Reinventing Arithmetic - Historical ideas from Piaget to Constance Kamii -
Addition - Sequences - facilitation of learning
These are great examples to support
Supporting Notes on development of number sense, place value, unitizing and more ...
- Whole number sense
- Place value ... notice unitizing
- Development of addition & subtraction
- Suggestons to create sequences to teach strategies to solve multi digit addition and subtraction
- Memory: learning basic facts & algorithms - getting learners to slow down & think how to proceed
Focus questions:
- Notice what number each chooses to start with.
- How do each of their different strategies fit with the development of number value, place value, and addition?
- What would be confident that each understands and doesn't?
- What activities would you recommend for their continual learning?
Video 1 Introduction ... (1:40)
Video 2 Addition 9 + 6 - three ways ... (2:14)
Video 3 Addition 87 + 23 - decompose and compose as tens and ones ... (0:24)
Video 4 Addition 13 + 13 - decompose and compose ... (1:24)
Video 5 Addition 17 + 13 - decompose and compose ... (1:20)
Video 6 Addition 26 + 5 - four ways - decompose and compose ... (3:00)
Video 7 Summary ... (0:40)
These are great examples to support
how addition and subtraction is developed and facilitated.