9th Grade Math Practice Questions to test addition, multiplication, word-problem skills, and basic algebraic skills. Includes answers and explanations. From the Proficiency Building Activities of the NASA Lewis Research...

An investigation of the problem: Consider a plane, ruled with equidistant parallel lines, where the distance between the lines is D. A needle of length L is tossed onto the plane. What is the probability that the needle...

This activity, from the Real World Learning Objects Resource Library, teaches students to "collect data from the U.S. Geological Survey website, construct a frequency distribution and histogram, calculate descriptive...

Shodor is a national resource for computational science education, sponsored by the NSDL and CSERD. In order to help students better comprehend and learn the mathematical components of computer science, Shodor has...

Created by Alexander Bogomolny, this site is a clearinghouse of fun and engaging mathematics exercises, puzzles, and other such activities that teachers can utilize in their classrooms. Of course, students might happen...