Presentation software can be used as an interactive visual learning aid when incorporating web links and video. Students can work together in groups to create presentations, helping them cooperate and work as a team. There are many free presentation packages that can engage students, but the content and layout must be carefully considered to avoid boring the classroom with too many slides. Presentations should use limited text and include images, graphs or diagrams to benefit visual and print impaired learners. The hyperlink and notes features allow students to work through presentations in different orders or access varying levels of detail or supplemental materials.