Lesson Plan
Alabama Learning Exchange

Alex: Tangram Fractions

For Teachers 3rd - 5th
The teacher will engage the class by reading Grandfather Tang. Students will solve a tangram puzzle. Students will find the fractional value for each piece of the tangram. Students will create a picture using the pieces of the tangram....
Handout
University of St. Andrews (UK)

University of St. Andrews: Henry Ernest Dudeney

For Students 9th - 10th
This site from the University of St. Andrews contains information on the life of Henry Ernest Dudeney. Links for more information are provided throughout the site.
Interactive
Arcademics

Arcademics: Dolphin Dash Count Money

For Students 1st - 4th
Dolphin Dash is a multi-player game that allows students from anywhere in the world to compete against one another while practicing counting money!
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Clock Arithmetic and Cryptography

For Teachers 3rd - 8th Standards
This lesson plan is designed to guide students in practicing their basic arithmetic skills by learning about clock arithmetic and cryptography. Linked resources include helpful applets.
Interactive
ABCya

Ab Cya: Tangrams

For Students 4th - 7th Standards
Students attempt to make various shapes by rearranging the geometric shapes to form a tangram.

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