More Than ABC is a informative, fun, creative blog dedicated to share what is going in in our classroom. Using technology, creativity, and quality materials keeps us busy! If your in my class or just a visitor, I'm glad you stopped in!

Monday, December 6, 2010

Lattice Multiplication

Coming Soon....

Multi-digit Multiplication
The math program we use encourages students to learn multiple ways to solve problems. 

One strategy that is great for many students is lattice multiplication. 

Is this the way most adults learned? No.  Is your way wrong? No.  Is this the only way we'll teach multiplying? No.  Give it a try though, multiplication can be TOUGH for many kids.  This MAY give them an advantage!

Look for the EDM math parent newsletter for tips (online with password here),
as well as ideas at this site.

Create the correct sized grid:

Start doing single multiplication facts within the grid keeping the tens on the top left, and the ones on the bottom right triangle.

Finish doing all your facts (here in purple) and the multiplying is done.

Add following the diagonals (green here) and write the answer OUTSIDE the grid/lattice.  The number is read top to bottom, left to right.  So your answer here is 784.

Making grids at home is good practice because many tests won't provide the grid for students to use.  However, check out printables here as well.  (Scroll down to Multiplication Templates)

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