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Welcome to our math class blog. You will find a mixture of student and teacher explanations of different concepts we had in class.

Wednesday, October 7, 2009

Estimating square root word problems

You may have word problems involving estimating square roots. They may appear as a question in which you are estimating the length of the side of a square with a given area. For example, suppose you are asked the following " estimate the side length of a square if the area of that square is 14 square centimeters." In this case you should determine the perfect squares that this number falls between, then use that to estimate the square root of 14. First, 14 is between 9 and 16. So the square root of 14 is a number between 3 and 4. If you guess that this number is 3.7, you should multiply this number times itself to see if that product is close to 14.


The homework tonight is pg. 150 numbers 10 to 24 even. Also, do not forget study island.

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