Math-U-See

K started Math-U-See Primer over the summer.  We just did a little every now and then - whenever he wanted to play with the "special math blocks."  Once we started a structured schedule with our official school year, I realized Primer was not going to take him long to finish.  Some days he'd finish a whole unit since it was so easy for him.  While it was super easy for him, I decided that it was a gentle intro since it was fairly low-stress, and good review for some basics.  Depending on what else we are doing some weeks we've only done one unit, some weeks we've done three.  He has one unit remaining, so we'll be finished this coming week.  Now to decide what we're going to do next for math...I'm debating between an online Singapore program, the traditional Singapore books, or just doing a month and half of games I have stashed away from teaching/board games/Splash Math.