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
Similar Strategies
Instructional Openings
Bull Boards

Bull Boards is an instructional strategy to practice a computational or fluency skill throughout the week. The skill should be scaffolded, with simple questions building towards more rigor. I found that a main objective of this should not be to get bogged down with long problems (i.e. long division) but rather to check a thought process. For example, asking what a decimal is when rounded to the tenths, or which place value would be a hundred times bigger. The same skills cycle back throughout the year as a way to keep content fresh and allow us to connect currculum quicker.

Routines and Procedures
Camp Dollars

Camp Dollars is an incentive system created to motivate the class to work as a team towards certain goals. For example, this strategy allows the class to work towards "funding" our 2 big trips in the year - science camp and our end of the year sailing trip. Though my students are not earning actual dollars, they work together to meet our academic and cultural expectations in order to "fundraise" towards our end goal. Because the class earns Camp Dollars based on how we perform, the system allows for continuous reflection and feedback around our everyday activities.

Independent Student Learning
White Board Support on Computers

While students work on online practice problems, they use white boards to support their practice and show their work. When using white boards, students are very excited and engaged, being able to erase all or part of their work quickly to determine the right answer for their problem. They have the blank space available to show whatever they need - a model, drawing, calculation, or even explanation.

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