It was a useful technique for teaching species with shorter attention spans than Vulcans. T’Mia and Hari had helped him refine his teaching style. T’Mia went through each set of lecture notes he created and edited the material for a non-Vulcan student. Hari had suggested using different techniques to create interest and focus in more easily distracted students; including a free-flow interactive practical component in each class, not just during lab sessions. Spock now reserved fifteen minutes at the end of each class for a word association game in the language being studied. It improved and shared vocabulary, syntax, cultural connotations, and comprehension.