During the 2009-2010 school year, Marzano Research Laboratory (MRL) was commissioned by Promethean Ltd. to conduct a second year evaluation study of the effects of Promethean ActivClassroom on student academic achievement. This report describes the findings from the second year study along with aggregate findings from the first and second year evaluation studies. The combined results involved 4,913 students, 123 teachers, 73 schools, and 36 districts. Instructions for Action Research Projects Promethean Technology are appended. Technical notes are included. (Contains 75 figures.)