(one day break from the "Week in the Life of Legoboy - Montessori Homeschooling" series to present this work he did LAST week. And give me some time to catch up on including photos in the blog posts of his week!)
|First row of multiplication.|
|Second row of multiplication.|
|Just before exchanging the final answer.|
We have slid the answer diagonally across equivalent squares,
not changing the value.
|He took this one for a close-up for you all.|
We can read the whole numbers down the side, then decimals across the bottom
(unit in the corner).
How NOT to do the Decimal Fraction Checkerboard Multiplication:
Past Work on Decimal Fractions:
This is why it is *so* important to understand the depth of each material before making changes. Modifications can certainly be made, but not to the core concepts!