ShillerMath - Beginner Base 10 Math Workbook Units 1-9 - (Ages 3-6)

This was very helpful to add some semblance of structure at home when the COVID-19 shut down caught me totally unprepared to homeschool my preschooler. The book provides scripted lessons that I simply read aloud to my kid. And, it uses the Montessori method that my kid is used to at school, so that made the experience more positive for both me and my kid. I wish they’d make the next level lessons (like for kindergarten and up) available for purchase as a standalone or “a la carte” resources, instead of them being part of an expensive set.