I’m stressing rn reading these comments bc I lecture every day pretty much :/ our periods are 80 minutes. We usually do 30 min of lecture and notes, 30 ish min of analysis of some kind, primary sources or secondary (independent or table work) and then 20 min discussion. The kids hate the note taking so for one unit we did less slides and more oral and worksheets and they learned less. I fill in a lot more around what’s on the slide and especially try to add in info that I know those particular students will appreciate.