“…The Easy with Eve is an ATS for teaching mathematics suitable for primary school students (Sarrafzadeh et al., 2008). It is mentioned as the first fully functioning ATS (Ivanova, 2013). Initially, the system was designed as an automated face expression analysis system (S. Alexander, 2005; Sarrafzadeh et al., 2004) and gesture analysis (S. Alexander, 2005), but it ultimately uses real-time face expression analysis (Sarrafzadeh, Fourie, Alexander, Overmyer, & Shanbehzadeh, 2014) for mathematics.…”