Personally I cannot stand them nor find any value in them. I have come from a top performing school in a top performing county where we were not required to use lesson plans. Now I am in a struggling school in a lackluster county and they put strong emphasis on lesson plans and making sure they include all the required mundane information. I am not exaggerating when I say 100% of the faculty at my current school thinks it is just pointless busywork. And I cannot help from roll my eyes when our in house academic coach (I do not know why we have one) preaches that lesson plans are crucial for more effective teaching and all I want to do is scream no they do not, I have come from a better performing school and district and they did not use lesson plans!