MATHEMATICS.
OPERATIONS EXTENDED TO NEGATIVE RATIONALS. General Learning Corp. Distributed by Silver Burdett Co., a division of General Learning Corp. Made by Davidson Films. 26 min., sd., color, 16 mm. (Elementary mathematics for teachers and students) Presented in cooperation with National Council of Teachers of Mathematics. Appl. author: General Learning Corp., employer for hire. © General Learning Corp.; 5Aug70; MP21071.
ORAL COMMUNICATIONS: GROUP PROBLEM SOLVING. McGraw-Hill Text-Films. 13 min., sd., color, 16 mm. Produced in collaboration with Joshua Tree Productions. Appl. author: McGraw-Hill Book Co. © McGraw-Hill, Inc.; 17Sep69 (in notice: 1968); MP21391.
ORBIT See
ANATOMY OF THE HUMAN EYE.
ORCHESTRA/BANK ROBBER. See
[CHAS. PFIZER & CO. TELEVISION COMMERCIALS]
ORGANIZATION. Case study no. 2. American Management Assn. 4 min., sd., color, 16 mm. (How to improve individual manager performance) © American Management Assn., Inc.; 6Aug69; MP21506.
ORIENTATION TO EDISON SCHOOL. See
INNER-CITY SIMULATION LABORATORY.