Title:  What's Your Triangle's Angle?

Grade Level:  4th and 5th

Subject(s): Math, Language Arts, Art

Learner Outcomes:   Students will:

• identify  right, acute and obtuse angles and triangles accurately
• measure  right, acute, and obtuse angles in triangles accurately
• construct three dimensional angles and triangles from construction paper

Materials:

• lead pencils and colored pencils
• scissors
• tape
• geo boards
• computer
• overhead
• plain paper and construction paper

• Internet access and browser

• Acceptable use policy must be signed by all students and parents/guardians and must be on file.

• The students will research Internet for information on angles and triangles.
• The students will find information on right, acute, and obtuse triangles.
• The students will practice making the different types of triangle using the  geo boards.

• Review the different angles and triangles from the previous lesson.
• Have students draw on a transparency examples of angles and triangles to share with the class using an overhead projector.
• Have students create three dimensional angles and triangles using construction paper and tape.
• Have students cut various sizes and types of triangles out of construction paper to construct unusual buildings.

Modifications:  Modify in accordance with any students' IEPs.

Enrichment Activities:

Visit the Homework Spot site of Mathematics for fun with Impossible Triangles.
Practice measuring angles and triangles on the web.
Students will identify types of triangles by their angles and then play games to practice.
Have students write a description of their unusual building in their journal.

Evaluation/Assessment:

Teacher will conference students on geo boards to assess knowledge of triangles.
Students will display building creations in class.

• Math:  4.19,4.24, 4.32, 4.33, 4.34, 4.35, 4.37, 4.38, 4.42,
• Language Arts: 4.14, 4.16, 4.36, 4.38, 4.87, 4.91
• Art: 4.6, 4.7, 4.8, 4.15, 4.17

Math

4. Understands and applies basic and advanced properties of the concept of measurement.
5. Understands and applies basic and advanced properties of the concepts of geometry.
 

Language

1.  Uses the general skills and strategies of the writing process.
3 .  Uses grammatical and mechanical conventions in written compositions.
 

Art

1.  Understands what makes different art media, techniques, and processes effective (or ineffective) in communicating various ideas.
2.  Knows how the qualities and characteristics of art media, techniques, and processes can be used to enhance communication of experiences and ideas.

   Resources:

The Math League:  Angles and angle terms.
Internet Resources for Elementary Mathematics Educators
The Homework Spot
Yahooligans School Bell Math: Geometry
Regents Math:  A Study of Triangles
Klikko Math

   Authors:

      Marcy Bisher      C.W. Shipley
      Deborah Hinkle  C.W. Shipley
      Rebecca Custer  C. W. Shipley
 
 

Overview

Lesson 1

Lesson 2

Lesson 3

Lesson 4

Lesson 5