Friday, January 31, 2014

Patterns

Third grade mathematicians have been studying the algebraic concept of looking for patterns in numbers and pictures while practicing simple computations. The number patterns are functions. That is, for every input there is exactly one output.

Find a Rule (FAR) cards were used as a way to begin the study of functions. These cards have pictures or numbers on the fronts of the cards that relate to pictures or numbers on the backs of the cards. The rule for the FAR cards shown below is "multiply the numbers on the front to get the number on the back."



Your child was asked to figure out the pattern, and then complete cards that follow the same pattern. For example:



Your child also used square tile to identify and extend patterns in geometry.

How many tiles will be in the next figure?



The pattern is increasing by one, so the next figure would have 6 tiles.

Most recently, third grade mathematicians have been finding patterns that use division. We remembered that division is actually multiplication backwards. When you divide you are simply breaking down a larger number into equal groups. We consistently remind the children that "equal groups" is the key!

You can use these models to help your child practice number patterns. You can also have fun with the game "Find a Rule" that was sent home earlier this week.

Have fun!

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