Abell, Sandra K <br/><br/>
The effect of a problem solving in-service program on the classroom behaviors and attitudes of middle school science teachers 

 - 649-667 
 - 1992 Vol. 29, no. 7 
 = JOURNAL OF RESEARCH IN SCIENCE TEACHING 
<br/><br/><label>Encabezamiento--Término de Indización: </label>CLASES INTERMEDIAS EDUCACION CIENTIFICA FORMACION DE MAESTROS INVESTIGACION EDUCATIVA PRACTICA DOCENTE