Jessica Ballard, an early childhood teacher, checks in with Irshad Kalombo, 4, center left, and Alyvia Weyh, 5, center right, as they work with tag bags to learn about numbers while Natalee Flores-Ortega, 5, left, and Kayne Buchanan, 3, right, also work with tag bags to learn about numbers during the work group portion of an early childhood class for kids age three to five Monday, Feb. 1, 2016, at Harvey Dunn Elementary School in Sioux Falls.