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Inside, outside, and all around: Students will distinguish between perimeter, area, and volume. They will use tangrams and graph paper to create two-dimensional figures that will be measured for area and perimeter. By creating layers of centimeter cubes, the students will explore the concept of volume.; Format: lesson plan (grade 4–6 Mathematics); By Angeli Jarman.

Tangrams: While reading Grandfather Tang's Story by Ann Tompert, students will be using tangrams to create the animals that the fox fairies are turning themselves into in this story.; Format: lesson plan (grade 1–3 Mathematics); By Dawn Coleman.

Resources on the web

Developing geometry understandings and spatial skills through puzzlelike problems with tangrams: Important aspects of geometry in the lower grades are describing figures and visualizing what they look like when they are transformed through rotations or flips or are put together or taken apart in different ways are . This two-part tangram example demonstrates... (Learn more); Format: lesson plan (grade 2 Mathematics); Provided by: Illuminations

Puzzling relationships: In this lesson, students use concrete materials to develop the skills needed to work with interactive Tangram puzzles. The students also further develop their understanding of spatial relationships and develop problem-solving skills. (Learn more); Format: lesson plan (grade K–1 Mathematics); Provided by: Illuminations

Tangram puzzles: In this lesson from Illuminations, students choose a picture and use all seven Tangram pieces to fill in the outline. They describe and visualize what figures look like when they are transformed through rotations or flips, or are put together or taken apart... (Learn more); Format: lesson plan (grade K–1 Mathematics); Provided by: Illuminations

What's in a shape?: The purpose of this lesson is to explore characteristics of shapes by making and using tangram sets; to discover how the tangram pieces are related to one another; and to determine how many different combinations of the triangles, squares, and parallelograms... (Learn more); Format: lesson plan (grade 4–5 Mathematics); Provided by: Science Netlinks