Mokomoko Zemi Pre-Course (2-3 year olds) The Pre-Course (2-3 year olds) is designed to teach the basics, including counting numbers, understanding concepts like size, quantity, length, height, and weight, and acquiring basic language skills through learning the names of objects. This is for the November to January issue. I put the materials that arrived in an envelope into a bag for the photos. Brand new, unused. I will take waterproof measures before shipping. Thank you for your understanding. Instant purchase is welcome!