Estimation

1. Background Knowledge

1.1. grouping objects

1.2. estimating connections

1.3. play with estimating manipulatives

2. Addition and Subtraction

2.1. mental computation

2.2. partitioning into known quantities

3. Number Concepts

3.1. number names

3.2. sequencing

3.3. one to one correspondance

3.4. visual cluster recognition

3.5. de-composition/re-composition

4. Vocabulary

4.1. more-fewer/greater-less

4.2. few more-a lot more

4.3. asking questions

4.4. explain thinking-oral, visual, with manipulatives

4.5. comparing