THE DEVELOPMENT OF NUMBER CONCEPTS IN YOUNG-CHILDREN

[31] Piaget J., 2003, PSYCHOL INTELLIGENCE

[32] SCHONELL FJ, 1954, PRACTICE BASIC ARITH

[33] *SCOTT COUNC RES E, 1942, EAR DEV NUMB CONC

[34] Stern Catherine, 1949, CHILDREN DISCOVER AR

[35] SWENSON EJ, 1949, U MINNESOTA STUDIES, V2

[36] THIELE CL, 1938, CONTRIBUTION ED COLU, V763

[37] AN ANALYSIS OF MEANING IN ARITHMETIC. II [J]. ELEMENTARY SCHOOL JOURNAL, 1949, 49 (07) : 395 - 400

[38] AN ANALYSIS OF MEANING IN ARITHMETIC. I [J]. ELEMENTARY SCHOOL JOURNAL, 1949, 49 (06) : 321 - 329

[39] WASHBURNE C, 1939, 38 YB NAT SOC STUD E, P299

[40] NUMBER READINESS [J]. EDUCATIONAL REVIEW, 1958, 11 (01) : 31 - 46

[31] Piaget J., 2003, PSYCHOL INTELLIGENCE

[32] SCHONELL FJ, 1954, PRACTICE BASIC ARITH

[33] *SCOTT COUNC RES E, 1942, EAR DEV NUMB CONC

[34] Stern Catherine, 1949, CHILDREN DISCOVER AR

[35] SWENSON EJ, 1949, U MINNESOTA STUDIES, V2

[36] THIELE CL, 1938, CONTRIBUTION ED COLU, V763

[37] AN ANALYSIS OF MEANING IN ARITHMETIC. II [J]. ELEMENTARY SCHOOL JOURNAL, 1949, 49 (07) : 395 - 400

[38] AN ANALYSIS OF MEANING IN ARITHMETIC. I [J]. ELEMENTARY SCHOOL JOURNAL, 1949, 49 (06) : 321 - 329

[39] WASHBURNE C, 1939, 38 YB NAT SOC STUD E, P299

[40] NUMBER READINESS [J]. EDUCATIONAL REVIEW, 1958, 11 (01) : 31 - 46