Khan Academy Kids is an award-winning mobile app for students in Pre-K-2nd grade. Download the app from the Apple iTunes, Google Play, or Amazon app store, and then follow along with this video to create your account. [1 min, 41 sec]

For this activity, students will explore creative ways that materials can be reused. They will then create a commercial to advertise innovative ideas. Follow-up suggestions include having a sale or contacting local secondhand stores.

Quiz Maker is a tool for both teachers and students to create a questionnaire. Registration is free. Quizzes can be shared or kept private. Results can be stored online and used for evaluation purposes. The ads can be distractin', and it...