# ALEX Lesson Plan

## Tangram Fractions

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This lesson provided by:
 Author: Jessica Jeffers System: Enterprise City School: Hillcrest Elementary School The event this resource created for: GEMS
General Lesson Information
 Lesson Plan ID: 24062 Title: Tangram Fractions Overview/Annotation: 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. Students will find the fractional value of their partner's tangram picture. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.
Associated Standards and Objectives
Content Standard(s):

Local/National Standards:

Develop understanding of fractions as parts of unit wholes, as parts of a collection, as locations on number lines, and as divisions of whole numbers (NCTM National Standard 3rd - 5th grade).

Primary Learning Objective(s):

Students will be able to label fractional parts of the tangram.

Students will be able to create a picture using tangram pieces. Students will be able to solve a tangram puzzle.

Preparation Information
 Total Duration: 91 to 120 Minutes Materials and Resources: Tangram pieces, square puzzle, the book Grandfather Tang, paper, crayons Technology Resources Needed: LCD or Interactive WhiteBoard (optional) Background/Preparation: Students need to have a basic understanding of fractions.
Procedures/Activities:
 1.)Read the book Grandfather Tang (this can be skipped if the book is unavaliable). 2.)Pass out the puzzle square and pieces of the tangram (see puzzle square document).(Grandfather Tang's Animal Puzzle)This site offers the tangram puzzle as a printable and also offers patterns of the animals built in the book. 3.)Place students randomly into pairs or groups and ask them to try and fit the pieces of the tangram into the square. 4.)Walk the room offering hints to groups that need help. 5.)Students can share with the class how they went about solving the problem using online manipulative tangram pieces.(Tangrams NLVM)This site allows students to manipulate pieces of the tangram. 6.)Display the completed tangram and ask students if this tangram represents the whole, what fractional value would each piece represent (see tangram solved document). 7.)Allow students time to work with their group to determine the value of each piece. 8.)Have groups share with the class the various approaches they used in order to determine the value of each piece. 9.)Allow students to use the pieces of the tangram to create their own picture by tracing the different pieces. 10.)Be sure to encourage students to use pieces more than once or even omit some of the pieces. 11.)Once students have completed their pictures, they should swap papers with a partner and figure out the fractional value of their partners picture. 12.)Remind students that the whole was the completed tangram square. 13.)Have students share with the group how they determined the value of their partners picture.

 Attachments:**Some files will display in a new window. Others will prompt you to download. Puzzle Square.pdf tangram solved.JPG
Assessment
 Assessment Strategies Have students write and explain the strategy they used to determine the fractional value of their partner's picture.
 Acceleration: Students that have already aquired this skill can be challenged to create a picture that has a fractional value of exactly 2 1/16. Intervention: Students that need additional practice on this topic can be allowed the use of fraction strips.

 View the Special Education resources for instructional guidance in providing modifications and adaptations for students with significant cognitive disabilities who qualify for the Alabama Alternate Assessment.