35 slides. Doubling and halving numbers to 20. Mental strategy used with ten frames to encourage subitizing of answers. Counters animate. Interactive PowerPoint Think Bubble Math 203
ACMNA030
Solve simple addition and subtraction problems using a range of efficient mental and written strategies
ACMNA033
Recognise and interpret common uses of halves, quarters and eighths of shapes and collections
ACMNA051
Investigate the conditions required for a number to be odd or even and identify odd and even numbers
ACMNA055
Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation
Not your curriculum? Click here to change this selection
