Friday, December 2, 2016

Multiplication in Math

Hello Families!

I wanted to send you an update on how we are doing with 
multiplying BIG numbers in math.

This is such a big skill and an important one to master!

We have introduced 3 methods for multiplying:
  • Traditional Method (the way you and I learned!)
  • Partial Products Method
  • Lattice Method (taught in 3rd grade - most comfortable method for many)


Your child may use ANY METHOD they prefer.  
Here are some tips for each method...

Here is how partial products works:

49 X 32 =

40X30 = 1200 
40X2 = 80
9X30 = 270
9X2 = 18

Add these products together to get...1568

As for lattice....there are boxes and lines involved.
IF your child is able to draw these lines and boxes carefully and independently, 
that may be a good method for him/her.

I will send home a "cheat sheet" of each method today.
Please consider having a talk with your child about the method they prefer.

From this point forward, I will not require your child to use a particular
method -- they get to choose!

Thank you for your help!

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