i have seen lots of series, but none comes even close to the comprehensive school mathematics program (csmp) [NOT to be confused with ucsmp from chicago] published by the mid continent regional education lab in aurora, colorado. csmp is a k-6 complete math program that is on the national diffusion list. to get there they had to demonstrate proof of their claims. currently undergoing a several million dollar update funded by the gov't [eisenhower monies], csmp could have written the california framework and the standards itself. more than fulfilling the objectives in principle, it fulfills them in practice as well. it is very difficult to use csmp in a traditional teaching mode.
i urge anyone interested to learn more. there will be a booth at the boston meeting. talk to clare heidema, head of csmp.
they can be reached at McREL-CSMP, 2550 So Parker Rd, Suite 500; Aurora, CO 80014. phone: 303-337-0990. they have an e-mail address, but i can't seem to locate it. my experience with teachers who have taught it is great, with many primary teachers saying they never liked teaching math before using csmp. problems i have run into at upper grades center around the depth of the mathematics--it is very rich. teachers need someone they can call on if they don't understand some of the math.
depending on your viewpoint, a great asset or an annoying impediment is that teachers need to take a workshop to facilitate their getting comfortable with the program. the amazing thing about that workshop--i have led it many times--is that teachers learn some mathematics in the process. ["a square is not a rectangle! oh? why not? errrr. well, it just isn't.] and in the workshop, too, teachers learn how to ask questions that nurture discussion and the construction of understanding.