Developing number sense
What are we learning?
Know and use mental addition and subtraction strategies for integers
Known and use mental multiplication and division strategies for integers
Know and use mental arithmetic strategies for decimals
Know and use mental arithmetic strategies for fractions
Use factors to simplify calculations
Use estimation as a method for checking mental calculations
Use known number facts to derive other facts
Use known algebraic facts to derive other facts
Know when to use a mental strategy, formal written method or a calculator