http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx NAEP Grading Scale http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx According to the National Assessment of Educational Progress http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx http://nces.ed.gov/nationsreportcard/hsts/howgpa.aspx