Solve three challenging problems that apply properties of inscribed shapes to find an arc length or a missing angle.

Solve two challenging problems that apply the inscribed angle theorem to find an arc measure or an arc length.

In this exercise, students practice using the Pythagorean Theorem in word problems. Students receive immediate feedback and have the opportunity to watch a video, get hints, or try questions repeatedly.

This site offers a problem and solution to finding all possible slopes for a line tangent to a circle given a particular equation of a circle. Could be an interesting challenge for students.

This animated video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to use fractions to compare the spring weight of a hedgehog with its weight just before hibernation....

This InterMath site gives a description of a probability outcome along with an example involving a six sided die. Be sure to follow the links to related terms, challenging problems, more information, and the interactive check point...

Of all the academic disciplines taught in middle and high school, the one we least expect to entail reading extended texts is in mathematics, but math texts present special literacy problems and challenges for young readers.

Investigate some of the mathematical challenges Boston engineers had to deal with during the Central Artery Tunnel Project (the "Big Dig"). This video focuses on the irregular shape of the casting basin and the volume calculations...