Entries "October 2006":
Tuesday, October 24, 2006
Scribe Post #1
Learning Target
Estimate sums and differences using decimals
Example Problem
12.49 + 9.86
12 + 10 = 22
Lesson
To estimate a sum, you first need to round each decimal to the nearest whole number being if 5 and up, you round up, and 4 and below, you roud down. Now all you do is just add the two or more numbers to get your sum.
Scribe Post #2
Learning Target
Use strategies to develop formulas for finding the circumfrence of circles.
In class, we figured out some of the strategies to develop formulas for finding the circumfrence of circles. We found out how to find the circumfrence of a circle with only knowing the diameter, and we learned that the circumfrence, divided by the diameter, equals pi, or 3.14. We also solved a little bit of problems for finding the circumfrence.
Example Problem
Lesson
The circumfrence divided by the diameter has the qoutient of pi, or 3.14. Also to find the circumfrence of a cirlce, you need to multiply the diameter by pi.