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GeoGebra Points of Concurrency in Triangles
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CC BY-NC
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In this activity, students will use GeoGebra to construct using technology the circumcenter, incenter, centroid and orthocenter of triangles.

Subject:
Mathematics
Material Type:
Activity/Lab
Date Added:
04/21/2018
Geometry: Relationships Within Triangles - Flashcards
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CC BY-NC-SA
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Understanding vocabulary is critical in order to fully understand triangle relationships. In this activity, students will review the vocabulary associated with triangles: circumcenter, incenter, centroid, and orthocenter.

I had my students cut out the flashcards during class. I was very surprised some students took a lot of time cutting out the cards since they cut around the boxes instead of making straight cuts.

I would suggest before students are given the scissors, to model the quickest way to cut out the cards.

Subject:
Mathematics
Material Type:
Activity/Lab
Date Added:
04/21/2018
Points of Concurrency (Compass & Straightedge)
Conditional Remix & Share Permitted
CC BY-NC
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In this activity, students will construct using a compass and straightedge the points of concurrency in triangles: centroid, incenter/incircle, circumcenter/circumcircle, and the orthocenter.

Subject:
Mathematics
Material Type:
Activity/Lab
Date Added:
05/29/2018