In today's problem solving activity, students wrote expressions for the values of 1 to 20 using only four 4's -- all four of them needed to be used each time. First, a list of possible operations were created in class. I gave students a head start by giving an example. Students worked in groups of four (interestingly, we have four groups of four). As groups discovered possible solutions, a member from each group would go up to the board and write their group's solution. This continued until all numbers 1 - 20 were filled. If students noticed any errors -- they were not allowed to erase another group's response. All will be used as discussion points at our next meeting.
Here are some notes from the board prior to group work:
Responses from individual classes:
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| Aquila |
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| Perseus |
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| Andromeda |
