For clarity, we will start with a simpler example of multiplying with decimals. Check back for updates of examples increasing in difficulty. (The orange RSS button can be used to check for updates.)
Decimals
Comparing Numbers - Decimals
Comparing decimal numbers is often a stumbling point for students. The comparison is made clear with Digi-Block because of the continuity of the shape of the blocks at every magnitude. Students can clearly see which number is largest by modeling the numbers with the blocks.
Introduction to Decimal Blocks
A major strength of the Digi-Block program is that students can model both whole numbers and decimal fractions at the same time.
Division with Decimal Fractions
One way to introduce the decimal blocks is to have the students do a division problem with the blocks that leads to a remainder. Then ask the students how they could continue to divide the remainder. If the single blocks were made of smaller blocks, then those smaller blocks could be distributed. Now, show the students the tenth and hundredth blocks, so that they can divide the remainder further.


