Students at Clarkdale put what they're learning in the classroom to a physical test Thursday morning.
They made their own hot air balloons out of tissue paper, using math to calculate the design.
The balloons were released to test their science lessons.
"Well, the reason that we're doing them is because in science we studied how hot air rises and cold air settles," said Kyle Mabry. "And in math we do it because we learn about length and angles."
Of course, the real test that all this works together is flying the balloon. Audrey Ivy's classes were involved in the field test.