u/Bright_Bullfrog_784

I teach 6th. My school currently has Savvas envision. After about 6 years with little to no improvement in our math scores we are looking into other curriculums. They have requested samples of envision plus and Saxon. Has anyone used these? What are they like? Pros and cons?
I am concerned with envision plus not being much different from the current edition we have. I teach in PA so it needs to be aligned with PA standards. Any other recommendations I could bring to the team meeting?