Building Number Sense with the Linear Abacus®: 30 Beads Games

Linear Abacus The Games Book Series · Stage 1 · Number Sense 30 Beads Down  &  30 Beads Up Blog 2 of 12 Building Number Sense with the Linear Abacus®: 30 Beads Games What happens when a child stops counting every bead — and starts reasoning instead. Genovieve Grouios · Founder, Linear Abacus · Mathematics […]