Web-based Lesson Plan
Date: 26/12/2012
Teacher:
Wahid Yunianto
College student of Mathematics Ecucation Master Program, Sriwijaya University
Class/Level: Elementary students Grade 5
Topic: Geometry 3D shapes
Objectives (Learning Goals):
- Find things which have the same shape with a rectangular polyhedron
- Draw a net / nets of rectangular polyhedron (prism)
- Find the surface area of rectangular prism
- Students will see that the Internet is user-friendly in the process
Web Sites used
Name of Web site: Great Atlantic and Pacific Tea Co., American Stores Company
Rationale for selecting this site: It is an interactive Web site where students can learn about three-dimensional shapes, calculate surface area and volume, and discover some of the mathematical properties of shapes.
Other materials:
Variety of Boxes, paper, wrapping paper gift, rulers, scissors, cutters, and pencils.
Teacher Preparation:
Bookmark sites. Put addresses on the board as well. Optional- create worksheets to use while on -line and change scenario cards.
Steps for learners:
Description of pre-computer/classroom activities (preparation):
- Review through class discussion the 3D shapes (polyhedrons)around us how they look like. Discuss where those shapes are found and used.
- Go around the class and find 3D shapes you can find.
- Students list the same 3D shapes they find at home
- Use all the material, let them experience in wrapping a box gift and find the surface area of polyhedrons by using this activity.
- Go on-line to Interactives Geometry 3D shapes to practice.
Description of computer/online activities:
- See the tutorial here.
- At Interactives Geometry 3D shapes, students explore how to find a net of a rectangular polyhedron or other polyhedrons.
- At Interactives Geometry 3D shapes, students find the surface area, by filling the net with the area of each blanks and adds up those areas .
- At Interactives Geometry 3D shapes, students try other prisms and find their surface area.
Description of follow up activities:
Take home:
- Students use activity of wrapping a box gift to make a connection to wrapping a tube.
- Students are challenged to find surface area of a tube or cylinder.
- Students are challenged to use the surface area of other cylinders.
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