Hello, I am exploring Gattegno Math to introduce to all of my children, grades 2,4,7,9. I am looking for any guidance on using this system, pros & cons. Also, can I start them on it so late in the game for my 7 and 9th graders? We will be new to C-rods. Also, is it just an add on curriculum to use with a main curriculum, or is it stand alone. We are usuing Singapore now for 2&4 , Rodd & Staff for 7, and Math U See for 9th, wondered if Gattegno is anything like Math U See.
Thank you for any advice. Thanks so much!