Do you want your students to own their mathematical thinking? Do want them to reflect on the problem of the day beyond getting it right or wrong? Do you want to gather data about problem solving to see growth over the school year?
I use this tool with stickers and a spreadsheet so that students can give honest feedback to themselves about how they solve any mathematical challenge.
We share our thinking regularly, and see growth in our communication about math over time. We also value mistakes as part of the learning process and I have found that tracking this data over time helps the students feel more confident in mathematical risk-taking.
Every day, the students place a sticker in the appropriate ring that describes their problem solving on that task. We track the data for a quarter, then analyze for mean, median, and mode. We also compare data from quarter to quarter and use this information as part of our evidence for conferences.
I hope you find this a useful idea.