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Line 16: − + − *** [https://www.brighthubeducation.com/middle-school-math-lessons/39674-triangle-properties-and-angles/ Basic concepts of triangles,Types of triangles,Angle sum property,Exterior and interior angle relation] − *** [http://www.cpalms.org/Public/PreviewResourceLesson/Preview/40261 CPALMS -Introduction to triangles as a closed three sided figure,Inequalities in triangles] − *** [http://www.cpalms.org/Public/PreviewResourceLesson/Preview/40261 Inequalities in triangle, Investigate the relationship between the sides and angles in a triangle] − *** [https://jsuniltutorial.weebly.com/ix-triangles.html Test papers for triangles] −
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===Concept Map ===
===Concept Map ===
[[File:5. Triangles.mm]]
[[File:Introduction to History.mm]]
===Additional Resources===
===Additional Resources===
====OER====
====OER====
* Web resources:
* Web resources:
** [https://en.wikipedia.org/wiki/Triangle Wikipedia, the free encyclopedia]
** [https://en.wikipedia.org/wiki/History Wikipedia, the free encyclopedia]
* Books and journals
* Books and journals
====Non-OER====
====Non-OER====
* Web resources:
* Web resources:
** [https://www.brighthubeducation.com/middle-school-math-lessons/39674-triangle-properties-and-angles/ Bright hub education] : blurb
** [https://aaslh.org/historical-thinking-and-other-unnatural-acts/ Historical thinking] : blurb
* Books and journals
* Books and journals
* Textbooks
* Textbooks