When students can match 1/4 with 25% with .25, you know they have some understanding of the value of each.
When they go on to the much more difficult matching of 79/1000 with 7.9% and .079, you know their understanding has deepened.
When you ask for an explanation of their work and they don’t start and end with “Move the decimal to the left two spaces,” you know they are on to something!
Here’s a social math activity that extends the skill practice exercises in the workbook and online. A fuller explanation and all materials needed can be found on page 92 here in Changing the Way We Teach Math. Continue reading