35b52a70_State_Standards___Project_SEED__Examples_in_SEED_Lessons
[Mathematical Practices] 8. Look for and express regularity in repeated reasoning [Examples in SEED Lessons] 
SEED lessons often include patterns. Students are asked to discover a pattern and justify their reasoning. When students notice repeated calculations, they look for general methods and shortcuts.
Project SEED and Common Core State Standards | Project SEED
Examples in SEED Lessons