Sally and juan’s science teacher has challenged her students to build a paper airplane that would stay airborne for ninety seconds. the students have two days to design and test their planes. the assignment will end with a "fly-off."
the teacher has given the students the problem. what is the next step in the technological design process?
a) building a model airplane
b) testing the model airplane
c) designing the model airplane
d) doing research on airplane design
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