If you are looking for apps to use with a classroom with limited iPad access, Venn Diagram is the app for you! This app can allow your classroom to create Venn Diagrams with ease and make them look good too! Imagine you have a room full of students and one iPad hooked up via a Apple TV. You could pass the iPad around and have students add their thoughts while everyone can see the changes made via the projector.
This app can also be used by individual students to create diagrams and then share them via email or as a jpg.