IV.NotesonAssessment
- Create a specific set of directions for the student art piece.
- How many triangles do the students need to have in their design?
- How many of each type?
- Consider creativity.
- Provide students with comments/feedback on their work.
Classifying Polygons
I.SectionObjectives
- Define polygons
- Understand the difference between convex and concave polygons
- Classify polygons by the number of sides
- Use the distance formula to find side lengths on a coordinate grid
II.Cross-curricular-Architecture
- You will need a computer or a way to show this video during class.
- You can go to http://www.futureschannel.com and have the students watch the short video on polygons in architec-
ture. - Use this video as a discussion prompt.
- Ask the students to identify how architecture is shaped by the use of polygons and how it depends on polygons.
- Ask the students to brainstorm the many different types of polygons in the classroom.
- Extension- ask the students to go home- take one room and write down all of the different types of polygons
that they can find in that room. - Allow time for students to share their work.
III.TechnologyIntegration
- Have the students complete a websearch on different types of lens.
- They can use Wikipedia for this.
- Students are going to explore the concepts of concave and convex as it applies to lenses.
- Ask the students to make a list of the different characteristics of concave polygons.
- Then ask students to make a list of the characteristics of convex polygons.
- Then have the student select five different lenses.
- They need to create a description/explanation of how each lens is either concave, convex or neither.
- Allow time for the students to share their work when finished.
IV.NotesonAssessment
- Student work is assessed through discussion.
- Be sure that all students have an opportunity to share.
- You want to encourage this class lesson to include a lively engaging discussion.
Problem Solving in Geometry
I.SectionObjectives
3.1. Basics of Geometry