## Wednesday, October 27, 2010

### Karen's Scribe Post

Prime Factorization is also a way
to find out if a square is perfect or not.

Square root is the inverse (opposite) of squaring, for example:
5² = 5x5 or 25
√25 is 5 times itself has a product of 25
5x5=21 || √25=5

Yesterday's Homework
Estimating in Fractions
1: 1
√2: 1 1/3
√3: 1 2/3
√4: 1 3/3 = 2
√5: 2 1/5
√6: 2 2/5
√7: 2 3/5
√8: 2 4/5
√9: 2 5/5 = 3
√10: 3 1/7 ...

See any patterns? The denominator is how many spaces are in between the 2 closest perfect squares. The numerator is how many spaces the square root number took going to the left.

√39 $\approx \!\,$ 6 3/13;6.24 x 6.24
√200 $\approx \!\,$ 14 4/29; 14.14 x 14.14
√850 $\approx \!\,$ 841 10/59; 29.15 x 29.15

Today's Homework
(This part gets confusing but I'll try to explain it as good as I can)
- make another number line with 1 to 25 square root numbers with one and a half (1 1/2) intervals
- write the fraction x fraction = 1-25
- on the bottom, write the decimal that is almost equal to 1, 2, 3, ... 25
- lastly highlight or box the perfect square numbers
* Don't forget to use ' $\approx \!\,$ ' the almost equal symbol.

1. Good job!!!Next time you should put colors on the letters. But you did good.

2. Good Job Karen! (: , I liked how you organized your post , However next time try to add a little color variation to your post! . Other than that you did A very good scribe !(:

3. Great job Karen! You explained everything very well. You're pictures were understandable and easy to follow. Keep up the good work!

4. Good Job karen! I like that your post is very neat. Your pictures are understandable. Anyways keep up the good work.

5. Good Job Karen!! I like how your post has picture. Next time check your answer to make it right. Overall good job.

6. Great job Karen! I like how your pictures are very neat and that they explain whats happening well. However, try to check if your answers are correct. I also didn't understand your explanation on how to get the numerator. But overall good job! (Y)

7. Good job, Karen.
Your post was really good. I liked the pictures.
You explained the definitions really well. Keep it up !