Hi, what do you want to do?
University of Cambridge
University of Cambridge: Nrich: Christmas Shopping
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Pumpkin Pie Problem
On this one page website sharpen your logic, graphing and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Rectangle Tangle
On this one page website sharpen your logic and fractional part skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Happy Halving
On this one page website expand your logic, symmetry and pattern recognition knowledge while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Making Squares
On this one page website sharpen your logic, spatial sense, and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Molecule Shapes
Explore molecule shapes by building molecules in 3D. How does molecule shape change with different numbers of bonds and electron pairs? Find out by adding single, double or triple bonds and lone pairs to the central atom. Then, compare...
The Book Report
Kids reads.com: The Fudge Books by Judy Blume
This comprehensive site features activities, reviews, and more for Judy Blume's "The Fudge Books." Come and explore this educational gold mine.
English Plus+
English Plus: Comparison Problems
A list of five common problems writers face when using comparisons. Each problem is explained, the wrong usage is demonstrated, and the correct usage is demonstrated.
Khan Academy
Khan Academy: Units
In this exercise, students solve word problems that involve using different units. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.