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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

Â» 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.

Playing Around with Pythagoras- Day 11

8th Grade Math

Â» Unit:

Playing Around with Pythagoras

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

Unit Assessment

8th Grade Math

Â» Unit:

Pythagorean Theorem

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

Playing Around with Pythagoras- Day 9

8th Grade Math

Â» 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.

Day Four & Five

8th Grade Math

Â» 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.

The Basics of Coordinate Geometry

Geometry

Â» Unit:

Coordinate Geometry

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

Introducing Distance on the Coordinate Plane with Geo-Bands

8th Grade Math

Â» 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.

Analyzing Distance Algebraically

8th Grade Math

Â» 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.

Applying Distance to Perimeter and Area on Coordinate Plane

8th Grade Math

Â» Unit:

Pythagorean Theorem

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

Playing Around with Pythagoras- Day 12

8th Grade Math

Â» 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

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

8th Grade Math

Â» Unit:

The Pythagorean Theorem

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

Distance in Geometry

Geometry

Â» 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.

Distances in the Coordinate Plane

Geometry

Â» Unit:

Geometry Foundations

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

The Pythagorean Theorem in Circles

Geometry

Â» 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.

Round Robin Review (Unit 9/L1-7)

8th Grade Math

Â» Unit:

The Pythagorean Theorem

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

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.