Gynzy is a service that offers pre-made activities for interactive whiteboards and websites. Much of their content is only available through a subscription, but they do offer a collection of 50 free activities that anyone can access. The free activities are appropriate as supplements to elementary school math, science, social studies, and language arts lessons. Each of the 50 free activities can be used on the Gynzy site or embedded into your classroom blog or website. One of the activities from the math section of Gynzy is embedded below.

Applications for Education
As mentioned above, these activities on their own are not enough to create a lesson plan. They could be good supplementary material to add to your classroom blog for students to use at home with their parents.