Misconceptions about sinking and floating phenomena are some of the most challenging to overcome (Yin 2005), possibly because explaining sinking and floating requires students to understand challenging topics such as density, force, and motion. Two scientific principles are typically used in U.S. science curricula to explain sinking and floating:…

This article addresses misconceptions surrounding the Coriolis force and describes how it should be presented as a function within inertial and noninertial frames of reference. Not only does this demonstrate the nature of science as it strives to best interpret the natural world (and presents alternative explanations), but it offers a rich…

Science is always changing. Its very nature requires that scientists constantly revise theories to make sense of new observations. As they learn science, students are also constantly revising how they make sense of their observations, which requires comparisons with what they already know to process new information. A teacher can take advantage of…

Although inquiry is more engaging and results in more meaningful learning (Minner, Levy, and Century 2010) than traditional science classroom instruction, actually involving students in the process is difficult. Furthermore, many students have misconceptions about Earth's seasons, which are supported by students' prior knowledge of heat sources.…

Despite our best teaching efforts, many students hold misconceptions related to the roles plants play in gas-related processes (Amir and Tamir 1994; Hershey 1992; 2004). In an effort to remedy this problem, the author presents a series of activities that address common plant-related gas-process misconceptions held by middle school students. The…

Given the commonness of pets in communities throughout the United States, Canada, and Australia, among other countries, pet stewardship should be a natural topic of study for the integration of science, mathematics, and technology. Therefore, the term "stewardship" will be examined by applying observation and research to shape our…

When students enter the classroom, they often hold prior knowledge or conceptions about the natural world. These conceptions will influence how they come to understand what they are taught in school. Some of their existing knowledge provides good foundation for formal schooling, but other prior conceptions, however, are incompatible with currently…

Despite over 10 years of reform efforts, research still shows that students typically have inadequate conceptions of what science is and what scientists do. Many science students, as well as some teachers, use a single "scientific method" that, "proves a hypothesis" by systematic data collection. By following a prescribed set of steps, and writing…

Many secondary students hold misconceptions about evolution, even after instruction, that are often inconsistent with what is accepted by evolutionary biologists. Understanding evolution is difficult due to major conceptual difficulties concerning variation, differential survival, adaptation, and natural selection. In this article, the author…

Introduces a physics activity on buoyancy. Includes a list of materials and the procedure for the activity. (YDS)

Students can use seed characteristics to discriminate between the different kinds of legumes using taxonomic classification processes of sorting and ranking, followed by construction of taxonomic keys. The application of the Learning Cycle process to taxonomic principles, hierarchical classification, and construction of keys presents the…

Integrates story telling into a science activity on the density of liquids in order to increase student interest. Shows the relationship between mass and volume ratio and how they determine density. Includes teacher notes. (YDS)

Ausubel's theory of meaningful learning is described. Rote learning is contrasted with meaningful learning, which builds upon previous knowledge. Student's prior experience may leave them with misconceptions. Although erroneous, misconceptions are frequently logical and resistant to change. The author provides six strategies for facilitating…

Presents hands-on activities to teach about the causes and consequences of strokes. (YDS)

In teaching middle school students about diseases and microbes, it is surprising to discover how little they know about transmission. Misconceptions range from the idea that "giving a disease to someone" actually means "giving it away so you didn't have it anymore yourself" to a lack of understanding that tiny living things,…