Top 10 Summer Themes for Preschoolers - Living Montessori Now Jun 17, 2014I’ve chosen a number of themes that can be taken outdoors. You don’t need to change your theme often unless you want to. You can do a theme each week if you and your preschooler would enjoy that. One theme per month would be a great option, too. Just have fun! Top 10 Summer Themes Author: Deb Chitwood 100 Summer Camp Themes - Summer Camp Programming Last summer I based my 6-week programs themes by celebrating “Today is National ___ Day”! I researched every month and found many “National __ Day” celebrations. We had a BBQ for “National Cheeseburger Day”, we made rainsticks and rented huge waterslides for “National Rain Day”, and we had breakfast for “National Pancake Day”.