math032112

Julie,

This lesson looks good. Have you thought about how you are going to organize the manipulatives? Since they will be using more then ten ones blocks, will you give them each a bag of 20, 50, etc. blocks in addition to the bags all ready made up? Also, with the students making the numbers different ways, will they be in charge of recording these answers? Maybe they could use the whiteboard or record on a worksheet, so you can look at what they did after the activity.

Also, since we are grouping on ability, what will you do if some of those students are paired together?

Reflection

- My group of students really struggled with decomposing large numbers. I had them work with big numbers (50 through 99). They became confused when they had too many ones blocks in front of them. - I think I should have stuck to numbers under 30. This way, it would have been easier for students to understand the concept of decomposition. - We used both blocks and whiteboards but that didn't work too well. It was chaotic! I should have just stuck to one.