@article{193639, note = {"Grades K-4."}, author = {Goodman, Jan M.}, url = {http://library.usi.edu/record/193639}, title = {Group solutions : cooperative logic activities.: [Teacher's guide] /}, publisher = {Great Explorations in Math and Science (GEMS), Lawrence Hall of Science, University of California at Berkeley,}, recid = {193639}, pages = {148 p., [3] folded leaves of plates :}, address = {Berkeley, CA :}, year = {1992}, }