- Mrs Childers changed a multiplication math problem into so that it was easier to calculate mentally. How do we know she can do this? Does it work every time? Does it work with every operation? Give lots of examples and counterexamples, and explain your thinking.
- Mrs. Childers changed a multiplication math problem into so that it was easier to calculate mentally. How do we know she can do this? Does it work every time? Can you draw a picture that would make this process clearer? Give examples/counterexamples, explain your thinking.
- “Becoming the Math Teacher You Wish You’d Had” Complete the pattern using your own rule: _____, ______, 84, ______, _______. Explain your rule. Can you find a pattern you don’t think anyone else will think of? How many different patterns can you find?

- Reuse with different numbers and see them develop new ideas all year!
- _____, ______, , _____, ______

- Which one doesn’t belong problems, or have students create their own: wodb.ca

- How to Arrange a Train: https://youtu.be/SrWt_XvWLUk Ask students to try to count the ways to arrange a train if you have up to 3 cars, plus an engine and a caboose. Show this video?
- Ask students to describe/generalize a pattern from www.visualpatterns.org or create one like it, generalize a rule.
- Ask students to estimate using www.estimation180.com images, and explain their estimates. Show video afterwards.
- Have students explore a problem from www.openmiddle.com and come up with their best answers in the time given and explain their strategies.

- Using 1-9 at most once, create an equation where the solution is as close to zero as possible.
- Using the point A = (2, 3) as one vertex, create a rectangle with coordinates that use the digits 1-9 at most once. Be prepared to explain how you know it is a rectangle.
- Have students create their own open middle problems, share with others.

- Take a problem, and have students notice/wonder about it for a few minutes, ask questions. Ex: Square cake problem

- Have students share out their questions, list them all on the board, and then have them try to answer some of these questions “try to answer at least 3 of these questions”