In this word problem learning exercise, students complete ten multiple choice word problems by choosing the correct mathematical operation. This is an interactive learning exercise.

In this algebra learning exercise, students rewrite word problems using algebraic symbols and solve for the related rates. There are 10 word problems involving derivatives and rates.

In this algebra worksheet, students manipulate integers to add, subtract, multiply and divide using order of operation. They rewrite word problems and solve for the unknown. There are 24 questions with an answer key.

Sixth graders examine the causes of the stock market crash of 1929.  In this integrated math/history unit on the stock market, 6th graders study, research, and read stocks, visit a local bank, and create a PowerPoint to show the...

In this problem solving tools worksheet, students complete a set of 10 multiple choice questions. Worksheet is labeled as a "pre test." 

Students explore the concept of perimeter. In this perimeter lesson plan, students discuss how to find perimeter of various shapes. Students use the Perimeter Explorer applet to find the perimeter of various shapes.

Students observe the pattern of the inside of a mushroom and write down what they see. In this mushroom lesson plan, students cut a mushroom at the top and draw what they see in the spore of the mushroom.

In this angles worksheet, students complete multiple choice questions about the shape and number of angles. Students complete 10 questions total.

Students work together to complete an experiment calculating the amount of board footage in a tree. They record their data and answer questions at the end of the lesson. They create their own hypothesis as well.

Ninth graders explain how wind can produce electricity. In this geometry lesson, 9th graders construct their own pin wheel turbine and calculate its power. They discuss the pros and cons of using wind generator.

Get independent practice working with finding the circumference, area and radius of circles. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.

Explore everything about circles. Learn various parts of a circle like a diameter, radius, circumference, circles chord, tangent circles, major arc, segment, sector, and discover other interesting aspects of it. Try your hand at solving...

[Free Registration/Login may be required to access all resource tools.] Find the radius or diameter of a circle given its area.

A basic review of circles and how to calculate the circumference, radius, diameter, and area. Includes practice questions.

This reference tool explores the radius of a circle. Provides definitions, solved examples, and practice questions with answers.

This site has many useful formulas and examples relating to circles, including related definitions, circumference of a circle, area of a circle, length of a circular arc, area of a circular sector, equation of a circle in cartesian...

Use this circle calculator to find the area, circumference, radius, or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.

Discusses the radius, diameter, circumference, and area of a circle.

Find the area of a circle given its radius, diameter, or circumference. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This mini-lesson explores the area of a circle. Provides a definition, examples, and practice questions with answers.

This WebMath site will assist with finding the radius, diameter, circumference, and area of a circle.

A complete reference guide to diameters. It provides definitions, examples, and interactive activities that enhance further explanation. Includes links to related topics.

This resource provides two levels of multiple choice questions to review the parts of a circle as well as area and perimeter.

[Free Registration/Login may be required to access all resource tools.] Find the radius or diameter of a circle given the area of the circle