2 X 2-digit Multiplication

We are currently working hard on learning and practicing the process of multiplying up to 4 digits by 1 digit and 2 digits by 2 digits.  Just learning how to use the “old school” algorithm to solve the problem is no longer enough.  The kids have to be able to explain the process of why that “old school” algorithm works.  I’ve posted short video clips that help to show the multiplication process and what we are expecting the kids to understand and do.  Of course, it is extremely important that the kids learn and memorize their basic multiplication facts!

Multiplication with base ten blocks/area models:

 

“Grid /Window/Box” Method of multiplying 2-digit by 2-digit numbers:

The Process of Multiplication

Before the Thanksgiving holidays, we began reviewing the process of multiplying 2-digit numbers by 1-digit numbers.  We viewed the videos below to help us understand how we use the values of the digits to multiply.  Ask your child to teach you how to do this type of multiplication.  If he/she can teach it to you, then you  know he/she has learned it!

Week of Nov. 13-17

  • Book orders are due tomorrow (Tues., Nov. 14).  Remember that you may order online using a credit card, or you may send the order form with exact change back to school.
  • Fundraiser items will be delivered to the school on Thursday, Nov. 16.  If your child sold many items, you will need to make arrangements to pick up the items.
  • The Party Bus ride/lunch will be Thursday for those students who sold at least 15 items.

Week of Oct. 2-6

  • Please continue to collect Sonic code stickers and vote daily for my project Engage Me! on Sonic’s Limeadesforlearning.com!  Donations may also be made toward the project through Donor’sChoose.org.

  • Big Kahuna fundraiser continues through Oct. 12.

  • Early dismissal on Wednesday, Oct. 4, at 12:00 for teacher PLC training.

  • No pep rally this week.

  • We are still seeking volunteers to come speak to us on Tuesday, October 24, for our Career Day.  Come share your expertise and how you use math in your job!  Be an inspiration to our future generation!