Learning goals: Teacher Facing Compare and contrast (orally and using other representations) division problems with whole-number and decimal divisors. Divide whole numbers or decimals by decimals, and explain the reasoning (orally and using other representations), including choosing to divide a different expression that gets the same quotient. Generate another division expression that has the same value as a given expression, and justify (orally) that they are equal. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 6.5 Arithmetic in Base Ten, Grade 6.