3_20_07

Large Group (Heidi):

 * Solve a couple of Trading Game going backwards story problems. [[file:trading game problems backwards2.doc]]
 * Solve some double-digit subtraction story problems with no re-grouping. [[file:47-23.doc]]
 * Share strategies at the end.

Small Group (Maria):

 * Begin by having them make 47 with digi blocks and/or base ten blocks
 * Play the Make Ten Race in pairs
 * Play Collect 25 cents all together