How many of us, when faced with the reality of teaching our children grammar, quickly scour the internet to find the "best" grammar program out there, one that will teach your little one all he needs to master the ACT/SAT. How much would your paradigm have to shift if I suggested you NOT begin formal grammar until 9 or 10, that you teach slowly and with a view to mastery learning, not warp speed rocket learning? Below is a great article from Simply Charlotte Mason on how Charlotte Mason advocated for the teaching of grammar. We use this slow and steady approach in our grammar class at Hilltop.
https://simplycharlottemason.com/blog/how-to-teach-grammar/