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What Is a Radian?


In this learning activity you'll explore a graphical depiction of a radian for angular measurement.

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It was easier to learn from the old version. It asked, "How many radians in this circle?" and didn't reveal the answer right away, but made you step through hints. I don't remember the exact explanation it gave, but it made more sense and revealed what is a radian. The new site is flashier but the old one was more effective, at least for this segment.

Posted by ShoesWork on 3/14/2015 1:43:37 PM Reply

Yes, here it is... on this one, the presentation jumps from stating the number of degrees in a circle to "therefore there's 2pi radians in a circle". The old one made it more implicit that multiplication is happening, 2pi of something...

Posted by ShoesWork on 3/14/2015 1:51:58 PM Reply

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