Recently I went to a workshop with Chen Bin, son of Chen Zhenglei. It was about the Chen style basics, so we did a lot of pole standing (Zhan Zhuang), Silk Reeling exercises (Chan Si Gong) and footwork.

And of course, Chen Bin talked to us about various other topics. At one point he talked about how important it is to not only go to class, but to practice for oneself, too. That class is to LEARN something, but it is necessary to PRACTICE it, too. He gave a really good example of that: