You guys know how much I like practical creations and here is my newest -- a counting board! My 9 year old has been using it for multiplication and division, but it's great for early learners who are adding and subtracting, as well. This board includes two layers of wood with dry erase areas to practice math in a practical way! These 6.75" wide by 3.75" tall boards are regularly $20, (does not include candy/beads/other counting items or dry erase marker -- I highly suggest picking up a bag of glass beads in the floral section of Dollar Tree). Note, to clean the dry erase areas, just a damp cloth. For periodic "deep clean," you can use a very slightly moist alcohol pad, but this is not encouraged for daily use as it can wear the finish off faster. Also, since this item uses real birch wood for the top and bottom layer, some amount of wood grain/wood knots (don't affect the use at all, just the appearance) are to be expected.