An overview is provided of 50 years of research on naive theories in human biology. A set of recommendations aimed at confronting student misconceptions and facilitating conceptual change about the structure and function of the human body is presented, with five lessons described. (MNS)

A handbook for teachers of calculus and analytic geometry is described. Five categories of materials are included, with illustrative examples and a lesson plan. (MNS)

This study explored questions about the effect of lesson structure and cognitive development on science achievement of 42 students in grades four and five in British Columbia. Increased lesson structure did not significantly increase achievement, and interaction effects were generally nonsignificant. Conservation ability significantly affected…

Problem-solving activities of one form or another are encouraged at all times, with problem-solving lessons recommended at least every 10 to 12 days throughout the year. A number of ways to carry out such a heavy schedule are outlined. (MP)

An approach to problem solving broader than the traditional one most often used by instructors is described and recommended. Implementation of these ideas has the potential of increasing problem solving ability of students while promoting a fuller appreciation of the value of the process. (MP)

A series of modules designed for teaching energy concepts in a manner related to the classroom, school, and environmental settings is presented. The unit is seen as able to provide both teachers and students with a concept which has far-reaching implications. (MP)

Presents five integrated mathematics and science lessons in which students investigate the characteristics, behavior, lifecycles, and motion of mealworms and the feasibility of raising mealworms for profit. Purpose, time, materials needed, procedures, and extensions for each activity are provided. (MDH)

Presents a historical and content background of the metric system. Describes 1 of a series of integrated hands-on lessons for grades 4-7 to teach the measuring of volume with metrics. Provides a worksheet for the lesson and a concept map of the metric system. (MDH)

Presents activities to supplement lessons on length and mass measurement or as part of a unit on atoms or orders of magnitude. Provides a lesson plan using aluminum foil to estimate unit measures, calculate the foil's thickness, and do an atom count. (MDH)

Describes a teaching experiment that evaluated published supplemental materials used to aid preparation of lessons at the fourth grade level involving nonroutine word problems. Lists 12 insights gained that can be useful to teachers using commercially produced problem-solving materials. (MDH)