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This activity could be an excellent ice-breaker and teambuilding activity, however I agree with my group that this activity could be challenging for some students, and so I wouldn't use this activity until I knew my class better and could build effective groups.

My takeaway from this activity was that good group work necessitates collaboration and communication, and has a high enough skill ceiling that students can be challenged in multiple runthroughs of the activity.

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This shows our first and second attempts at playing 100 numbers. Round one we made it to eleven, round two we made it to 33.

With round one, we didn't make it far enough to realize that we were each working in our own quadrant.

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With round two, we each called out the number we were looking for and then said "got it" once we had highlighted. Better communication helped us move faster since we didn't have to watch what other people were doing.

We also jotted down our own list of numbers, counting by fours, to speed up our searching.

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I think this activity reinforced what we have been constantly learning about which is collaboration. We obviously had ways to make it easier through computer shortcuts but had to come up with strategies that would actually require us working together. We came up with the strategy to announce our numbers and that we were done to let the next person know they could go and what number they needed to find. The first time we did the game I was trying to mentally calculate and write down what numbers I would need to look for so I could get a head start, but the game was going so fast I got flustered and a little panicky. The strategy we used is great because it can be used with technology and if the game was played on a laminated sheet of paper or whiteboard.

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Playing this game was a great activity and a different experience than I've ever had with group work in math. I liked that it involved problem solving and collaboration, but I'd want to know my students and their dynamics well before playing a game with a timed-racing element. I did feel anxiety when I couldn't find my numbers quickly. I was fearful of looking stupid in front of my group. As adults that work well together, we supported each other and had a good laugh when we realized that we were working harder than necessary looking at the whole grid. For a more sensitive student, I'd hate to have an experience like this reinforce the idea that they have to be fast to be smart.

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Doing this activity the first time (below) was eye opening.  I struggled.  I had tech issues and could not hear or see what the rest of the team was planning.  When I was able to rejoin the group they were ready to go and I didn’t even know what I missed. I had prepared for our Zoom meeting and thought I would have no trouble with the game. I was completely wrong.
I love that I struggled. I even love that we seemed to fail so epically. I dragged the team down.  I felt horrible.  When I left the meeting and turned off the computer and headed back to my family for love and support, all I could think of was a student that I had had the privilege of working with last semester.  A few minutes into any group work and he would shut down, not speak.  He really struggled with any group work.  When MT and I were able to get anything out of him in these situations he would just communicate that he was “stupid”.  This number game gave me a taste of what he must have been feeling.  He has a diagnosis of ADHD and I imagine often “doesn’t know what he doesn’t know” in these group situations. I have been turning over in my head how to facilitate greater inclusion in group work when the groups have a member that is not coming to the task with the same set of skills as the rest of the group.
This game was a great way to facilitate group work and establish ground rules for group work in the future as laid out in the blog.  I think it is also a great tool for educators to use for themselves to illuminate some of the barriers to group work that our students might face.   Insight into the students we work with can only help us reach across those barriers and get everyone on the same side. - NDKC