I've been slowly plugging away at place value with Harry. Very slowly. Now I don't mean he's slow. I mean that we work a couple of days a week for maybe ten minutes at a time. Partly because that's about all he'll cheerfully take and partly because I just forget to do it with him. But it works. We can work at it for a total of twenty minutes one week and yet he gets it when the next week rolls along.
Aside from the Math U See videos and worksheets I made two helpers. One was suggested by the curriculum and those big, colourful, bristol board houses under the red dragon and behind the butterfly net are it. It's a set of place value houses for the MUS blocks. They held Harry's interest for about 4 minutes.
The second set of helpers were just some place value cards. I made a set for Catherine when she was younger and so made a set for Harry and just matched the colours of the cards to the colour of the proper MUS blocks. These he loved.
I think there's a game supplement where MUS recommends place value cards but damn it, I'm claiming creative genius on this one.
In any case he's done well with place value. I'll review it a bit this week but next week we'll move on to addition. I'm fairly sure he'll zoom through that.