Presents a case for using wood frogs to study biology with students. Offers tips on where to find the eggs, how to care for them, what to expect as they hatch, and how to engage students in a study of their stages of development. (DDR)

Studied whether 41 Japanese 6-year olds' voluntary participation in animal care activities in school was associated with children's understanding of animal care procedures. Found that children experienced in such activities had better understanding of animal care procedures than those who were not, but levels of participation were not associated…

Provides information on the use of a toy engine with no visible power source that is designed to demonstrate the conversion of low-temperature thermal energy to mechanical energy by means of a Nitinol loop wrapped around a system of two pulleys. (DDR)

Presents a rationale for acknowledging the importance of movement to learning to help children understand abstract concepts. Includes seven activities that employ movement to enable students to understand the nature of the solar system. (DDR)

Outlines a class project in which students explore characteristics of paper towels and paper towel advertising. Students design a variety of experiments related to paper towels and their claims. Provides four activities. (DDR)

Argues that the common assumption about the lack of intermediate forms in evolutionary history is inaccurate and misleading. Points out that there are many transitional forms, although special creationists refuse to recognize them as such. (DDR)

Introduces a method for constructing phylogenies using molecular traits and elementary graph theory. Discusses analyzing molecular data and using weighted graphs, minimum-weight spanning trees, and rooted cube phylogenies to display the data. (DDR)

Describes the use of dioramas in natural-history museum exhibits. Discusses the roots of dioramas, the process of creating an illusion, the purposes of dioramas, and criticisms of the use of dioramas. Contains 20 references. (DDR)

Describes science activities for preschool through primary-grade children, focusing on goals of science education, science processes, and characteristics of high-quality science activities. Notes that hands-on activities explore scientific concepts such as volume, gravity, heat conductivity, and condensation. (KB)

Presents a classroom activity in which students identify the possible ways of reducing NOx emissions to reduce ground-level ozone. (YDS)

Uses questioning techniques to teach about caloric consumption and weight gain. Starts with defining questions about calories and includes the stages of measuring calories, analyzing data, and conducting inquiry research. Includes directions for the experiment. (YDS)

Advocates using computer imaging technology to assist students in doing projects in which determining density is important. Students can study quantitative comparisons of masses, lengths, and widths using computer software. Includes figures displaying computer images of shells, yeast cultures, and the Aral Sea. (SAH)

Teaches genetics and inheritance using the characters from Sesame Street. Asks students to create a gene map of their favorite character and determine those genes passing to the next generation. Includes a genetics activity sheet and genetic information on the characters. (YDS)

Describes the use of an oven bag as a sterile chamber for culture initiation and tissue transfer. Plant tissue culture is an ideal tool for introducing students to plants, cloning, and experimental design. Includes materials, methods, discussion, and conclusion sections. (SAH)

Describes how drawing can be used as a tool to help students develop and document more complex understandings not often used in science instruction. Explores how drawing can be used to learn about animals. Includes student illustrations. (SAH)