[crisdebern@gmail.com]

I would like to help you but I need more information.
First: Why the parents are watching. Close the window or put poster in order to cover the glass. Of course they will understand.
Second: How many kids do you have in your class? Are they seating or on the floor?
I had a class with multiple ages and my resource was using props for the little ones, gloves, toys, pieces of paper and I change the activities every 7/8 minutes. Two hours is too long without a break and depending on the group you should have an assistant for the little ones. When they were too rowdy I play train around the school and they were showing me the different words they learn. You will have some advance or quiet student that prefer to write or color. Have them using a folder personalize and in that way you will have the group in different activities. Hope this help. Let me know. Good luck! Maria