Montessori Phases of the Moon 10 3-Part Cards.10 high-quality photographs show the phases of the moon with beautiful photo examples. The 10 phases are: new moon, young moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, waning crescent, and old moon.Use Montessori's 3-part Cards to identify the different phases of the moon. These cards provide a great way to help your child learn. For differentiation, there is a dotted printing and blank version of the