CSI Time: CSI Time

CSI Time
Students In Action
Students In Action
Collaborative Student Groups

CSI Time

CSI Time is an inquiry based strategy where students must solve a "math mystery" that introduces a concept that we will learn. They have until the end of the week to collaboratively (with their detective partner) discover the clues and work their way to the "criminall". In just 10 minutes, students have worked themselves into a frenzy to grapple with content they may not already know what to do with. This desire to problem solve pushes students during the lesson that follows to learn the skills they need to solve the mystery.  

Strategy Resources (1)
Students In Action
Students In Action
Daniel Utset-Guerrero
Holmes Elementary School
Miami, FL


About this strategy

Prep Time:
Fifth grade
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Academic Culture
Brain Power

Brain Power is a strategy my students and I use to promote a classroom culture of risk-taking, resilience, and collaboration. Early in the year, I teach my students to wiggle their fingers towards their peers who are thinking of an answer or trying to correct an incorrect response. This strategy creates wait time and encourages my students to continue their thinking process without giving up.

Academic Culture
Peer Evaluations

I encourage my students to evaluate their peers whenever they are involved in discourse--both in side conversations as well as in class discussions. I implemented a system of Peer Evaluations, a process that involves students using silent hand signals, in order to give my students more voice in class. Some of my students want to say what they think and exert their opinions, but there isn't enough time for every student to share. Other students easily get distracted and need physical engagement to stay focused. Through Peer Evaluations, my students can share their thoughts and are pushed to stay focused throughout student discourse.

Whole-Group Instruction
Rapid Fire

Sometimes the only thing holding students back is practice time. It's amazing how much they can get done when they get themselves into a work frenzy. During Rapid Fire, we create a "controlled crazy" by playing techno music while students work in pairs to solve as many computation problems as possible in five minutes. This is a great strategy to use before taking the lesson to word problems, and provides a break from sitting quietly and attentively during the lesson. There is also always an element of choice in what the students want to focus on, helping them to adjust their self-evaluation for later on.

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