48 TEACHING SCIENCE IN SECONDARY SCHOOLS

 who have been warned of probable ques-
 tions group will ask.
 (4) Provide check-list for each student, devel-
 oped by committee of teacher and students.
 c. Sponsor clubs based on physics, physics hobbies,
 and science fairs. Examples photography,
 radio, airplane, projectors club, and Science
 Clubs of America.
 d. Show "new worlds to conquer" in the fields of
 air-conditioning, more effective use of electric
 power, increased efficiency of machines (most
 automobiles only five to ten percent efficient),
 new mechanical devices to lighten work, safety
 devices.
 e. Have many interesting books, dealing with
 physics, for class use.
 (1) Diagnose students' level of reading by
 standard reading tests, vocabulary tests or
 by observation of difficulties evidenced in
 their learning processes.
 (2) Have books available for each reading
 level.
 (3) Encourage student to increase reading
 speed and comprehension.
 (a) Of interesting material based on
 level of each student.
 (b) Show improvement as a time-saver
 in preparation for physics.
 f. Plan for student participation in all experiments.
 (1) Work in small groups or individually if
 experiment is short, simple, and not too
 expensive.
 (2) Use lecture demonstration for more
 difficult and expensive experiments, allow-
 ing different students to prepare and take
 part in demonstration and to answer ques-
 tions.