Mathematics Educator (image) University of Chicago Caption Ninth-graders in Chicago Public Schools have significantly benefited from double-dose algebra (attending two consecutive periods of the subject) in ways that were not easily observable in its early years of existence. Credit Robert Kozloff/University of Chicago Usage Restrictions News organizations may use this image in connection with reports about Martin Gartzman or the Center for Elementary Mathematics and Science Education. 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.