In this video, I share 6 rekenrek math centers you can use tomorrow in your classroom all using math racks or number racks! These math workshop stations are easy to prep and can be used again and again, perfect for kindergarten, first, or even second-grade students!Rekenreks, also called math racks, number racks, or arithmetic racks are a great tool to encourage students to develop more sophisticated counting strategies beyond counting objects one by one. A rekenrek, or bead rack, has two rods,