M2.8.7 For the adult
Jumping far ahead
How many sticks do 10 squares need? Must I draw all ten?
What this chapter teaches
A rule lets you jump far along a pattern without writing every term. From the 1st term to the 10th there are 9 steps, not 10, which is a common slip. Test a rule on a small case you already know before you trust it.
Three questions to ask
There is no one right wording. Listen for the idea.
- How many sticks do 10 squares need, and do you have to draw them all?
- Why are there 9 steps from the 1st number to the 10th?
- How could you test a rule on a small pattern you know?
After the chapter, the learner can
- Find the 10th shape or number without drawing them all
- Write a pattern rule in words and test it
What they copy into their notebook
A rule lets you jump ahead. Stick squares: times the number of squares by 3, then add 1. 10 squares need 31 sticks. Test a rule on squares you know, and see why it works.