This report focuses on how students across the nation, of three different ages--9, 13, and 17--revise their own writing. The report is based on detailed analyses of two writing assignments: the first required 9-year-olds and 13-year-olds to write and revise a school report about the moon, and the second required 17-year-olds to write and revise a…

Each year since 1969, National Assessment has gathered information about levels of achievement. This report summarizes the National Assessment study of changes in science achievement for 9-year-olds, 13-year-olds, and 17-year-olds attending schools. Having assessed achievements in science twice, National Assessment can report information on the…