The Nature of Middle School Learners' Science Content Understandings with the Use of On-line Resources.Published in:Journal of Research in Science Teaching, 2003, v. 40, n. 3, p. 323, doi. 10.1002/tea.10079By:Hoffman, Joseph L.;Wu, Hsin-Kai;Krajcik, Joseph S.;Soloway, ElliotPublication type:Article
Improving criminal justice.Published in:2011By:Hoffman, Joseph L.;King, Nancy J.Publication type:Opinion