The study of physical phenomena by means of guided experimentation and experimental thinking, allow students to infer and understand the reason for the different variations that evidence. Parabolic motion of a projectile powered by a cannon under the spring mechanism, generates discussion regarding the choice of the proper angle, according to a certain distance, a known average initial velocity, and a given height. Give the blank is a great encouragement, however, being able to explain which conditions of the environment influenced the failed launches, generates a space of dialogue and a durable concrete learning.
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