this marble arch game on Pinterest, but made a few changes to make it more versatile.
I used a whole box, minus the lid, so the marbles wouldn't run everywhere. The top and sides are covered with scrapbook paper, because I'm lazy and didn't want to wait for two or three coats of paint to dry. I painted the front with chalkboard paint (sigh, how I love chalkboard paint!), so I can change the numbers depending on what each child is working on. For the example above, you shoot two marbles through the arches and then multiply the numbers. Of course you could add, subtract, or divide the same way. But why stick with whole numbers? You could use fractions, decimals, or negative numbers. You could play with fraction bars, so the child collects the corresponding fraction bars until they have made a whole. You could use pattern blocks to practice geometry and/or cover a pattern block card with a design. You could use coin amounts and have the child collect the corresponding coins until they reach a dollar (or other specified amount). I love having wipe-off games that I can customize to whatever skill is needed!