Kickstart your class with five daily 5-10 minute routines, all of which include content-specific examples, extensions, and variations for high school mathematics. This resource offers a year's worth of daily instructional material that you can use to begin each class period, and will help students: frequently revisit essential mathematical concepts; foster and shore up conceptual understanding; engage in mental mathematics, leading to efficiency and fluency; engage in mathematical discourse by constructing viable arguments and critiquing the reasoning of others; reason mathematically, and prepare for high stakes assessments; and move learning beyond "correctness" by valuing mistakes and discourse and encouraging a growth mindset.