Both the percentages and raw scores only have two blue bar graphs. This is because only two students received more than a 0 on the pre-assessment. The other students 12 students received a 0 on a pre-assessment and thus do not have a bar to compare to the post-assessment. Additionally, HL did not take the pre-assessment because she transferred into my class towards the end of my 10 days and thus did not have a pre-assessment to compare to the post. She did not receive a 0.