As an amateur astronomer, I volunteer as an astronomy partner with a local elementary school science teacher in a program called Project ASTRO. Recently my teacher partner and I introduced her fifth grade students to the changing phases of the Moon. As part of this exercise, the students are teamed into groups and are given set of randomly arranged photographs of the Moon in its various phases and are asked to arrange them in the sequence they think the phases change. Since this is accomplished in the classroom, without being able to see the Moon, the students have to work as a team to best recall what they each remember about how the Moon changes phases.
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