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Who is c21 Student Resources?

c21 Student Resources is the high school imprint of Tween Publishing. Many of you are familiar with Tween’s popular work habits and organizational skills curriculum. c21 is currently in the process of adapting Tween’s middle level resources to high school. We created c21 because we couldn’t (with a straight face, anyway) publish high school level instructional materials under the name Tween — even though high school students do sometimes act like them.

c21’s comprehensive financial literacy resources:  The 21st Century Student’s Guide to Financial Literacy – Going Global and The 21st Century Student’s Guide to Financial Literacy – Getting Personal are ideal for grades 8-12, so we’re sharing the news on Tween’s website!


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