Learning goals: Teacher Facing Interpret and critique explanations (in spoken and written language, as well as in other representations) of how to divide by a fraction. Use a tape diagram to represent dividing by a non-unit fraction $\frac{a}{b}$ and explain (orally) why this produces the same result as multiplying the number by $b$ and dividing by $a$. Use a tape diagram to represent dividing by a unit fraction $\frac{1}{b}$ and explain (orally and in writing) why this is the same as multiplying by $b$. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 6.4 Dividing Fractions, Grade 6.