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Ed Begle
Film project contact sheet
H. Stewart Moredock
H. Stewart Moredock
H. Stewart Moredock
H. Stewart Moredock
H. Stewart Moredock
H. Stewart Moredock
H. Stewart Moredock
H. Stewart Moredock
H. Stewart Moredock
H. Stewart Moredock
Jack Abad
Jack Abad
Jack Abad
Jack Abad
John L. Kelley
Lesson II: Whole Numbers; Modern Learning Aids; A Brief Course in Mathematics for Elementary School Teachers; Lesson II: Whole Numbers
Lesson VI: Addition and Subtraction; Modern Learning Aids; A Brief Course in Mathematics for Elementary School Teachers; Lesson VI: Addition and Subtraction
Lesson XIV: Polygons and Angles; Modern Learning Aids; A Brief Course in Mathematics for Elementary School Teachers; Lesson XIV: Polygons and Angles