Singapore Math Earlybird Start Up Science 1, 2, 3, and 4 [4 Books] Winter Bottom Book 3B covers mental addition

Book 3B covers mental addition & subtraction

Overview : Front button closure

The sideplate and the corners of the bottom plate are rounded

Wear these to the beach for comfortable and secure in-and-out of water play then rinse them off and wear them to the movies

All ergoPouch fabrics are dyed with non-toxic water based dyes

Singapore Math Earlybird Start Up Science 1, 2, 3, and 4 [4 Books] Winter Bottom Book 3B covers mental additionEarlybird Start Up Science is a series of four books for Grades 1 and 2. This series opens the door to the challenging world of scientific discovery and introduces young learners to scientific concepts. Simple explanations of concepts are charmingly illustrated and reinforced in the interesting activities and experiments that follow. The books, each with 29 exercises, are filled with stimulating facts and activities covering everything from daily life