# Mrs. Ayers' Math News

## Back To School! September 9th, 2017

## OFF TO A GREAT START!

## HEADPHONES or EAR BUDs NEEDED ASAP FOR EVERY CHILD

Students are spending time on Tenmarks in my math class and in Lexia in homeroom, which have sound to them. This is very distracting to others around them to have to listen to 23 computers talking all at the same time but saying something different.

Earbuds can be purchased for from $1-$5 at the Dollar Store. If you prefer for your child to have headphones, that is fine as well. Don't spend a lot of money on these because I can promise you that they WILL need another pair before the end of the year. They seem to always break or disappear. I speak from experience as a teacher and a mom. My daughter seems to need a new pair every other month.

## What is an ARRAY and what does it have to do with Multiplication?

We have been learning to use ARRAYS to show if a number is Prime, Composite or Square. In the process of doing this, students have learned to find FACTORS of numbers. For example, the FACTORS of 7 are (1, 7) because you can ONLY multiply 7 times itself and that makes it PRIME. Whereas the FACTORS of 6 are (1, 2, 3, 6) because you can multiply more number than just 1 and itself (1 x 6)(2 x 3) to get 6 so it is COMPOSITE. The number 4 is actually a SQUARE number because you can multiply the number 2 x2 and get 4. It forms a SQUARE when you place it in an ARRAY.

The video below should help your child to review arrays and how arrays help them solve multiplication word problems.