Discover the wonder of words! Teach spelling and sentence construction by having children form words by linking 3 letter cards. Have them practice word skills on front, and then read the sentences on the back. Self-checking cards create playful scenes, beginning words, and rhyming sentences. Great for school, home, or on the go. Includes 56 two-sided cards, each measuring 3 1/8" x 5 1/4". Ages 3 & up