This guided inquiry activity was developed to help students "view" an equilibrium system from the particulate level and make connections to their macroscopic observations. Part I helps students observe a physical equilibrium system in which water is transferred between two larger containers. In Part II, students examine what happens to a chemical…

A practical exercise for developing a simple cost-effective solar ultraviolet radiation dosimeter is presented for use by middle school science students. Specifically, this exercise investigates a series of experiments utilising the historical blue print reaction, combining ammonium iron citrate and potassium hexacyanoferrate to develop an…

Presents the author's reasons for supporting the CHEMS program. Also characterizes aspects of his teaching regarded as significant in teaching chemistry, including prompt return of assignments, test retakes, videotaping. inclusion of organic chemistry, ability grouping of students, avoidance of specialization, and departmental testing. (CS)

DESCRIBED ARE CURRICULUM MATERIALS PREPARED BY 22 ELEMENTARY AND SECONDARY SCIENCE COURSE IMPROVEMENT STUDY GROUPS. AN INTRODUCTORY SECTION DEALING WITH THE NEW CURRICULUMS DISCUSSES THE FOLLOWING TOPICS--(1) CHANGES IN THE ACTIVITIES AND RESPONSIBILITIES OF TEACHERS AND STUDENTS, (2) COURSE CONTENT AND ORGANIZATION, (3) CURRICULUM MATERIALS…