Nonreactive measures for testing students' achievement comprised of questions that ask students to apply procedures, concepts, and facts to real situations. An attempt was made to use such questions in junior high school science classes. These tests provided more diagnostic information than was usually available from normal classroom tests. (PS)

Even though much has been written about cooperative learning in recent years, busy high school teachers contending with heavy curricular and teaching demands might not know much about the instructional method. Equipped with only a partial understanding of cooperative learning, some teachers may view it as a series of forced artificial constructs…

Many varieties of data acquisition systems are now available for science classrooms. Most systems consist of a range of sensors--typically called probeware--connected to an interface unit usually described as a datalogger due to its capacity to record data from these sensors. Although some systems operate independently, most units connect to a…