Evaluates junior high students' understanding of certain aspects of the particle model of matter using a Piaget-type interview. Approximately 70 students from grades seven, eight, and nine in several midwestern schools in the U.S. were interviewed. (HM)

Describes a model that teaches a problem-solving process and provides students with the opportunity to practice, develop, and enhance their thinking skills. States that applying learning to real problems is needed to increase a student's thinking ability. Provides diagrams of the problem-solving cycle and levels of thinking. (RT)

Discusses the value of memorized factual material in science. Describes the use of mnemonic devices to facilitate memorization. Provides a list of 14 mnemonic devices commonly used in science other than ROY G. BIV, which is used to remember the colors of the visible spectrum. (CW)

Scientists and students often believe that if they just think harder about a problem, a solution will follow. However, thinking about one's thinking, or using metacognition, can be a more productive expenditure of mental energy. Introducing students to metacognition allows them to discover the value of reflection. This article presents a lesson on…

Presented is a list of over 50 commonly held misconceptions based on a literature review found in students and adults. The list covers earth science topics such as space, the lithosphere, the biosphere, the atmosphere, the hydrosphere, and the cryosphere. (KR)