Also appropriate: Free Printables or other fun activities that could easily be used or adapted for workboxes!
Get this and other printables free by subscribing to my weekly newsletter
We have these Base 10 Stamps. My son likes to stamp them in the colors to match the MUS curriculum (so red, blue and green). We also use number stamps, as he is not writing but a few numbers at this point.
Any Base 10 blocks would work, or just use the ones with the printable!
I found these that would be GREAT with a light table!! Other options and supplies needed: