Tessellations
I.SectionObjectives
- Understand the meaning of tessellation.
- Determine whether or not a given shape will tessellate.
- Identify the regular polygons that will tessellate.
- Draw your own tessellation.
II.ProblemSolvingActivity-DesigningTessellations
- For this lesson, the students are going to design a tessellation that uses two different polygons.
- Students first need to identify which polygons will tessellate and which won’t.
- Then the students can work on their design.
- Each student will need colored pencils, rulers, paper, cardstock, and large paper.
- Explain to the students that they will be graded on their work.
- Each student needs to create a pattern to demonstrate that the tessellation that they have suggested does work.
- Students need to have a peer check their work.
- Students need to have an instructor check their work.
- When the pattern has been approved, students may begin work on their final design.
- This will help students problem solve and eliminate redoing work.
- Allow time for the students to present their work when finished.
III.MeetingObjectives
- Students will understand the meaning of tessellation.
- Students will determine whether or not a given shape will tessellate.
- Students will identify the regular polygons that will tessellate.
- Students will draw their own tessellations.
- Students will share their work when finished.
IV.NotesonAssessment
- Design a rubric to grade student work.
- Share the rubric with the students ahead of time.
- Possible sections include focus, creativity, design, accuracy, etc.
- Provide written feedback to students on their work.
Symmetry
I.SectionObjectives
- Understand the meaning of symmetry.
- Determine all the symmetries for a given plane figure.
- Draw or complete a figure with a given symmetry.
- Identify planes of symmetry for three- dimensional figures.
II.ProblemSolvingActivity-MagazineSymmetryHunt
Chapter 5. Geometry TE - Problem Solving