Year 4
Here is a bank of video lessons to support the most efficient calculation methods in Year 4. However, understanding is deepened when new concepts are learned through using a range different representations and not just the ones in these videos.
ADDITION
SUBTRACTION
MULTIPLICATION
Mental strategies (distributive law)
Mental strategies (associative law)
Written methods (counters and grid)
Written methods (expanded columns)
DIVISION
Mental strategies (using place value)
Mental strategies (using a bar model)
Written methods (with remainders)
