Reinventing Arithmetic - Historical ideas from Piaget to Constance Kamii -
Subtraction - 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?
Reinventing Arithmetic - Historical ideas from Piaget to Constance Kamii -
Subtraction - Sequences - facilitation of learning
These are great examples to support how addition and subtraction is developed and facilitated.
Video 1 Introduction ... (0:06)
Video 2 Solve problem ... 26 - 17 = ... (0:35)
Video 3 ... Continue to survey other students solutions to 26 - 17 = ... (2:20)
These are great examples to support
how addition and subtraction is developed and facilitated.