The Young Explorer titles can be completed in any order, so we recommend that parents choose the course they think their students will find most interesting by reviewing the samples available for each title.

Some parents find that the Earth Science, Anatomy & Physiology and Chemistry & Physics courses are best reserved for upper elementary students (4th-6th); however, younger students can certainly follow along and learn at their own level if older siblings are working through these courses. 

Our recommended course sequence for elementary science progresses in the order of creation and is one possible option to help you get started.