Here are 40 thematic lesson starters focusing on STEM activities while learning opposites. There is an art/craft idea, a snack idea, 2 literature suggestions, a STEM activity and a challenge activity. Each lesson is based on a pair of opposites like broken and fixed, dark and light,odd and even, curvy and straight, and many more. These ideas were compiled by a 33 year veteran in Early Childhood areas and are aimed at assisting child care providers, home school families, and early childhood teachers to enhance basic learning tenets. Activities are fun, simple, and promote basic readiness skills.