Symmetry

Nataleen Pryce                                                              EDE 715​ Professor Marshall. November 30,2011

Grade: 3rd- 4th Grade Subject/Topic: Math and Science

Duration: 35 to 45mins. Objective: To teach students about the word and concept of symmetry. General Learning Outcome: Students will be able to explain what symmetry means Students will be able to identify and explain an object's symmetry Specific Learning Outcome: Students' understanding that symmetry surrounds us. It can be defined as dividing equal in proportion, or a perfect match. Rationale (NYS Learning Standard):

4.G. 5 Define and identify vertices, faces, and edges of three-dimensional shapes 4.G. 3Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry. Introduction: In this lesson students will be given a few different leaves to study there patterns. Looking at both sides of the leaves, what do the notice. Do they see a pattern. Students will then exchange leaves and continue to look for similarities or symmetry. Instructional Lesson: 1. Teacher will read the book.. Is this Symmetrical by Nancy Kelly Allen as an introduction 2. A variety of leaves will be distributed to students. 3. Students will study both sides of a leaf for symmetry. 4. Students will exchange leaves with one other person and study new leaf. 5. Students will then draw or trace a leaf on construction paper 6. Students will then share their symmetry observations.

Materials: Storybook, collected leaves, pencils, construction papers, coloring tools Assessment:  Students will share what they have learned about symmetry. Extension:

As an extent ion of what students have learned their task is to take notice of things around them that might be symmetrical. For example if you live in a building is the building symmetrical in shape and why? Explain