Transition from number value to addition using composition and decomposition of numbers

Supporting Notes on development of number sense, place value, unitizing and more ...

Focus questions:

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 ...

 

Top

 

 

Dr. Robert Sweetland's notes
[Home: homeofbob.com & thehob.net ]