This article shares the launch of a new online education game designed to teach five to eight year olds math skills.
Really awesome website for 6th grade mathematics - think James Bond solving math problems. Pretty hip compared to other math sites!
A nice site with videos, games, puzzles, and math help for kids.
There's a lot of stuff in here. Join our community! You can get a nice tour in the Getting Started section and also by viewing Navigating Math Tools by Bethany Hudnutt.
Using only elementary geometry, determine angle x. Provide a step-by-step proof.
You may only use elementary geometry, such as the fact that the angles of a triangle add up to 180 degrees and the basic congruent triangle rules (side-angle-side, etc.). You may not use more advanced trigonomery, such as the law of sines, the law of cosines, etc. There is a review of elementary geometry below.
Use SAGE for studying a huge range of mathematics, including algebra, calculus, elementary to very advanced number theory, cryptography, numerical computation, commutative algebra, group theory, combinatorics, graph theory, and exact linear algebra.
These are some educational java applets written by Paul Falstad to help visualize various concepts in math, physics, and engineering. You should be able to view them with any Java-capable browser.
The Adventures of Jasper Woodbury consists of 12 videodisc-based adventures (plus video based analogs, extensions and teaching tips) that focus on mathematical problem finding and problem solving. Each adventure is designed from the perspective of the standards recommended by the National Council of Teachers of Mathematics (NCTM). In particular, each adventure provides multiple opportunities for problem solving, reasoning, communication and making connections to other areas such as science, social studies, literature and history (NCTM, 1989; 1991)