This Pythagorean theorem lesson aligned to the Common Core Standards comes from math teacher Megel Barker (you can see more of his work at https://www.youtube.com/user/whynvme1?feature=watch). It does a pretty good job of connecting  math to objects in students’ lives, and should help increase engagement.

This Pythagorean theorem lesson aligned to the Common Core Standards is aligned to CCSS.Math.Content.8.G.B.7

How Big Is My Screen?

Pythagorean theorem made real by connecting the size of television screens to the hypotenuse of a RAT.

1) Objectives

2) Activity

In this Pythagorean theorem lesson aligned to the Common Core Standards, learners are given cards with information such as "3 squared," and asked to seek out the matching answers. This is done with Tarsia domino software and grouped from 1–10 (higher for better groups). Learners will then seek connections between the square numbers, hence Pythagorean triples. This is better as a group activity. It introduce history of Pythagorean triples.

3) Pythagorean Triples

Following on from previous slides. Make sure to set homework to find others that are co-prime (could be a challenge to class).

4) How Big Is My Screen?

pythagorean theorem lesson aligned to the Common Core Standards

In this Pythagorean theorem lesson aligned to the Common Core Standards, relate a fictitious story of TV shopping and finding it difficult to understand why TVs with same size have different shape. Find out what the measurement is of a 50 inch TV. Link this to a right angle and hence keyword hypotenuse = diagonal of rectangle etc.

5) Where is the Hypotenuse?

pythagorean theorem lesson aligned to the Common Core Standards

This is a simple activity to locate a hypotenuse. Print this screen for the class to work on. This is a vital skill in doing Pythagorean theorem.

6) Pythagoras' Theorem

common core standards

Here you can share the formula and connect c to hypotenuse.

7) How Big Is My iPad?

common core

In this Pythagorean theorem lesson aligned to the Common Core Standards, use the theorem to find iPad screen size. Model working out and emphasizing the square root function.

8) How Big Are the Screens?

pythagorean theorem lesson aligned to the Common Core Standards

Here are some practice questions. Print this screen for learners to use. 

9) What Have We Learned Today?

Recap keywords, hypotenuse, diagonal; reset HW on finding triples, explanations on how to do it, could even provide a wrong answer for them to correct.