FTR, her school uses Every Day Math. Dreadful!
We are having somewhat similar issues in math this year and her school also uses EveryDay Math. I really think it's an issue with Everyday Math because she does much better with a program like Khan. I don't think she likes all the jumping around and prefers to have a choice with what she learns.
ETA: her teacher lets them do any page out of the EM workbook they want but they continue to take the unit tests in order. So dd could be doing unit 5 workbook pages but taking a unit 3 test.
