New animation: Sum of the Angles in a Triangle.
This is in the genre of “proofs without words”, but of course its pedagogical power comes from students and teacher actually using words to discuss what happens.
–Henri
New animation: Sum of the Angles in a Triangle.
This is in the genre of “proofs without words”, but of course its pedagogical power comes from students and teacher actually using words to discuss what happens.
–Henri
Henri's Math Education Blog 