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### We found 138 resources with the keyterm pi

Videos (Over 2 Million Educational Videos Available)

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Language and Creativity

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Phonics Song 2 (new version)

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Thomas Jefferson - Author of The...

Other Resource Types
(138)

Lesson Planet

#### Circles: Radius, Diameter and Circumference

Fascinating discussion regarding the origin of Pi accompanies a detailed explanation of how to find the circumference of a circle. Since this is the first installment in a series on circles, the concept of circumference is separated into...

Lesson Planet

#### Area of a Circle

A second installment in a series on circles, this production demonstrates the process of finding the area of a circle. As an introductory tool, it is effective. However, it does not explain the reasoning behind the formula because that...

Lesson Planet

#### Tau vs. PI

Whatï¿½s wrong with Pi? In this video, Sal considers the question whether the number Tau (_), is a better number to use in our trigonometric model then the traditional PI (ï¿½). First, Sal reviews the definition of Pi, the trigonometric...

Lesson Planet

#### SAT Prep: Test 1 Section 3 Part 4

Pushing through to problems 11-12 on page 398 of The Official SAT Study Guide, Sal goes into comprehensive detail on each problem. Problem 11 involves geometry, including the function of pi, and problem 12 involves non-constant slopes....

Lesson Planet

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

Sal takes a little more time to explain the next two problems as he nears the end of this practice SAT session. He spends about 5 minutes drawing, solving, and discussing problem 17 (geometric line segments) and the next 5 minutes on...

Lesson Planet

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

Taking time to thoroughly explain and work through problems 15-16, Sal models careful reading and problem solving. He begins problem 17 but continues it in the next video.

Lesson Planet

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

Problem 15 on the practice SAT (page 657) prompts students to solve a word problem using a number of given constraints. Additional problems involve finding the radius of a circle (given the radius of a smaller circle) and prime...

Lesson Planet

#### SAT Prep: Test 6 Section 7 Part 2

Helping students realize the common missteps in solving the average SAT problem, Sal creates a lens through which students can clearly see the correct and incorrect approach to each type of problem. He points out what a student might...

Lesson Planet

#### SAT Prep: Test 8 Section 2 Part 1

Test eight from The Official SAT Study Guide includes eighteen problems, the first four of which are featured in this video. Basic algebraic expressions, linear equations, tangent circles, and coordinates on a plane test algebra and...

Lesson Planet

#### SAT Prep: Test 6 Section 7 Part 5

On the home stretch of this practice session, Sal completes problems 18 and 19 on page 738 of The Official SAT Study Guide. He begins problem 20, but chooses to finish it in the next video instead of rushing the answer. As always, Sal's...

Lesson Planet

#### SAT Prep: Test 2 Section 3 Part 5

Sal takes viewers into the home stretch of this practice test session from The Official SAT Study Guide. Problems 17-18 are algebraic equations, while problem 19 focuses on area in a given figure (with the use of pi).

Lesson Planet

#### SAT Prep: Test 7 Section 5 Part 2

Complicated word problems and expressions are no match for Sal, and after watching this series, they will be no match for your students either! Sal deftly handles problems involving algebraic equations, averages, and circumference.

Lesson Planet

#### Test 2 Section 2 Part 5

Both algebra and geometry problems are featured in this SAT practice video. Students who have a hard time transitioning between skills on tests (average mean, then diameters and pi, then positive integers) would benefit from Sal's deft...

Lesson Planet

#### SAT Prep: Test 5 Section 7 Part 5

Geometry problems on the SAT are often the most difficult for students to solve, let alone master. Focusing on several geometry-related skills (as well a few algebra problems), Sal makes this lesson a valuable resource for viewers who...

Lesson Planet

#### Discovering Pi/Welcome to Pi Day

High schoolers explore pi. In this circle measurement lesson, students define and identify radius, diameter, circumference, and perimeter. High schoolers work in groups to measure several plastic lids and record their findings. Students...

Lesson Planet

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

Geometry and algebra are equally represented in this video, which covers problems 10-14 on the practice SAT. As always, Sal is the expert of quick, efficient ways to solve problems - especially helpful for students who have a difficulty...

Lesson Planet

#### Circles in Geometry

Students figure the diameter and circumference of a circle. In this circles lesson, students break into small groups and work together to find the answers then compare with peer groups. Students then make human circles and using string...

Lesson Planet

#### Discovering the Area Formula for Circles—Apple Pi

Need an activity that brings your class' understanding of the area formula full circle? The second installment in a two-part series involving geometric calculations further develops the young mathematician's measurement, approximation,...

Lesson Planet

#### Pi Notebooking Pages

What is it about pi that is so captivating? Learners can take notes about pi and other mathematical concepts on one or all five of these different pi-themed pages.

Lesson Planet

#### Some Fascinating Properties of π

Decorate your calculus room! The properties outlined on this poster or handout focus on the more complex attributes of pi by using trigonometry and calculus to boggle the mind.

Lesson Planet

#### π Poster

What is pi? Well, this poster goes as far as it can before running out of space. Post in your room what pi actually represents and see how many numbers in the sequence your learners can remember!

Lesson Planet

#### Circumference of Circles

In this comprehensive video Duane demonstrates how to use a formula to determine the circumference of a circle. This clip is good because it shows how to determine circumference when the diameter is knows and when only the radius is known.

Lesson Planet

#### What is the Formula for the Volume of a Sphere?

The formula of a sphere is related to the formula of a cylinder? How? Oh, radius and pi. Watch this video and observe how the instructor illustrates just how these two formulas are connected. Then plug in the known values and solve this...

Lesson Planet

#### How Do You Find the Lateral and Surface Areas of a Cone?

The lateral surface area of a cone. Hmmm, what does that mean? Oh, it means the part you see if the cone was sitting on a flat surface, so it does not include the base. But if you want to include the base then it would be finding the...