The teaching is alive.Chen Yingjun

After his 2013 seminar in Rio de Janeiro, I asked Master Chen Yingjun why he had taught a Taijiquan (Tai Chi) topic in a different way than I was used to. The technical content was the same, but his didactic had changed. This was his answer, and he explained further:

The students change, I change, and the conditions change.Chen Yingjun

We’d expect the students to change, because that’s what they are practicing for. We usually don’t think about how much a Master changes with the years, as the the “Master” title conveys a sense of accomplishment — but a Taijiquan (Tai Chi) Master is also practicing intensively, and since his skill level is very high, he improves quicker than we could imagine.
Any given Taijiquan (Tai Chi) seminar can have very different conditions than another one: the number of students, their average level, the heterogeneity of the group, the form that’s being taught. All this requires adaptation from the teacher, and the better he is, the better he will be able to change his didactics to benefit his students.

So, expect changes from one year to the next, when meeting a Taijiquan (Tai Chi) Master. If you have a real Master teaching you, trust his judgment.