So my students are doing an activity- blow up balloon, don't tie it off, tape a balloon to a straw, thread said straw with string, time how long it takes balloon to whizz down string after you let go of the end. Measure length of string, find speed of balloon. Repeat 3 times. Get average, then class average.

Questions I heard ALL PISSING DAY

Uh, how do we use this? (meter stick)
How many meters are in this yard stick?
How do we do inches plus full sticks?
How do we find the average? (not too surprised with that one)

one kid calculated that his balloon moved at over 1600 meters per second! That's over 200,000 miles per hour!

several students thought their balloons had traveled 184 meters.