My school plans in chunks e.g. 2 weeks of place value, 3 weeks of addition, 3 weeks of measure (Can't quite remember the actual time without my folder by my side. Rather than do the blocks A,B,C,D etc we hammer one at a time. It has its pros and cons but my question is this... does anybody else do anything similar? If you do do something similar how do you make your medium term plans.