Sunday, March 30, 2014

A Data-Based Percent Problem for the New SAT and Common Core

The MathCast below is a more sophisticated % problem which requires processing several pieces of data expressed in percent form. Students have to make sense of the information and  develop a model to represent the data. Both a tree model and a table/spreadsheet approach are demonstrated.

These are the kinds of data-based applications which will become a central theme of the newer assessments from PARCC, SBAC and the College Board.

Sorry, you'll have to watch the video to see the problem but I'll give you a glimpse:

70% of the left-handed students surveyed were boys...

Watch "SAT/Common Core Data-based Percent Challenge" on YouTube - SAT/Common Core Data-based Percent Challenge:

Also, pls let me know if these MathCasts are blurry.

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