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### We found 396 resources with the concept radius

Videos (Over 2 Million Educational Videos Available)

4:18

Thomas Jefferson - Author of The...

5:25

Language and Creativity

8:55

The Circulatory System Part 1: The Heart

Other Resource Types
(396)

Lesson Planet

#### Krista King Math: Pre-Calculus

A precalculus playlist of 29-videos demonstrates the processes and includes step-by-step explanations of functions. The collection includes inverse trig functions, polar coordinates, graphing polar curves, parametric curves, analytic...

Lesson Planet

#### Mathematics Assessment Project: Tests for College & Career Readiness - High School

A collection of six tests are designed to assess the College and Career Readiness of high school algebra I, algebra II, geometry, and statics and probability learners. Each assessment includes the test form and scoring and comes in 40,...

Lesson Planet

#### High School Balanced Packet 2 Assessment Tasks

Good assessments can be hard to find and difficult to formulate. Designed as a collection of mathematics assessment tasks, the 20 resources in this packet can also be used as lesson openers, a review, or extra practice. The open-ended...

Lesson Planet

#### Math Antics Geometry Video Lessons

The point of this collection of 12 videos is to introduce learners to three basic parts of geometry—points, lines, and planes. The presenter provides definitions, shows how to classify shapes, provides examples, and shows how to use...

Lesson Planet

#### Grade 7, Claim 1: Concepts and Procedures Item Slide Shows

Prepare seventh graders for end-of-year assessments with a collection of nine resources packed with teacher and student-friendly slides featuring problems that address the A-I competencies. Questions are modeled after Smarter Balanced...

Lesson Planet

#### Circles

Don't circle around the topic, but get right to the center with tons of practice regarding circles in geometry. The note-incorporated worksheet provides guided practice through many topics such as central angles, inscribed polygons and...

Lesson Planet

#### Atomic Structure: Periodic Table

The fifth lesson of seven in the series outlines an in-depth analysis of the periodic table. After direct instruction, pupils take turns practicing in the group before beginning independent study. The assessments include a quiz and an...

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

#### 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 3 Section 2 Part 3

Math speeds along in this video, which takes students through problems 11-15 on the practice SAT. Sal takes care to show students more than one possible way to solve several problems, allowing them to make the choice based on their own...

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 4 Section 4 Part 1

The next section of the practice SAT from The Official SAT Study Guide (page 594) covers simple linear equations and geometric figures. Students will appreciate Sal's quick problem solving and thought process, which is easy to understand...

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 3 Section 8 Part 2

Problems 7-9 involve exponents, inequalities, and geometric figures (diameter and radius), all of which Sal explores eagerly. After misreading one problem, he takes care to correct his mistake, showing students how important it is to...

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 6 Section 7 Part 6

Sal has a good time solving problem 20 on page 738, allowing students to look past the "trickiness" of SAT problems and, possibly, to enjoy solving the problem. He takes them through each step of the problem, taking care to point out the...

Lesson Planet

#### Discovering Pi/Welcome to Pi Day

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

Lesson Planet

#### Pizza Crusts

Help Robbie figure out what pizza shape he should choose to get the greatest amount of stuffed crust. This two-page worksheet gives your young mathematicians a chance to find areas and perimeters of rectangular and circular shapes in a...

Lesson Planet

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

Math students who have a hard time with the speed of their problem solving will benefit from this video. Sal tackles increasingly complicated geometry and algebra problems in a way that shows them how to find the correct answer - quickly.

Lesson Planet

#### Designing Euclid’s Playground

Create a geometric playground. Pupils work through a performance task to demonstrate their ability to use geometric concepts to solve everyday problems. The accompanying engineering design lessons show teachers how the assessment works...

Lesson Planet

#### Outward Bound

Just how far can I see? The short assessment question uses the Pythagorean Theorem to find the distance to the horizon from a given altitude. Scholars use the relationship of a tangent segment and the radius of a circle to find the...

Lesson Planet

#### Hexagon Inscribed Within a Circle

Mark off the length of the radius around the circle. Using a compass, the presenter shows how to construct a regular hexagon in a circle. Pupils see how triangles formed in the hexagon are equilateral, allowing for the construction to...