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# Search>Learning Exercise Results> Congruent Triangles / Geometry

## Learning Exercise: Congruent Triangles / Geometry

Title:
Congruent Triangles / Geometry
Material:
Description:
Adjustable lesson for introduction to congruent triangles that includes different complementary technologies.
Course: Mathematics

### Info

Submitted by:
Michael Strangio
Date Last Modified:
June 08, 2008

### Exercise

Behavioral Objective(s): SWBAT: -Identify pairs of congruent triangles -Identify corresponding parts of congruent triangles Essential Question (Higher Level Thinking Questions): -How can you tell if two triangles are congruent? Opening (Anticipatory Set): -The teacher will present numerous triangles of different shapes and sizes on the board one at a time. Then ask all of the students to take a long close look at the board. -The teacher will engage the class in a discussion on what they see and write down suggestions on the board. -After all suggestions have been made then the teacher will inform the class that we are going to be working on seeing Congruent Triangles. Modeling/ Guided Practice: -The teacher will say Let me show you congruent triangles. The teacher will take down all of the triangles except for the two triangles that are the same on the board. -Students will be asked what they think congruent triangles are now. -The teacher will explain what congruent means and give examples to the students. Independent Practice: -The teacher will assign the class into pairs; they will have to explore the classroom and find shapes that are congruent. (Preferably triangles if they cant find any another shape will do just fine).  Given the writing prompt My shapes are _________ and are congruent because. They will have to draw and explain what the shape is in their math journals.  Students will then have the opportunity to work on the computer to construct congruent triangles at http://nlvm.usu.edu/en/nav/frames_asid_165_g_2_t_3.html?open=instructions&hidepanel=true&from=grade_g_2.html Closure:  Students present their findings to the whole group and the teacher will comment on their findings.

### Audience

• Grade School
• Middle School

### Topics

Mathematics Geometry Triangles Congruence

### Requirements

Basic understanding of different types of triangles, isosceles, scalene, equilateral; and that triangles vary.

### Learning Objectives

-Identify pairs of congruent triangles -Identify corresponding parts of congruent triangles

### Type of Task

• Individual
• Supervised
• Supplemental Activity

### Assessment

-The teacher will assess the students knowledge of congruency by using a rubric.
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