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Leonard Porter Ayres
1879 – 1946
70 books found
Books by Leonard Porter Ayres
Open-air schools
Leonard Porter Ayres
⏱ 2h 51m
Open-air schools
Leonard Porter Ayres
1910
171 pp.
Laggards in our schools
Leonard Porter Ayres
⏱ 3h 56m
Laggards in our schools
Leonard Porter Ayres
1909
236 pp.
A Measuring Scale for Ability in Spelling
Leonard Porter Ayres
⏱ 1h 2m
A Measuring Scale for Ability in Spelling
Leonard Porter Ayres
2018
62 pp.
The money cost of repetition versus the money saving through acceleration
Leonard Porter Ayres
⏱ 12m
The money cost of repetition versus the money saving through acceleration
Leonard Porter Ayres
1912
12 pp.
The Binet-Simon measuring scale for intelligence
Leonard Porter Ayres
⏱ 12m
The Binet-Simon measuring scale for intelligence
Leonard Porter Ayres
1911
12 pp.
An index number for state school systems
Leonard Porter Ayres
⏱ 1h 10m
An index number for state school systems
Leonard Porter Ayres
1920
70 pp.
The Cleveland school survey
Leonard Porter Ayres
⏱ 6h 3m
The Cleveland school survey
Leonard Porter Ayres
1917
363 pp.
Health Work in the Public Schools
Leonard Porter Ayres
⏱ 40m
Health Work in the Public Schools
Leonard Porter Ayres
2015
40 pp.
Turning points in business cycles
Leonard Porter Ayres
⏱ 3h 34m
Turning points in business cycles
Leonard Porter Ayres
1939
214 pp.
Health work in public schools
Leonard Porter Ayres
⏱ 59m
Health work in public schools
Leonard Porter Ayres
1915
59 pp.
The prospects for building construction in American cities
Leonard Porter Ayres
⏱ 35m
The prospects for building construction in American cities
Leonard Porter Ayres
1922
35 pp.
Measuring scale for handwriting
Leonard Porter Ayres
Measuring scale for handwriting
Leonard Porter Ayres
1912
No page data
A measuring scale for ability in spelling
Leonard Porter Ayres
⏱ 58m
A measuring scale for ability in spelling
Leonard Porter Ayres
1915
58 pp.
The relative responsibility of school and society for the over-age child ..
Leonard Porter Ayres
The relative responsibility of school and society for the over-age child ..
Leonard Porter Ayres
1911
No page data
A scale for measuring the quality of handwriting of school children
Leonard Porter Ayres
⏱ 17m
A scale for measuring the quality of handwriting of school children
Leonard Porter Ayres
1912
17 pp.
The relation of physical defects to school progress
Leonard Porter Ayres
The relation of physical defects to school progress
Leonard Porter Ayres
1909
No page data
Medical inspection legislation
Leonard Porter Ayres
⏱ 53m
Medical inspection legislation
Leonard Porter Ayres
1911
53 pp.
Business recovery following depression
Leonard Porter Ayres
⏱ 31m
Business recovery following depression
Leonard Porter Ayres
1922
31 pp.
The automobile industry and its future
Leonard Porter Ayres
⏱ 32m
The automobile industry and its future
Leonard Porter Ayres
1921
32 pp.
Child accounting in the public schools
Leonard Porter Ayres
⏱ 1h 8m
Child accounting in the public schools
Leonard Porter Ayres
1915
68 pp.