PART 1: FIGURING OUT FLUENCY: KEY IDEAS PART 2: STRATEGY MODULES Module 1 Count On/Count Back Strategy Module 2 Make Tens (and Hundreds and Thousands) Module 3 Partial Sums and Differences Strategy Module 4 Compensation Strategy Module 5 Think Addition Strategy Module 6 Standard Algorithms for Addition and Subtraction PART 3: PUTTING IT ALL TOGETHER: DEVELOPING FLUENCY APPENDIX: TABLES OF ACTIVITIES REFERENCES