We’ve tested the Planet Protector Academy with all elementary grade levels, with great feedback from teachers and strong engagement from students across the different grades.
That said, we have provided curriculum connections for the most suitable grades in terms of literacy levels, ability to engage their families in the missions and the maturity level of the videos (hey, not every grade 7 student will find the slap stick humour as funny as we do!).
You are welcome to use the resource with younger/older grades - you might just need to make some modifications as needed. Have fun!