If the elementary math curriculum wasn't a mile wide and an inch deep, and if teachers had the leeway to teach what was really necessary for future learning (and not to pass that year's FCAT), then more 3rd graders would become proficient in multiplication and division by the end of that year. I taught 3rd in a private school. Teachers had total leeway. We did not prep for standardized tests. I set a date for memorization of multiplication facts to 12 and made parents aware of it. All the kids were at least moderately successfuly by the end of the year. Yes, some of them had disabilities.