## Lesson Plan: The Great Cover Up! G5

Written By: Jennifer OlsonGrade Level: Grade 5

### Time Allotment

Two to three 45 minute class allotments

### Overview

This lesson focuses on three-dimensional shapes and creating a cover, or net, for them. Students will also learn to distinguish edges, faces, and vertices of solid geometric shapes.Here's a PDF of the The_Great_Cover_Up!_Lesson Plan.

### Subject Matter

Math, specifically geometry; Language Arts

### Learning Objectives

Students will be able to:### Media Components - Video/Web

**Ancient Pyramids Around the World**from Smithsonian.com http://www.smithsonianmag.com/history-archaeology/Ancient-Pyramids-Around-the-World.html?c=y&page=1&navigation=previous#IMAGES

**Edges Faces & Vertices.m4v**http://www.youtube.com/watch?v=9THsKXzkLc&feature=related

A teacher, Natalie Evans, explains her method for helping students determine how many edges, faces, vertices a shape has.

**3D Shapes and their Nets**http://www.youtube.com/watch?v=TeQD4IRzk2c&feature=related Several examples of 3D shapes from everyday life.

**IXL.com**http://www.ixl.com/math/grade-3/count-and-compare-sides-edgesfaces-vertices

**Purpose Games.com**http://www.purposegames.com/game/faces-edgesand-vertices-quiz

**Origami Cube**http://www.mathematische-basteleien.de/oricube.htm

The next three sites contain a worksheet version of nets for a cube, a rectangular prism, and a triangular prism. These might be helpful for scaffolding struggling students or reteaching.

- www.math-salamanders.com/images/3d-geometric-shapes-cube-nettabs.gif
- http://www.math-salamanders.com/images/3d-geometric-shapes-cuboidnet-1-tabs.gif
- http://www.math-salamanders.com/images/printable-3d-shapestetrahedron-net-tabs.gif

Cube Net

Rectangular Prism Net

Triangular Prism Net

### Materials

### Teacher Preparation

### Introductory Activities

**Day One**

**Ancient Pyramids Around the World**http://www.smithsonianmag.com/history-archaeology/Ancient-Pyramids-Around-the world.html?c=y&page=1&navigation=previous#IMAGES

Before viewing the slide show, ask students to keep track of how many different countries have pyramids as seen in this slide show. View slides. Hand out discussion questions. Ask, how were these structures built? What skills were needed to construct them? What is the shape? What do you wonder about in reference to these amazing structures? Let students discuss for a few minutes before sharing ideas with the whole class.

### Learning Activities

**Day One**

- Remind students that the pyramids were three-dimensional, meaning they had length, width, and depth. Ask them to explain the difference between twodimensional and three-dimensional.
- Show clip on three-dimensional shapes and nets; only show first portion on shapes, stop at 58 seconds. Be sure to keep the lights on during all video clips to enhance student focus and retention. Students will probably say the video is wrong, that it is a soccer ball shown as a sphere. Explain that in other countries it is called a football. http://www.youtube.com/watch?v=TeQD4IRzk2c&feature=related
- Display the wood or plastic geometric shapes such as cube, cuboid (also known as rectangular prism), cylinder, cone, pyramids.
- Show the video http://www.youtube.com/watch?v=9T-sKXzkLc&feature=related Show the first 18 seconds. What does Mrs. Evens compare the Capital letter ‘E’ to? How is this useful? Ask if students to explain what faces and vertices are.
- Fast Forward to 51 secs. Show clip to 2:33. Check for understanding. Make sure students know how to determine edges. Proceed until 4:18. Stop. Review how to count faces in the object. Rewind and play again if necessary. Continue to 5:18. Stop and review vertices. Complete clip.
- Have students go to either of the following websites to demonstrate their understanding of faces, edges, and vertices. http://www.ixl.com/math/grade-3/countand-compare-sides-edges-faces-vertices Another review, a little more difficult and faster is. http://www.purposegames.com/game/faces-edges-and-vertices-quiz

### Culminating Activity

**Day Two**

- Briefly review faces, edges, and vertices from previous day. Explain that today we will “cover up” 3D shapes by making nets for them.
- As a whole class example, deconstruct a rectangular prism, for example a shoebox, as this is large enough to be easily seen. Show how it goes from a threedimensional box that can be filled with shoes, blocks, etc., to a flat, twodimensional piece of cardboard.
- Show the remaining part of the 3D Shapes and their Nets clip.

http://www.youtube.com/watch?v=TeQD4IRzk2c&feature=related starting at 59 seconds. Discuss. - Distribute cubes, 1 to each pair of students.
- Working with a partner, create a net for your solid cube. Explain that there are several different ways a net can be created for a cube. Hand out graph paper, glue and scissors. Remind students making a net, or cover, is a little bit like wrapping a gift. Suggest the draw in tabs to make gluing their net easier. Have students check in with their cube before going on to step six.
- Allow students, again in pairs, to choose an everyday object (juice box, oatmeal can, etc.) and create a net for that object.
- Write a paragraph explaining how you figured out a way to make your net and any tips or traps encountered along the way. Applications for using nets in real life, beyond wrapping a gift, should be included.

### Cross-Curricular Activity

**Language Arts:**Students will write a paragraph following all appropriate conventions explaining how they made their net. Any helpful tips for making the cover, or potential problems should be included in this writing. Applications for using nets in real life, beyond wrapping a gift, should be included.

**Art:**Build an origami cube from a square sheet of paper http://www.mathematischebasteleien. de/oricube.htm

### Community Connections

**Family Math Night:**Nets and paragraphs will be displayed at family math night, heldquarterly at our school.