Sum Building Set
$49.95
Appealing to children’s natural instincts to sort and collect, these durable and tactile pebbles can be used in sand and water both inside and outdoors. Each pebble is cast from a special stone and resin mix. They are engraved and hand painted with a number, making them highly appealing.
This set includes a leaflet full of ideas and activities along with two of each number 0–20, two of each operator +, – and =, one of each operator x and ÷.