### We found 300 resources with the keyterm pythagorean theorem

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Lesson Planet

#### Two Triangles' Area

Need an activity for teaching the Pythagorean Theorem? Geometry juniors apply the Pythagorean theorem to two triangles to determine a final calculation.

Lesson Planet

#### A Rectangle in the Coordinate Plane

A quadrilateral is drawn on the coordinate plane, and eighth grade geometers find the length of each side and the diagonals by applying the Pythagorean theorem.

Lesson Planet

#### Pythagorean Theorem All

As the second in a series on the Pythagorean Theorem, this lecture delves into some more difficult problems. Primarily, it examines the process for finding the value of a hypotenuse. It is particularly helpful because the example problem...

Lesson Planet

#### 30-60-90 Triangles All

Using this video, which is the fourth in a series, the instructor continues a discussion involving the Pythagorean theorem. This video focuses on calculations involving right triangles with 30 and 60 degree angles.

Lesson Planet

#### Pythagorean Theorem All

Lesson Planet

#### Intro to 30-60-90 Triangles

As the fourth part of a series on the Pythagorean Theorem, Sal continues an exploration of the ways to calculate the length of sides of a right triangle using algebra. He also explores using this theorem to solve problems involving a...

Lesson Planet

#### 45-45-90 Triangles

The process for calculating values using a right triangle with angles of 45 degrees is covered in this third portion of the Pythagorean Theorem series. Here, Sal uses algebra to calculate the value of an angle. The solution to the sample...

Lesson Planet

#### Jane's TV

Jane wants a new television, but she's not sure what size to buy! Your middle schoolers can figure it out when they apply the Pythagorean theorem. Produced especially for meeting Common Core standards in geometry, this activity appeals...

Lesson Planet

#### Intro to the Trigonometric Ratios

This video introduces the basics of trigonometry. It starts by defining a right triangle and showing two different examples of finding the ratios of sine, cosine, and tangent using the SOH-CAH-TOA mnemonic. This resource could be used as...

Lesson Planet

#### Pythagorean Theorem

Crossing into the realm of geometry with this video, Sal introduces the Pythagorean Theorem to viewers. He uses several examples (and right triangles) to illustrate the uses and application of the Pythagorean Theorem.

Lesson Planet

#### SAT Prep: Test 5 Section 3 Part 1

Sal starts a new set of practice SAT problems in this video, starting on page 652 of The Official SAT Study Guide. Problems involve fractions and ratios, simplifying equations, and finding the perimeter of given coordinates on a plane.

Lesson Planet

#### SAT Prep: Test 8 Section 5 Part 4

If your math students are having a hard time with graphing and slopes, this video could be a great resource as they prepare for the SAT. Sal takes care in explaining his thought process, making sure where to note different strategies to...

Lesson Planet

#### SAT Prep: Test 6 Section 3 Part 3

Continuing problem 7 from the previous video, Sal takes students through what he describes as "a common SAT problem" involving geometric lines and figures. Additional problems deal with sequences, cross-multiplication, and measuring...

Lesson Planet

#### SAT Prep: Test 5 Section 9 Part 4

Graphing skills are a focus of this video, making it ideal for students who have a hard time using slopes and functions. Additional problems involve visualization, geometric figures, and algebraic factoring.

Lesson Planet

#### Distance Formula

Explaining the distance formula as "an application of the Pythagorean Theorem" might relieve some of your young mathematicians who are scratching their head at all the new concepts. Sal demonstrates how to take the distance between any...

Lesson Planet

#### SAT Prep: Test 3 Section 4 Part 2

Sal explains how helping his young cousins with their math skills inspired him to make this series of videos, so he can help a bunch of people pass the SAT. In this video, he covers exponents, quadratics, and parabolas in problems 5-9 on...

Lesson Planet

#### SAT Prep: Test 8 Section 5 Part 3

Have a blast with Sal as he solves these SAT practice questions! He enjoys himself with visualization and combination problems, showing not only how to solve the problems but to see math as a riddle rather than a threat.

Lesson Planet

#### SAT Prep: Test 6 Section 3 Part 1

With the beginning of another practice SAT session from The Official SAT Study Guide, Sal plows through problems 1-4 on page 716. He emphasizes the importance of narrowing down potential answers in a multiple-choice problem, as well as...

Lesson Planet

#### SAT Prep: Test 2 Section 9 Part 4

Price increases in real life aren't enjoyable, but Sal's enthusiasm and easygoing explanation makes the question on increasing prices on the practice SAT fun! Showing students how to easily work through problems involving the Pythagorean...

Lesson Planet

#### SAT Prep: Test 1 Section 6 Part 1

Here, Sal begins section 6 on page 407 of The Official SAT Study Guide, focusing on problems 1-4 in this video. He clarifies that SAT questions are "tricky, but really fast" problems that shouldn't take a lot of time to solve. To prove...

Lesson Planet

#### Proof of the Pythagorean Theorem Using Transformations

Middle and high schoolers construct a triangle using Cabri Jr. They construct squares on each of the legs and hypotenuse of the triangle. Pupils show that the area of the squares on the leg equal the area of the square on the hypotenuse.

Lesson Planet

#### CAHSEE Practice: Problems 38-42

Sal shows your students how to thoroughly and effectively read and solve math problems on the CAHSEE (and other standardized tests) in this engaging video. From masters of geometry to students who struggle with basic math skills, these...

Lesson Planet

#### Stay in Shape

Using their knowledge of right triangles, pupils find out how far a ship is from a light house. Class members determine how far around the world a ship would be sailing at a constant speed.

Lesson Planet

#### The Pythagorean Theorem

What special relationship exists among the sides of a right triangle? Explore this relationship using a computer applet, cut-and-paste activity, and video tutorial to develop the Pythagorean Theorem and its significance to right triangles.