Yesterday we learned a bit more about finding the square roots of numbers. Mr.Hamley explained it a bit better so we could understand it a lot better.
Example: to find the square root of 72 you need to find the out the square root of 81 first. so the square root of 81 is 9....now, the perfect square before 72 is 64 and the square root of 64 is 8. to find the denominator for the numbers you must take the smaller perfect square number and subtract it from the higher perfect square number. ( 81-64=17) so the denominator is 17.
now to get the square root of 72 u count from 65 to 72..... so the numerator for 72 will be 8.
so the square root of 72 is....8 8/17
the next scribe will be.....Earl!
Showing posts with label squareroots. Show all posts
Showing posts with label squareroots. Show all posts
Thursday, November 09, 2006
Tuesday, November 07, 2006
Nov.7 Scribe post
Scribe post by:Melvin841
Today in 841's afternoon math class we were learning how to estimate square roots with out a calculator.We learned that you can use a fraction to estimate with the numerator and the denomorator ,while the numerator being the mullet also known as the extra pecies around a shape.Lots of people answered.Melissa answered alot.We also had to estimate the numbrs 1-16.We also learned that when we were estimating 1-4 Mr.Hanly said that the first fraction which was 1/1 did not count in the process so only 2-4 was counted becuse 1 did not have the same denomantor.Then we were working on 4-9 and then we were working with whole numbers and fractions. the way we were able to get number 5 as 2 1/5 was that because we didnt count number 4 in the process.Now Mr.Harbeck told us that we had to do a recipe for how to estimate a fracton or how to estimate fractions now we have to do 10-16 but with a group and we have to learn the recipe.
^_^ >>>Next Scribe is Dakota<<< ^_^
Scibe Post (Morning)
This morning in class, we looked at finding sqaure roots by using our perfect square chart without a calculator.
To find the square root of 25, you just look at the chart under "Area" and find 25. Then you look at the factors. The factors of 25 are 5 x 5.
We also had to copy some questions from the overhead:
The numbers we had to find were:
25, 81, 64, 225, 169, 784, 625, 49, 594, 121, 765, 429, 654, 6, 333, 852, 199, 841
There was also a problem at the bottom that we had to solve. it was:
A warehouse has an area of 2 940m2 squared. Its divided into 15 EQUAL parts. Find the dimensions.
I chose Melvin to be the scribe for the afternoon.
Monday, November 06, 2006
Scribe Post
Today in class we did some things like we learnerd how to do
square routes on the callulator and we got our tests back and corrected
them. We
find out square routes on the calluculator by typing in a
number
and looking for the square route button.
Please any one can leavemy scribe post.
some comments on
The next scribe is MaryGrace. <33>
Friday's Scribe Post =)
This is what I remembered from Friday. If I forgot something, please leave a comment!
At the beginning of class, we reviewed our homework (which i forgot to do =P) from the previous day about which numbers were perfect squares from 6. 8. 9. 10. It was 9 because a square has 4 equal sides. The only perfect square you can make using 9 tiles is a 3x3 square. 9 is the only number out of those 4 that has the same number times the same number (3x3). 6 is a rectangle (2x3 or 1x6), so is 8 (2x5 or 1x8) and 10 (1x10 or 2x5). 9 is a PERFECT SQUARE. In case you never knew this, you can make SQUARES with the rest of the numbers too! How you ask (maybe you didn't but, oh well)? Make MULLETS. Picture that you have 9 tiles infront of you. Mr. Harbeck asks you to make a square with an area of 8. You know very well that you can't make a square with 8, only a RECTANGLE. So he gives you something to break up the tile and sprinkle it around the top and right edges (refer to diagram). Then we looked over the factor, exponent, area chart thingy up to 30. *I'm too lazy to post it up. I need to work on Lit. Resp.* For the rest of the class, he (Mr. Hanly?) taught us how to do the squares. If you don't get this then you won't get square roots and square roots w/ decimals. That's all =) Wait! Look below for the next SCRIBE!
Next Scribe: Lisa >^_^)>
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