Lani, do you feel lecturing is the only way to get information out to your students? If 80% of your students understand the materials while 20% struggle do you feel the 20% are not working hard enough? Lecture may not always be the best approach and I highly recommend you do some of your own research on teaching and learning to investigate other methods of delivering a lesson plan. Obviously if 100% of your students are responding well to your lectures then there is nothing that will need to be changed but if you consistently notice a few students struggling time after time then there are other methods that may prove to be helpful. James Jackson