What Is a Radian?
By Roy Peterson
In this learning activity you'll explore a graphical depiction of a radian for angular measurement.
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