Common core encourages repetition through its focus on multiple representations. Not sure if I'd say Common Core itself encourages any particular method, nonet

Common core encourages repetition through its focus on multiple representations. Not sure if I'd say Common Core itself encourages any particular method, nonetheless many modern math curricula take this approach. I have an elementary age kid at a school using Everyday Math which is like this, and it is pretty terrible. The homework is, like you say, a few problems of one type, then jump to something else, then jump to something else. There is never mastery of anything. Not basic operations, not coloring squares, not anything. I'm not opposed to multiple representations, but there isn't enough focus or repetition, so there ends up being no mastery. While most of the kids could color 1/4 of a square and understand that conceptually, if I said color 40/160 of a square, they'd freeze because they don't work with numbers or basic operations enough to figure out that it is the same %.