Graphic Organizer/Worksheet


A clever puzzle which has students investigate the least number of smaller acute angled triangles you can dissect a triangle into.


  • Mathematics > General
  • Mathematics > Geometry
  • Mathematics > Problem Solving

Education Levels:

  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


student-facing triangle triangles geometry angles bisecting



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution 3.0


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Curriki Rating
On a scale of 0 to 3
On a scale of 0 to 3

This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 2, as of 2008-07-15.

Component Ratings:

Technical Completeness: 3
Content Accuracy: 2
Appropriate Pedagogy: 3

Reviewer Comments:

The content in this pdf file includes different types of angles, interior points in a triangle and problem solving. This activity (from 1000problems.com) is easy to follow and includes answers with justification. This resource could easily accommodate an extension activity for higher learners to differentiate instruction. The CRT feels the materials could also include a protractor and a ruler.

Not Rated Yet.

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