Introduction
Intro to Geometry
Activity 1
Describe the Shape
Activity 2
Making Patterns
Activity 3
Building Shapes
Activity 4
Rotational Symmetry
Activity 5
Line Symmetry
Teacher Support
Extension Ideas
Standards
Alignment
Activity
Photographs
Journals for:
Describe the Shape
Line Symmetry

Objective: to show line symmetry using pattern blocks.
Manipulative Activity: An object has line symmetry if, when you draw a line down the middle, the left side is a mirror image of the right side. Distribute pattern blocks and have students create designs that have line symmetry.
Technology Activity: Students will use a pattern block applet written by Jacobo Bulaevsky to reinforce the idea of line symmetry.
Have students go to Line Symmetry.
Paper/Pencil Activity: Depending on the level of your students, you can have them complete this activity individually or with assistance. Here are some possible activities:
 Students define line symmetry.
 Students fold paper in half and paint a design on one side of paper.
 Students fold again and identify where the line of symmetry falls.
Literature Connections:
Who's There? ( A Sliding Surprise Book)
Charles Reasoner (Price Stern Sloan Pub; Board edition, November 2003)
The Butterfly Alphabet
Kjell B. Sandved (Scholastic Inc., 1999)
