Has anyone here tried any of the Duke TIP Independent Learning programs? In particular, I'd love to know if anyone's child has done the Grade 4-6 math pack and what s/he though of it (too easy, too much reading, fantastic, etc.), since I'm thinking of buying it for my son to do over the summer.

Thanks in advance for any information!

We've done the Cryptography class. It was a good class. There was more writing than I expected.

I'd also like to know this.