This document outlines several math and science activities for early childhood students. Activities include matching games with leaves and numbers, classifying objects by color, comparing apples and oranges, making shapes with pipe cleaners, discussing spatial concepts on the playground, building fraction pizzas, creating patterns with blocks, ordering numbers, mixing play dough using measurement, tasting fruit and graphing favorites. The presenter found that these no-cost activities using materials from the classroom were engaging for students and served as good transitions between lessons.