Grades K to 3. Time flies when kids are putting together these sturdy clock puzzles. Simply match the analog time shown on a clock puzzle piece to its digital time printed inside the tray. Pieces will only fit with the correct time! Puzzle 1 teaches time on the hour, half hour, and quarter hour. Puzzle 2 includes time in 1- and 5-minute increments. Set includes two 24-piece puzzles, each measuring 7" x 11".