Celebrate student birthdays and teach basic math and graphing concepts with this delightful confection of a bulletin board set! Children just add their birthdays to the cake graph to create a mouth-watering classroom display. Set includes 70 pieces—an “Our Birthdays” banner, 12 monthly birthday cakes, 36 cake layers, 20 candles and a flag number line—plus a teaching guide. Banner measures 39" x 4 1/2".