Money-Saving Tip: If you already have the Horizons Math K kit (KM35), simply combine it with this partial set. You'll have everything you'd get in our Horizons Math 1-3 kit RM35, without having to buy several duplicate items. Includes: Counting tiles 1-inch (100), Folding meter stick (English/Metric), Geoboard 11x11 pi Sonlight resource: https://www.sonlight.com/products/manipulatives-filler-kit-for-horizons-math-1-3