This site provides detailed information on the Chinese invention of block printing. Includes an image of the carved wood that was used in early Chinese printing.

This exercise displays the molecular orbitals for a few small molecules and examines how to classify each.

Explore what the relationship the radius has to the area of a circle. Click the instructions to learn how to use this interactive resource and select"Exploration" for more ideas.

In this lesson plan, students explore circumference and diameter by creating an abstract design with circles. Media resources and teacher materials are included.

This site explains why the numbers 0, 1, -1, e, and pi are more famous than other numbers.

Circle Geometry math for kids contains information for students to learn about terms radius, diameter, circumference, chord, and pi.

This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V and circumference C. It will also give the answers for volume, surface area, and circumference...

This online calculator will calculate the various properties of a hemisphere given any 1 known variable. It also calculates the variables in terms of PI.

This online calculator will calculate the various properties of a cylinder given 2 known values. It will also calculate those properties in terms of PI.

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...

A physics usenet listing of frequently asked questions relating to relativity, answered by a number of scientists. Administrivia and Reference, Speed of Light, Special Relativity, General Relativity and Cosmology, Black Holes. Loads of...

This basic website will give you lots of information about circles. There are also some questions to test your circle knowledge.

In this module you will learn about rational and irrational numbers.

[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given its radius or diameter. Students examine guided notes, review guided practice, watch instructional videos and...

[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given the radius or the diameter. Students examine guided notes, review guided practice, watch instructional videos...

[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given the radius or the diameter. Students examine guided notes, review guided practice, watch instructional videos...

[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate the area of circles and the area of sectors of circles by using given information and formulas. Students examine guided notes,...

[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate a circle's circumference. Students examine guided notes, review guided practice, watch instructional videos and attempt practice...

The University of St. Andrews offers a biography of Zu Chongzhi, a Chinese astronomer and mathematician.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to calculate the circumference of a circle. Students examine guided notes, review guided practice, watch instructional videos and...

[Free Registration/Login may be required to access all resource tools.] Recognize and identify irrational numbers and the set of real numbers

[Free Registration/Login may be required to access all resource tools.] Understand, identify and find equivalent forms of rational numbers

[Free Registration/Login may be required to access all resource tools.] Compare and order rational numbers on a number line and by using inequality symbols

When you are working with geometry and trigonometry, you will see a lot of Greek letters. It will be helpful to know how the names of these letters are spelled and pronounced.