Solve Both Sides Day 1 Teacher Notes 5-3 Variables on Both Sides powerpoint Solve Both Sides Day 1 Teacher Notes Supplies Each student needs a bag of algebra tiles. Each student needs a bag of algebra tiles. Students will work individually and in partners. Revised 8/11/11

5-3 Variables on Both Sides powerpoint Learning Target Target 3b I can show the algebraic steps I used to find a solution to a multi-step equation. Make up an equation with variables on both sides of the equation. M1.3.A Solve linear equations in one variable.

Get a piece of blank paper 5-3 Variables on Both Sides powerpoint Get a piece of blank paper Fold it in half hamburger style. Use the fold to divide the 2 sides of the equation. This represents the two sides of the equation.

5-3 Variables on Both Sides powerpoint Launch Use algebra tiles to solve 2x – 3 = 5 Review of last lesson.

Use Algebra Tiles to Solve 2-7 Solving Equations With Algebra Tiles powerpoint Use Algebra Tiles to Solve Linda asks Heather and Cindy how many books they read over summer. Cindy read 4 times as many books as Linda read. Heather read 4 more than three times as many books as Linda read. How many books did Cindy read? What are you asked to find? Define x: Write an equation to solve the problem. x = number of books I read x + 2 = 5

Make the equation with tiles 3x + 4 = 4x 5-3 Variables on Both Sides powerpoint Make the equation with tiles 3x + 4 = 4x I mean it! You try it. Pass out the algebra tiles. Is your picture equivalent to this one?

Make this equation with tiles 3x + 4 = 4x 5-3 Variables on Both Sides powerpoint Make this equation with tiles 3x + 4 = 4x As a class, discuss the steps. How can you start?

5-3 Variables on Both Sides powerpoint Solve: 3x + 4 = 4x = 4 = x

5-3 Variables on Both Sides powerpoint ✔ Check it: 4 = x 3x + 4 = 4x Have them try to check it. Simplify the left side. Then simplify the right side. Are they equal? 16 = 16 You try it. ✔ :-)

Use Algebra Tiles to Solve 2-7 Solving Equations With Algebra Tiles powerpoint Use Algebra Tiles to Solve Linda asks Heather and Cindy how many books they read over summer. Cindy read 4 times as many books as Linda read. Heather read 4 more than three times as many books as Linda read. How many books did Cindy read? Now that you know what x is, what were you asked to find? x = number of books I read x + 2 = 5

Solve this one with your partner! Solve: 2x + 4 = 5x + (-5) Solve this one with your partner!

Solve: 2x + 4 = 5x + (-5) Let’s remove the same things from both sides.

Solve: 2x + 4 = 5x + (-5) How can we remove the red ones?

Solve: 2x + 4 = 5x + (-5)

Solve: 2x + 4 = 5x + (-5)

Solve: 2x + 4 = 5x + (-5)

Solve: 2x + 4 = 5x + (-5)

Solve: 2x + 4 = 5x + (-5)

Solve: 2x + 4 = 5x + (-5) x = 3

5-3 Variables on Both Sides powerpoint ✔ Check it: x = 3 2x + 4 = 5x + (-5) 10 = 10 You try it. ✔ :-)

Team Practice Solve 3x + 1 = 4x – 3 2(x – 4) = 6 Check your answers. Be prepared to share your work. 3x + 1 = 4x – 3 2(x – 4) = 6 -4 = x x – 4 = 3 x = 7

5-3 Variables on Both Sides powerpoint Debrief Explain How do you solve equations with variables on both sides?

5-3 Variables on Both Sides powerpoint 2-7 Solving Equations With Algebra Tiles powerpoint Learning Target 5 3 1 2 4 Did you hit the target? Target 3b I can show the algebraic steps I used to find a solution to a multi-step equation Copy the Standard and Target here Rate your understanding of the target from 1 to 5. 5 is a bullseye!

5-3 Variables on Both Sides powerpoint Practice Practice 2.6 ___

5-3 Variables on Both Sides powerpoint Ticket Out If you were told to solve, what would you do next?