Puzzlemaker Clip Art Gallery Lesson Plan Library Kathy Schrock's Guide for Educators Brain Boosters Learning Adventures Science Fair Central Curriculum Center On TV Young Scientist Challenge Enter Username Access resources you have created under your login. Teacher Tools such as: Lesson Plan Creator, Quiz Builder, and Worksheet Generator are no longer available. You can create new lesson plans and quizzes within your DE streaming account. If you don't have an account, sign up for a demo here.

Lateral Thinking Getting Younger?   In the year 1201, a woman was 35 years old. In the year 1206, the same woman was 30. How is this possible?   The dates are B.C. rather than A.D.

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