Simplifying the combination of subjects assigned to high school teachers;
a way to improved instruction in the high schools of Illinois,
by Edward F. Potthoff.
|Main Author:||Potthoff, Edward F. 1898-1960.|
Urbana, University of Illinois 
High schools > High schools / Illinois > High schools / Illinois / Curricula.
Teachers > Teachers / Training of > Teachers / Training of / Illinois.
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||University of Illinois at Urbana-Champaign|