The purpose of this experiment was to examine the effects of weekly interactive science homework on family involvement in homework, student achievement, and homework attitudes. Sixth and eighth grade students (N =253) participated in the 18-week study. Six classes completed interactive assignments with directions for family/parent involvement. Four classes completed the non-interactive assignments (no family involvement directions). Interactive students reported significantly higher levels of family involvement than non-interactive students. Students who more regularly involved family members in the assignments completed more assignments, and TIPS students turned in more accurate assignments than non-TIPS students. TIPS students also earned significantly higher science report card grades. Results indicate the benefits of interactive homework for family involvement, science attitudes, and student achievement in the middle grades.