I'm pretty sure this wasn't Sam's intention when he asked, "how do you plan" but I wanna try this anyways. I have been doing a collaboration with students in the credential program at Cal State San Marcos where I gave them an idea for a problem-based unit and then they worked together to plan it. Working with them has made me think about: 1. effective structures for designing problem-based units and 2. how to help teachers plan units for themselves. I thought this might be interesting…

Here is the problem for the unit I started today:

My request is this:
1. Do the problem yourself
2. In the comments, describe how you would design a unit around this (big chunks, progression, etc)?

p.s. YES…I renamed it the "infinite star"….I realize the decision has pros and cons.
p.p.s. This problem launch is a classic example of how paper limits the mathematics. With my limited video skills, I couldn't do better.