Swap out traditional warmup practices and captivate your elementary students with these new, innovative and ready-to-go routines. Each quick and lively activity spurs mathematics discussion and provides a structure for talking about numbers, number concepts, and number sense. Designed to jump-start mathematics reasoning in any elementary classroom, the routines are: rich with content-specific examples and extensions, modifiable to work with math content at any K-5 grade level, compatible with any textbook or core mathematics curriculum, practical easy to implement, and flexible for use as a warmup or other activity.