measure and measurement should both be accepted, as they are used both in this lesson and the dictionary also gives both
A medida is the "value" of the measurement.
A medição is the act of measuring.
yea, this needs a lot of work...
Check the previous discussion here: http://duolingo.com/#/comment/74862
I report all the glitches I encounter, but nothing seems to change, how long should I expect to wait?
I get replies to some of my reports saying that they "now accept a phrase" that I thought should be accepted. So it seems they do look into the suggestions--please keep reporting!
i agree with Frencesca