Number Puzzles help students match various models and representations of the addition problems , subtraction problems, and other numbers show. These puzzles are a great math station or math center and give students hands-on experience with sorting, classifying and categorizing second grade math concepts.
Addition and Subtraction Word Problems Grouped by Problem Type is a year-long resource for problem solving. Total of 156 problems. This packet makes a distinction between procedures (steps in solving a problem), models (which show the relationship between the numbers in the problem) and strategies for computation (such as count on, breaking part a number, etc.). Included are six different models to use with students (all based on inverted-v and bar models).
Math with Legos: An Activity for Improving Word Problem Skills