|Image from Frugal Fun for Boys|
The LEGO 3-D Multiplication Graph
This fun way to teach multiplication is a fantastic addition to your math teaching arsenal. The LEGO 3-D Multiplication Graph is perfect for children who like to learn with their hands or through observation. It’s also great for most any child in bringing home these concepts in addition to other math learning activities. We recommend this method for any child having difficulty attempting to learn the concept of multiplication in a traditional manner.
Concepts this activity helps to teach include: multiplication, division, grouping and the commutative property.
- Standard base plate
- 75 red 1 x 1 bricks
- 60 blue 1 x 1 bricks
- 45 yellow 1 x 1 bricks
- 30 orange 1 x 1 bricks
- 15 green 1 x 1 bricks
- Label your baseplate by taping paper beneath the plate and writing the numbers you're multiplying. In this case, we'll be covering (1 to 5) x 5. Skip a row of studs between each number. [steal pic]
- Explain to your child or student how to build out the rows in the graph. The numbers along the bottom show how many groups to build. The numbers along the left show how many numbers will be in each group.
- The first vertical row will be all one color (red). It contains a single group for each number 1-5.
- The second vertical row will have two colors and contain two groups for each number 1-5. And so on.
- Ask questions and make observations as you go along. For instance, the "tower" sizes on the second vertical row are: 2, 4, 6, 8, 10.
What other observations can you make? Build out the rest of the graph, and view the final result from different angles. Solicit observations from the participant(s).
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