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 the program's early years of existence.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/o...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/o...