Ok so I'm switching my dc over to SM US ed. My ds is going to be using 2a/2b, and dd will be using EB 2b, and then switching to 1a/1b. For ds I won a set from ebay that included 2a HIG, 2a TB, 2b TB, 2b WB, Extra Practice 2, and IP 2b. I went ahead and bought the 2a WB some where else and I'm still looking for 2b HIG. I was wondering how you all go about using the EP and IP books along with the regular WB/TB. We will be using BLHFHG, so that has a schedule for the WB/TB. Do the HIG's mention the extra books, or do you just add them in when you think they fit. Also for dd I just ordered the 1a/1b WB's so far because the HOD site said that's all that was needed since they have a schedule and hands on math in their guide. She will also be using MEP Y1 some also, so do you think I would need the other books for her, or would just the WB's be fine?