TY  - JOUR
DA  - 1985
LA  - eng
IS  - 2
M2  - 120
PY  - 1985
SN  - 0021-8251
SP  - 120-131
T2  - Journal for research in mathematics education
TI  - Construct a sum: a measure of children's understanding of fraction size
UR  - https://nbn-resolving.org/urn:nbn:de:0070-bipr-25387
Y2  - 2024-11-21T22:33:39
ER  -