1

Bernard Bolzano (1781-1848)

Year:
1917
Language:
english
File:
PDF, 1.02 MB
english, 1917
2

Cause and Effect II

Year:
1919
Language:
english
File:
PDF, 366 KB
english, 1919
3

On the Theory of Probabilities

Year:
1920
Language:
english
File:
PDF, 307 KB
english, 1920
4

Recent Work in Mathematical Logic

Year:
1918
Language:
english
File:
PDF, 212 KB
english, 1918
5

Cause and Effect IV

Year:
1919
Language:
english
File:
PDF, 54 KB
english, 1919
7

Existence

Year:
1919
Language:
english
File:
PDF, 268 KB
english, 1919
8

Facilitating problem solving in high school chemistry

Year:
1983
Language:
english
File:
PDF, 815 KB
english, 1983
14

Effect of using analogies on chemistry achievement according to piagetian level

Year:
1980
Language:
english
File:
PDF, 469 KB
english, 1980
15

A summary of research in science education—1978

Year:
1980
Language:
english
File:
PDF, 2.96 MB
english, 1980
16

High School Science Courses Do Make a Difference

Year:
1981
Language:
english
File:
PDF, 169 KB
english, 1981
21

The ACS-NSTA chemistry achievement exam - Beyond test results

Year:
1979
Language:
english
File:
PDF, 1.45 MB
english, 1979