Small Changes, Big Gains in STEM Classes (IMAGE) University of British Columbia Caption Low-cost, active teaching techniques -- particularly group work and worksheets -- substantially improve learning in university science classes, according to a new study involving 3,700 University of British Columbia (UBC) biology students. Credit Paul H. Joseph, University of British Columbia Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.