How many kits you’ll want for your family depends entirely on the experience you are looking to create. The starter kit comes with plenty of supplies for two children; however, the projects cannot be done simultaneously. If your kids are good with taking turns or you are hoping to engage them at different times during the day, one starter kit will work. If you are trying to create a “classroom-like” environment where multiple children are creating side by side and, as a result, you get some mama/papa peace, then we recommend purchasing multiple starter kits.