Warning! Estimating Square Roots Zone

• First of all, we read through page 95-97
• On page 95 we looked at the picture that looked a little like this:

To figure it out you must find the square roots of 36m² and 49². The square root of 36m² is 6 and the square root of 49m² is 7. The square root of the middle mat has to be somewhere in between 6 & 7.

• On page 96 we looked at example #1. Felicity wants to build a pool. The area is 7 m². So to figure it out you must find the higher and lower square roots. (2²= 4 and 3²= 9) and 7 is closer to 9 so it would be closer to 3 than 2.



• We then, after lots of discussion, did show you know on the botttom of page 96 after looking at the solution to example #1.



• If your having trouble; look here:

What's the square root of 23?

1. make a number line



2. find the higher square root and/or perfect square and the lower square root and/or perfect square



3. find halfway ( if you need to write all numbers between the perfect square and cross off 1 by 1)



4. and then make an reasonable estimate

• Then we looked at example #2 on page 97


• We discussed example #2 (Which was finding all possible numbers with a square root between 2 square roots)

HOMEWORK:

• Yesterday's homework SHOULD be done
• Page 1 on the Handout we got today!

DUE TOMORROW!!