Part 1: Get students ready for the problem by activating prior knowledge.
This is a poster from the Nelson Kindergarten program. Moses asked students to find a pattern in the poster and identify the pattern core. He recorded the core on the sticky note.
Part 2: Introduce the problem and get students to solve it.
Part 3: Share different thinking and look for big ideas (what did we learn from doing this?)
First, Moses placed all the caterpillars on the bulletin board. Then he asked students to find ones that were the same. This child is explaining why these two samples belong together (they have the same green-purple core).
As students continue to find pairs of caterpillars that were similar, Moses noticed that some pairs were the same. This student is explaining how the first pair (the one he's pointing to) is similar to the pair closest to Moses (they have the same green-purple-green-purple core).
There were several samples that were incomplete. Moses plans on asking students to predict which colour is next based on the core.
This lesson is based on ' Colourful Caterpillars' in the Guide to Effective Instruction in Mathematics: Patterning and Algebra. You can find electronic copies of all the guides at
http://www.eworkshop.on.ca/. There are online videos of lessons too!