1. Do you remember these from yesterday? Can you fill in the chart?
WOW for squares!!
Do you remember these from yesterday? Can you fill in the chart?
Stage
Number of blocks 1 2 3 4 5
Stage Stage Stage Stage Stage 5

2. TODAY: Build the first 4 TRIANGULAR numbers.
Which colors doesn’t matter  Then fill in the chart.
Stage
Number of blocks 1 2 3 4 5

3. What pattern do you see???
Stage
Number of blocks 1 2 3 4 5

4. Now ROTATE any triangular number onto the next triangular number:
Stage
Number of blocks 1 2 3 4 5

5. Time for CW! Build the first 4 TRIANGULAR numbers.
Which colors doesn’t matter 
Stage
Number of blocks 1 2 3 4 5
Time for CW!