These Junior Learning Word Builders Activity Cards come in a set of 40-word building cards with picture and color guides for use with Tri-Blocks tub. Children follow the activity cards' progression as they learn to sound out and build words. The set of building cards includes 5 levels to follow-orange, violet, green, purple, and red. They teach phonemic awareness, synthetic phonics, and spelling. The cards are self-checking with answers on the back.