The leading theory for the origin of the Moon is the giant impact hypothesis, in which the Moon was formed out of the debris left over from the collision of a Mars sized body with the Earth. Soon after its formation, the orbit of the Moon may have been very different than it is today. We have simulated the phases of the Moon in a model for its…

Empirical studies have reported difficulties, confusion, and lack of understanding among students at all levels of instruction regarding the issue of weight--gravitation--weighing relationships. This study examined the impact of a new conceptual framework of weight, on a small group of 7th-grade students (N?=?14) in a middle school in Israel. This…

This research studied a group of three preservice elementary teachers creating a narrated stop-motion animation (Slowmation) from start to finish in 3?hours to explain the challenging concept of "phases of the moon" to elementary school children. The research questions investigated the preservice teachers' learning before and after the…

Students' difficulties with accurately conceptualizing the relationships among the Earth, Moon, and Sun are well documented. Any teacher who has seen the film "A Private Universe" (Schneps and Sadler 1988) will remember the challenge the interviewees experienced when trying to explain their understanding of this phenomenon. This paper describes a…

Using a science lesson on lunar phases as a basis for discussion, the author suggests ways that teachers can provide literacy instruction on multimodal texts in science. The author asserts that multiple representations are central to the discipline of science, and that students require explicit instruction on how to critically read, evaluate, and…