Suggestions for instructional improvement are offered for science teachers in this compilation of research summaries on specific areas of science education. This series examines the topic areas of: (1) higher-order cognitive skills (focusing on developing operational definitions and classification schemes for cognitive skills); (2) microcomputers in science instruction (synthesizing research findings on the effectiveness of microcomputers in teaching and learning); (3) learning styles (describing several models or systems that have attempted to explain an individual's learning style); and (4) metacognitive strategies (highlighting the values of metacognitive and metaknowledge strategies and describing the functions of concept maps and vee diagrams in metacognitive learning). (ML)