Symmetry

Ag_math_symmetry

Create balanced, symmetric pictures
Grades K-4

Introduction
The students will explore creative ways to make symmetric pictures using shapes or objects and manipulate items to realize viewpoint, position, and balance in symmetry.

The teacher will demonstrate and review how to use the selection keys and function tools of the program and discuss ideas.  Showing the very basic type of symmetry will allow the children to get the idea.  Allowing the teacher to observe and evaluate true levels of children's concept development in this mathematic area will happen once the students start to work.

Preparation
Pictures of symmetrical designs should be collected ahead of time for student use and discussion.  Pencil and graph or grid paper is suggested for conceptualizing.

Procedure
The teacher will take time to demonstrate how the camera rotate buttons will help see symmetry in different perspectives.

Students use GollyGee Blocks to build a picture that is symmetrical.  It is suggested that the students layout a rough sketch, using pencil and paper, before making the scene.

The teacher should have the children rotate pictures to check their own symmetry within their scenes.  Students should tell how and why objects and shapes look different.

The teacher should listen to and ask questions of children about what happens when the rotate arrows are used.  (How does the picture change?  Does the real symmetry of the picture change?)

Print out and share the creations of symmetry among the class.

Evaluation
Students are evaluated on the success of the symmetry in their printouts.

Students are also evaluated on their ability to verbally describe the concept of symmetry.

Extensions
Students write about their pictures to tell the steps/sequence of creating their pictures.

A classroom Book of Symmetry and a bulletin board can be created for visitors and schoolmates to enjoy.

Symmetry can be discussed in relation to science and symmetry in nature.

This lesson can be followed by an art lesson created of symmetrical geometric shape cutouts created on large paper (similar to a parquetry block design or kaleidoscope design from center out.

Students use Objects in GollyGee Blocks to create the rotational symmetrical pictures.

Third and fourth graders may write descriptive paragraphs about their symmetrical creations.

The symmetrical creations can be presented in a slide show for parents or other classes to see and try on their own.

Third and fourth grade students can make pictures with two-fold symmetry, four-fold symmetry, and rotational symmetry.

Students use the Move key in GollyGee Blocks to make more complex pictures.

Tips
Students should experiment with perspective views frequently during the activity.  The children should be asked to pause and ``rotate" or turn their creations to view their symmetry.  More variety will be seen as their pictures are being created and expanded.  Conversation and discussion during this activity will promote understanding of the math of symmetry. This is enjoyable and fun!

Students should use this activity more than once during a school year to see and compare growth in deepening student concept development.

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