When you are assigned to teach one grade level, it can be helpful to know what was taught in the grade levels before and what will be taught in the grade levels after yours so that you can be more effective in helping to make your students' mathematics learning cohesive and coherent. Scenario: You are assigned to teach seventh-grade mathematics. Choose a seventh-grade mathematics standard and review all of the K-12 related standards. What might students already know? What might you help them understand before moving on to eighth grade and beyond