My kids used both EPGY and Redbird. I think Redbird has been much better designed than EPGY. It has projects for each level which my DS especially liked.

The methods they use are aligned to common core. So arithmetic is done quite differently than what we used growing up. There are entire discussions on the merit/demerit of the new approach. So will not repeat here.

Last edited by VR00; 01/05/16 09:41 AM.