Change of plans?

I hate to do this...but...I have to change our summer homeschool plans.  The pioneer trek has taken over my life since the end of April and it is getting worse.  My 12yo and 14yo have to make two pioneer dresses each plus the accompanying bloomers, bonnets, and aprons.  Thank goodness my mom is here for the summer to teach them how to sew their outfits.  Today I am admitting to myself that sewing is going to be their job for the next few weeks.  I hope to have time to fit in daily math.