Lancaster County Schools began working with National Training Network to implement the Algebraic Thinking curriculum in middle grades in the summer of 2006. Teachers were trained during the summer of 2006 and 2007.  National Training Network provided onsite coaches in the middle schools in Lancaster County during the 2006-2007 and the 2007-2008 school years. Seven hundred and eighty three (783) students were included in this study. These students were selected based on their previous year’s end of grade RIT scores (bottom 55%) and teacher recommendation.

The graph above represents county wide students at all three grade levels exceeded the target RIT growth scores.  Students in grades 6 and 7 exceeded the target RIT growth scores by 23% while students in grade 8 exceeded the target RIT growth scores by 43%.