Transition from number value to addition using composition and decomposition of numbers
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?
Base 10 number system summary sheet:
Addition & subtraction - three problems
Video 1 Add 19 + 21 ... (0:42)
Video 2 Add 43 + 20 ... (1:02)
Video 3 Add 43 + 20 ... (0:35)
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