Several suggestions are given related to the use of student-collected rocks in gaining understandings basic to the later mastery of concepts and principles of geology. Ideas related to language development, classification schemes, observation skills are suggested. (EB)

Presents a biochemistry experiment for college students that illustrates the purification of an enzyme. (HM)

Discusses using the teaching technique of requiring students to describe what will happen prior to conducting demonstrations and experiments. (SL)

Suggests taking physics to a playground to manipulate the apparatus and to examine the equipment; applying physical principles such as the pendulum model to swings and angular momentum to the merry-go-round. (BR)

An approach to teaching biology to mixed ability groups which primarily relies on individualized instruction is described. (BR)

This document presents a series of physics experiments which allow students to determine the value of unknown electrical capacitors. The exercises include both parallel and series connected capacitors. (SL)

The laboratory approach to science and mathematics is described as a refreshing change for both teacher and students. Suggestions are given for planning a laboratory-based program. Guidelines for teachers of both handicapped and non handicapped are included. A school for handicapped children in Minneapolis is described. (EB)

Describes some of the advantages of an elementary science activity in which students discover that blowing through a straw into a bromthymol blue solution changes the color to yellow. Directions are provided for preparing the bromthymol blue solution. (JR)

Presents a series of lessons, developed to give children the opportunity to construct a classification system for animals and to analyze the classification. Procedural information and suggestions for preparation of materials are included. (Author/EB)

Describes an experiment using an analog computer which allows students to work with familiar problems, and to program the computers themselves. (SL)

Discusses the use of self-directed learning in a large group class. Describes a workshop for developing group communication skills. (YP)

Presents the following chemistry lecture demonstrations and experiments: (1) a versatile kinetic demonstration; (2) the Bakelite Demonstration; (3) applying Beer's law; and (4) entropy calculations. (HM)

Presents a formulations laboratory project in which secondary school students attempt to prepare a common household product from laboratory chemicals. (HM)