How to Add Integers Using the Number Line

There are several methods that can be used in adding integers. One of this methods is to use the number line. If you can see the pattern in this method, it is easier to see the sign of the sum of two signed numbers even before you add them. To be able to use this […]
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Are all objects with irrational lengths measureable?

I was deleting old emails a while ago and I came across with questions from some students reading my blog.  I have answered quite a number of questions from middle school and high school students via Email and Facebook since this blog started. I think some are worth publishing here, so I’ll probably post one […]
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