35b52a70_State_Standards___Project_SEED__Examples_in_SEED_Lessons
[Mathematical Practices] 2. Reason abstractly and quantitatively [Examples in SEED Lessons] 
During SEED lessons, students are continually asked to explain and prove their conjectures. Students are asked to draw generalizations from specific examples and justify their reasoning. They discover how to represent generalizations symbolically and apply those generalizations to specific instances.
Project SEED and Common Core State Standards | Project SEED
Examples in SEED Lessons