lesson. Any combination of the questions below may be used to lead the discussion. What makes Problems 1(e) and (f) more challenging? In Problem 1(e), does 10 more mean we should add 10 to 319? Why not? In Problem 1(f), why did you add 100 to 499 when it says 100 less? What do you need to know to complete each pattern in Problem 2? In Problem 3(b), what total quantity did you subtract from 187? How can you write it as an equation? In Problem 4(b), what total quantity did you add to 323 to arrive at 400? How did you show the missing addend using the arrow way? How can we show it as an equation? Which simplifying strategy did we use today to record a sequence of numbers? How is it helpful? What important connection did we make today? What are we actually doing when we talk about 10 more, 10 less, 100 more, or 100 less than a number? Exit Ticket (3 minutes) After the Student Debrief, instruct students to complete the Exit Ticket. A review of their work will help with assessing students’ understanding of the concepts that were presented in today’s lesson and planning more effectively for future lessons. The questions may be read aloud to the students.
lesson. Any combination of the questions below may be used to lead the discussion. What makes Problems 1(e) and (f) more challenging? In Problem 1(e), does 10 more mean we should add 10 to 319? Why not? In Problem 1(f), why did you add 100 to 499 when it says 100 less? What do you need to know to complete each pattern in Problem 2? In Problem 3(b), what total quantity did you subtract from 187? How can you write it as an equation? In Problem 4(b), what total quantity did you add to 323 to arrive at 400? How did you show the missing addend using the arrow way? How can we show it as an equation? Which simplifying strategy did we use today to record a sequence of numbers? How is it helpful? What important connection did we make today? What are we actually doing when we talk about 10 more, 10 less, 100 more, or 100 less than a number? Exit Ticket (3 minutes) After the Student Debrief, instruct students to complete the Exit Ticket. A review of their work will help with assessing students’ understanding of the concepts that were presented in today’s lesson and planning more effectively for future lessons. The questions may be read aloud to the students.