For students and other learners, Crabtree Plus features a range of interactive digital resources, as well as downloadable PDF activities, that reinforce and extend learning of core concepts introduced in series titles. Dynamic, engaging animations reinforce core concepts in an entertaining way, as characters Finn and Ava invite learners into the Student Discovery Lab. Interactive games let learners use their knowledge to experiment and solve challenges. Downloadable activities help them extend their learning independently. Crabtree Plus also features full access to series eBooks through the site. Clear navigation tabs at the top of the screens offer easy use and content access for students and learners.