5th Grade Algebra
December 3, 2008
My favorite subject is math.
A function chart, also known as an input-output chart or a T-chart is useful in math. Yesterday we learned how to find the rule for a function chart. Here’s an example:
|
A |
B |
|
5 |
15 |
|
6 |
18 |
|
7 |
21 |
|
8 |
24 |
Rule = n x 3
~Benjamin
Math Geeks
December 1, 2008
Math Multiples, an example: 2,4,6,8,10, etc. These are multiples of 2.
We call ourselves math geeks because JR, Chris, and Matt work on math at the back table every day during snack time. We do our math homework, and we help each other with questions and problems. We have been doing the math geeks for about three weeks.
We are learning about multiples as shown above. JR and Chris are going to share most of what we’ve learned so far about multiples and properties. First we are going to tell you about the multiples. A multiple is the product of a given whole number times any other whole number.
3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, and 36. These are multiples of 3.
There are special properties in math. They are called the Commutative Property (you can change the order of the factors without changing the product), the Associative Property (you can change the grouping of factors without changing the product), the Zero Property (any number times 0 equals 0), and the Property of One (any number times 1 equals that number).
This is algebra. 39,000 X 4 = n
You’ll figure it out! See you next time from the math geeks.
~JR and Chris
