2.An inquiry-based curriculum can increase student achievement and narrow the gap between high- and low-achieving students.
2.1.Middle school teachers who used an inquiry approach increased the achievement scores of African American students, narrowed the achievement gap between male and female students, and found that their students were more interested in what they had to teach.
2.2. A study involving over 1400 students found that inquiry-based approaches in middle and high school language arts classrooms allow both low- and high-achieving students to make academic gains.