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- 8.G.B.6Explain a proof of the Pythagorean Theorem and its converse.
- 8.G.B.7Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.
- 8.G.B.8Apply the Pythagorean Theorem to find the distance between two points in a coordinate system.

The Pythagorean Theorem and the Distance Formula

Algebra I

» Unit:

Radical Expressions, Equations, and Rational Exponents

Big Idea:The main point of this lesson is for students to recognize the similarities between the Pythagorean Theorem and the Distance Formula.

Rhonda Leichliter

Rural Env.

11 Resources

4 Favorites

11 Resources

4 Favorites

Playing Around with Pythagoras- Day 11

8th Grade Math

» Unit:

Playing Around with Pythagoras

Big Idea:Students get practice applying the Pythagorean Theorem to solve problems in this fast-paced collaborative game.

Heather Sparks

Urban Env.

13 Resources

11 Favorites

13 Resources

11 Favorites

Unit Assessment

8th Grade Math

» Unit:

Pythagorean Theorem

Big Idea:Crafting standards based assessments requires carefully tying each question to a particular standard in order to gauge mastery levels.

Christa Lemily

Suburban Env.

10 Resources

6 Favorites

10 Resources

6 Favorites

Playing Around with Pythagoras- Day 9

8th Grade Math

» Unit:

Playing Around with Pythagoras

Big Idea:Now that students are developing proficiency with applying the Pythagorean Theorem to solve problems, they are now ready to apply their conceptual knowledge to a coordinate plane.

Heather Sparks

Urban Env.

18 Resources

5 Favorites

18 Resources

5 Favorites

Day Four & Five

8th Grade Math

» Unit:

Welcome Back!

Big Idea:To help guide instruction for the year and establish a baseline for quarterly benchmark assessments, students will take a benchmark test aligned to the CCSS.

Heather Sparks

Urban Env.

8 Resources

14 Favorites

8 Resources

14 Favorites

The Basics of Coordinate Geometry

Geometry

» Unit:

Coordinate Geometry

Big Idea:Moving Geometry onto the coordinate plane. Let's investigate midpoints, slope, and distance!

Beth Menzie

Urban Env.

19 Resources

10 Favorites

19 Resources

10 Favorites

Introducing Distance on the Coordinate Plane with Geo-Bands

8th Grade Math

» Unit:

Pythagorean Theorem

Big Idea:Geoboards help students find the right triangle about diagonal line segments. The natural desire to create shapes reveals Pythagorean Thm.

Christa Lemily

Suburban Env.

16 Resources

11 Favorites

16 Resources

11 Favorites

Analyzing Distance Algebraically

8th Grade Math

» Unit:

Pythagorean Theorem

Big Idea:Some students would rather use coordinates and formulas, than measure distance on a diagram. I like to offer both as an option.

Christa Lemily

Suburban Env.

13 Resources

6 Favorites

13 Resources

6 Favorites

Applying Distance to Perimeter and Area on Coordinate Plane

8th Grade Math

» Unit:

Pythagorean Theorem

Big Idea: Applying the Pythagorean Theorem to other types of geometry questions increases the difficulty and helps make connections.

Christa Lemily

Suburban Env.

7 Resources

2 Favorites

7 Resources

2 Favorites

Playing Around with Pythagoras- Day 12

8th Grade Math

» Unit:

Playing Around with Pythagoras

Big Idea:Today, the students take a formative assessment that includes finding the missing sides of triangles, estimating non-perfect square roots, applying the Pythagorean Theorem to real world problems, and using it to find distance between two points on a coordi

Heather Sparks

Urban Env.

16 Resources

1 Favorite

16 Resources

1 Favorite

Draw a Right triangle! You can´t go wrong.

8th Grade Math

» Unit:

The Pythagorean Theorem

Big Idea:Students confront tasks that seem hard to solve, till they start drawing triangles and using the theorem.

Mauricio Beltre

Urban Env.

16 Resources

2 Favorites

16 Resources

2 Favorites

Distance in Geometry

Geometry

» Unit:

The Pythagorean Theorem

Big Idea:Understanding why the distance formula works with respect to the "change in x or y," enables students to solve novel problems requiring the measurement of distance.

Jessica Uy

Suburban Env.

14 Resources

4 Favorites

14 Resources

4 Favorites

Distances in the Coordinate Plane

Geometry

» Unit:

Geometry Foundations

Big Idea:May the formula be with you. In this lesson students wield the power of the distance formula.

Anthony Carruthers

Suburban Env.

15 Resources

35 Favorites

15 Resources

35 Favorites

The Pythagorean Theorem in Circles

Geometry

» Unit:

The Pythagorean Theorem

Big Idea:By working in pairs, students will work through and reflect on a variety of problems that require them to synthesize several geometry topics.

Jessica Uy

Suburban Env.

8 Resources

8 Resources

Round Robin Review (Unit 9/L1-7)

8th Grade Math

» Unit:

The Pythagorean Theorem

Big Idea:Tackling questions in Round Robin fashion is a great way to review and practice for standardized exams.

Mauricio Beltre

Urban Env.

13 Resources

2 Favorites

13 Resources

2 Favorites

8.G.B.6

Explain a proof of the Pythagorean Theorem and its converse.

8.G.B.7

Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.

8.G.B.8

Apply the Pythagorean Theorem to find the distance between two points in a coordinate system.