Unit 22 · Division
Dividing Expressions
Mathematics · Grade 7
What You Will Be Able To Do
➗Divide one term by another, handling the powers correctly
0️⃣Say why a power of zero leaves 1 behind and not 0
📄Divide an expression of several terms by a single term
🚫Know what may be cancelled in a fraction, and what may not
“
Multiplying meant the coefficients multiply and the powers add, so dividing must undo both. The coefficients divide and the powers subtract.
Presenter notes: Open by asking the class to predict today lesson before it starts. Remind them that multiplying meant the coefficients multiply and the powers add, then ask what division ought to do. Somebody will say the coefficients divide and the powers subtract, and they will be exactly right. Tell them there is nothing new to learn today, only the same two rules used in reverse.