Figure 4 The codification Language Barrier (Figure 4) depicts a maths lesson familiar to the students. To the left, three students are busily cutting coupons out of a supermarket flyer. These students are on task, helping each other and contributing to the shared goal of completing their task. To the right, one student sits apart from the others, head down and silent. She is not doing anything observable, which sets her apart from the others. This codification instigates discussion around friendship, communication, language barriers, and awareness of others.