The National Security Agency (NSA) has worked to craft these educational materials they are calling "concept development units" (CDUs). The units are divided into 11 sections, including Algebra, Calculus, and Data Analysis. Clicking on each of these sections will bring up a complete list of all the CDUs currently available. Each list offers a paragraph-long description of each activity, along with an indication of the appropriate grade level for each activity. Some of the activities include "Understanding Proportions and Scale Drawings," "Scatter Brained," "Fashion Sense and Dollar Wise" and "Squares in the Light." These are all terrific resources for educators, and the site also contains links to information about the Math and Related Sciences Camp (MARS) sponsored by the National Security Agency and links to other educational centers.


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  • Mathematics > Calculus
  • Mathematics > Geometry
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  • Mathematics > General
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