Another Geometry Content Suggestion: Proofs

A fundamental part in geometry is the ability to write and use proofs to support your work. Khan Academy has recognized this by making video proofs of certain theorems (ex: proving the Law of Sines, proving opposite sides of a parallelogram is congruent, etc.)

However, I suggest there be a section at the start under "Geometry Foundations" talking about proofs in general. For example, three types of proofs I have come across is Two-Column Proofs, Paragraph Proofs, and flow proofs. Two-Column Proofs have been shown across some of the videos but there has been a lack of explanation regarding writing them.

Under this new section, one video could be "What are Proofs?", another could be "Writing Paragraph Proofs" or "Writing Two-Column Proofs". Also, another video could be "Coming up with reasons to use justifying in proofs". Videos under this new section would give learners a better appreciation for geometry and proofs. This, in turn, could help students under what geometry is all about, because geometry isn't about just "shapes". There is much more to geometry then that.

alinaKA

12 april 2019 21:20

Thanks for this feedback, OUAT. We’re always interested in getting input from learners and while your request may take some time to implement, your comments are truly helpful.

Rodger Coyne

11 juni 2020 17:27

I second OUAT's recommendation for units within the Geometry course, but specifically within the assessments as well... I found videos on proofs from Khan Academy out on Youtube, and I found a few embedded in the course work for the Geometry course - thank you for that. But it would be great if the assessments tested student's ability to complete a proof. Perhaps if you had the elements of the proof provided to a student and the student had to place them in the correct order? Or if you had all the elements of a proof in the correct order but also a couple extraneous or unnecessary elements in there that the student had to identify. Just some ideas. Thanks again.

Another Geometry Content Suggestion: Proofs

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