New Content and Review

April 02, 2003 1 min read

The following shows the average percentage of lesson time devoted to reviewing, introducing new content, and practicing new content in 8th grade math classes.

NOTE: Percentages may not add up to 100 because of rounding and the possibility of coding portions of lessons as “not able to make judgement about the purpose.”

SOURCE: Third International Mathematics and Science Study 1999 Video Study