Triangle and its Properties

Introduction

Lets take a little trip and explore triangles.  A triangle is a 3 sided figure with three angles that always add up to 180 degrees.  This webquest is designed to help you understand the basic properties of triangles.  You will be learning what makes triangles congruent, the pythagorean theorem, and the main properties of triangles.

Task

You and your partner will study and be able to classify the parts that make up a triangle.  You will also explore congruent triangles.  You and your partner will be looking in depth at right triangles and discover how the pythagorean theorm works.  You will be able to tell the 6 main types of of triangles.  They include right triangles, scalene triangles, acute triangles, obtuse triangles, isosceles triangles, and equilateral triangles.

Process

Step 1 : Students will first visit  https://youtu.be/1k0G-Y41jRA

  • Classifications of triangles by sides

a)       A/An _________ has 3 sides that are equal.

b)      A/An _________ has 2 sides that are equal.

c)       A/An _________ has no sides that are equal.

  • Classifications of triangles by angles

d)       A triangle that has one angle that is 90 degrees is a ______triangle.

e)       A triangle that has all 3 angles less than 90 degrees is a _____triangle.

f)       A triangle that has one angle that is greater than 90 degrees is a ___triangle.

Step 2 : Students will visit https://youtu.be/AtQPyhaCHQg

  • Equilateral triangle

 

  1. Drag all of the orange dots around.  As the triangle gets bigger what happens to the sides of the triangle?

  2. All 3 angles of an equilateral triangle are ____ which makes it also a  _________triangle.

Step 3 : Students will visit https://youtu.be/cPiwII5TMns

  • Scalene triangle

 

  1. Drag all of the orange dots around.  As the triangle gets bigger and smaller, are any of the sides the same?

  2. What do we know about the interior angles of a scalene triangle?

  3. Make a speculation about the sides and the respective angles.

Step 4 : Students will visit https://youtu.be/gMOWydu3CyA

       a. Classification of Triangles based on its sides sand angles

Step 5 : Complete the questions on the website below. Your answers will be emailed to me directly. 

    https://docs.google.com/forms/d/e/1FAIpQLSc155_RBBo0l9YzIYaOgssYVTQb3fNtuEMl1PQuOGHaJ5pArA/viewform

 

 

 

 

 

 

 

 

Evaluation

 

CATEGORY

4

3

2

1

Mathematical Concepts

Explanation shows complete understanding of the mathematical concepts used to solve the problem(s).

Explanation shows substantial understanding of the mathematical concepts used to solve the problem(s).

Explanation shows some understanding of the mathematical concepts needed to solve the problem(s).

Explanation shows very limited understanding of the underlying concepts needed to solve the problem(s) OR is not written.

Google Quiz Score

Answered 6 or 7 out of 7 correctly.

Answered 5 out of 7 correctly.

Answered 4 out of 7 correctly.

Answered less than 3 out of 7 correctly.

Working and using time wisely in class

Student was an engaged learner who did not disrupt the work of others  and was working cooperatively throughout the webquest.

Student was an engaged learner but at times distracted others and/or did not working cooperatively during the entire webquest.

Student cooperated, but needed cues to stay on-task.

Student did not work effectively in class.

Mathematical Reasoning

Uses complex and refined mathematical reasoning.

Uses effective mathematical reasoning

Some evidence of mathematical reasoning.

Little evidence of mathematical reasoning.

 

 

 

 

 

 

 

 

 

 

 

 

Conclusion

Congradulations!!!!! You have completed the webquest assignment.  Now you should all have a great understanding of some of the main properties of triangles.  You can also now prove if two different triangles are congruent.  You will also be able to find the missing side of a triangle by using the pythagorean theorem.  You are now ready to look more in depth on triangles.

Credits

Work Cited

“Angles in a Triangle Worksheets and Solutions Part 2.” Www.onlinemathlearning.com, www.onlinemathlearning.com/angles-triangle-worksheet.html.

Classification of Triangles - Math Open Reference, www.mathopenref.com/triangleclassify.html.

“Equilateral Triangle.” Equilateral - Math Word Definition - Math Open Reference, www.mathopenref.com/equilateral.html.

“Isosceles Triangle.” Isosceles Triangle - Math Word Definition - Math Open Reference, www.mathopenref.com/isosceles.html.

“Practicing Seventh Grade Math: 'Classify Triangles'.” IXL Learning, www.ixl.com/math/grade-7/classify-triangles.

“Practicing Seventh Grade Math: 'Find Missing Angles in Triangles'.” IXL Learning, www.ixl.com/math/grade-7/find-missing-angles-in-triangles.

Rabber, Robert. “Coach Raber's Triangle WebQuest!” Create WebQuest, www.createwebquest.com/webquest/coach-rabers-triangle-webquest.

“Relationship of Sides to Interior Angles in a Triangle.” Relationship of Side Lengths and Angles of a Triangle - Math Open Reference, www.mathopenref.com/trianglesideangle.html.

“Scalene Triangle.” Scalene Triangle - Math Word Definition - Math Open Reference, www.mathopenref.com/scalene.html.

Teacher Page

This WebQuest should not be difficult to implement in a classroom. Students should find it easy to get through this assignment by following each step.  They should be able to use the web to finish all the steps of the project, and complete the assignment with out alot of help from the teacher.

This assignment is a great hands on tool that can enhance a student's ability to learn more about different topics.