You’re pitching this stuff over their heads.
For those who don’t know baseball, the standard analogy goes like this: the students and I are a baseball team. I’m the coach, and it’s time for batting practice. I lob the pitches in, they hit them. As they become more experienced hitters, I pitch faster, they hit harder. Sometimes they miss. If I’m pitching over their heads, it’s not useful, because you don’t swing at a baseball when it’s over your head. Some people describe it as playing catch rather than batting practice, but you get the gist.
However, I don’t really want to be on a baseball team with my students, much as I love them. My analogy goes differently.
We have a ball, we have gloves, but we’re not playing catch. I’m tossing a ball to them. I’m slowly tossing it higher and higher. First they have to reach for it. Then they have to jump a little for it. Then they have to jump a lot. Then, even if they jump, they can’t get it.
I’m not trying to teach them how to catch. I’m trying to teach them how to fly.