University of Cambridge
University of Cambridge: Nrich: 6 Beads
Use the diagram on this one page website to solve the problem. There are teacher notes and the solution is only a click away.
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Teachers Choice: Simplifying Expressions
Learn about simplifying algebraic expressions at this complete "how to" website. Detailed descriptions with examples and a downloadable file that let's you practice your skills.
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Mathpower: Elementary Algebra Assignments
Test your algebra aptitude at this colorful website filled with algebra assignments for upper elementary and middle school students. Assignments explore algebra concepts using addition, subtraction, multiplication, fractions, division,...
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Math Stories: Make a Table
At this one page site you can work through step by step a sample problem that illustrates the problem solving strategy for "Make a table." The answer is right there to help you check your thinking.
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Math Stories: Make a List
At this one page site you can work through step by step a sample problem that illustrates the problem solving strategy for "Make a list." The answer is right there to help you check your thinking.
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Math Stories: Working Backwards
At this one page site you can work through step by step a sample problem that illustrates the problem solving strategy for "Working backwards." The answer is right there to help you check your thinking.
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Math Stories: Write a Number Sentence
At this one page site you can work through step by step a sample problem that illustrates the problem solving strategy for "Write a number sentence." The answer is right there to help you check your thinking.