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Students examine the concept of angular momentum and its correlation to mass, velocity, and radius. They listen to a teacher-led lecture, conduct an experiment with rotational inertia, angular momentum, and rotation speed by making variations of spinners and comparing the different spins they produce, and answer discussion questions.
Fourth graders apply information regarding simple machines along with the math concept "ratios." The teacher introduces the concept that technology is the application of scientific knowledge and mathematics concepts to solve a problem. This is repeated with the wheel and axle.
Learners work in teams they select a low-power toy, game, or electrical deive to "solarize," or convert to solar power. They determine the operating voltage of their chosen device and design a solar array to provide this level of voltage. Pupils determine a series of conditions under which they test their toy's performance and, if needed, adjust the size of their solar array to provide more current.
Students Experimentally determine the smallest deflection to load ratio (Â¿Â¿y/P) for a given length of four different beam designs of balsa wood. They analyze the results for different beam designs and relate the equation that describes how deflection varies with the geometry of the beam.
Students identify the basic components of male and female Roman costume, both for children and adults and also, the major social ranks of Imperial Rome and the dress reserved for each gender and rank. They also identify some of the activities considered appropriate for each gender and rank and the appropriate Latin names for clothing and accessories.