Math Interm Assessments

My students just took their math interms yesterday. Today I looked at the scores of the six students I am working with on graphs. I was excited to see that four of the students got all of the answers correct. One student missed one question, which row has the least, and one student got them all wrong. I usually pull the student in two groups of threes. I am going to pull her tomorrow to work one on one. She will be gone all week next week so I am not going to have much time to work with her before the end of the semester. Last week we graphed candies, this week we graphed dinosaurs, any suggestions for next week?