00901cam a22002651 4500 e 21000551 DLC 20260227111212.0 870805s1921 iaua b s000 0 eng c e 21000551 (OCoLC)16394977 U.S. Off. of educ. Library OCoLC DLC premarc LB5 .I6 vol. 2, no. 2 370.82 s Camp, Harold Laverne. Scales for measuring results of physics teaching, by Harold Laverne Camp, PH.D. Iowa City, The University [1921] 51 p. diagrs. 24 cm. University of Iowa studies in education ... vol. II, no. 2 On cover: University of Iowa studies. 1st ser., no. 54. October 1, 1921. Bibliography: p. 51. Physics Study and teaching. Grading and marking (Students) 20487 20487