Set of 40-word building cards with picture and color guides for use with Tri-Blocks® Tub. Children follow the progression as they learn to sound out and build words. 5 levels to follow - orange, violet, green, purple, red. Teach phonemic awareness, synthetic phonics, spelling. Cards are self-checking with answers on the back. Phonics Tri-Blocks® Tub sold separately. 5 - 6  1 - 2