Observation

I was just observed for a lesson in which I was teaching the concept of time: hour, half hour and quarter hour. The students who I teach will sometimes learn a concept but then the next day, not appear to have retained what was taught. For the first time during a lesson with them, there were moments where they understood the concepts and other moments when they had no idea-all in a 30 minute period of time. It was so frustrating! Usually, if they understand something, it is for the whole 30 minute period and vice versa. With most of my groups, I just have to repeat things over and over again. If anyone has any ideas about how to teach time, please let me know. I used many hands-on activities and touched on all modalities of learning styles but for one of the kids, nothing seemed to matter.