TY  - GEN
AU  - Hattie, John
TI  - Visible learning : a synthesis of over 800 meta-analyses relating to achievement
SN  - 9780415476188
AV  - LB 1060
PY  - 2009///
PB  - Routledge
KW  - Teacher effectiveness
KW  - Teaching
KW  - Effective teaching
KW  - Learning
N1  - 27888
ER  -