Standardized Test, Schorling-Clark-Potter Arithmetic Test

By the 1920s, mathematics educators increasingly turned to standardized tests as a way to measure what students knew, to predict what they could learn, and to determine where they had difficulties. This test had sections on addition, subtraction, multiplication, and division. The final two sections were on fractions, decimals, and percentages; and on a combination of problems. The authors were Raleigh Schorling (1887–1950), John R. Clark (1887–1986), and Mary A. Potter (1889–1993?). World Book Company published the four page leaflet in 1928. Versions of the test would be published for decades.
By 1926, when the test was first published, Schorling and Clark had obtained their PhDs from Teacher’s College of Columbia University. After earning his doctorate, Clark headed the mathematics department of the Chicago State Teacher’s College, and then in 1920 returned to teach in the Department of Mathematics Education at Teacher’s College. He remained there until his retirement in 1952.
Schorling taught at the Lincoln School of Teacher’s College. He left in 1923 to become the first principal of the University High School at the University of Michigan, and completed his Teacher’s College doctorate in 1924. He remained at Ann Arbor for the rest of his career, serving as well as a professor of education at the university. Mary Potter obtained her undergraduate degree from Lawrence College in Appleton, Wisconsin, in 1913. She taught in several Wisconsin school districts, settling in Racine by 1920 and living there the rest of her working life.
At the Lincoln School, Schorling and Clark worked to reform arithmetic education by emphasizing the affairs of daily life. Their efforts led them to author new textbooks as well as new tests. Schorling, Clark, and Potter were all active in the establishment of the National Council of Teachers of Mathematics in 1920.
Currently not on view
date made
Schorling, Raleigh
Clark, John R.
Potter, Mary A.
place made
United States: New York
Physical Description
paper (overall material)
overall: 28 cm x 22 cm x .1 cm; 11 1/32 in x 8 21/32 in x 1/32 in
ID Number
catalog number
accession number
Credit Line
Gift of Ruth E. Myer
Psychological Tests
See more items in
Medicine and Science: Mathematics
Arithmetic Teaching
Science & Mathematics
Data Source
National Museum of American History, Kenneth E. Behring Center


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