Steps to Solving EquationsProjector Resources Steps to Solving Equations Projector Resources.

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Presentation transcript:

Steps to Solving EquationsProjector Resources Steps to Solving Equations Projector Resources

Steps to Solving EquationsProjector Resources Things to Ponder If you substitute your value of x on one side of the equation, does it equal the number on the other side? How can you check whether your value for x is correct? Could you solve the equation using a different method? P-1

Steps to Solving EquationsProjector Resources Writing Algebraic Expressions P-2 Area of rectangle = _ _ _ _ _ _ _ _ _ _ _ _

Steps to Solving EquationsProjector Resources Writing Algebraic Expressions P-3 Perimeter of rectangle = _ _ _ _ _ _ _ _ _ _ _ _

Steps to Solving EquationsProjector Resources Writing Algebraic Expressions P-4 Which two expressions are equivalent?

Steps to Solving EquationsProjector Resources Which Equations Describe The Story? P-5 A pencil costs $2 less than a notebook. A pen costs 3 times as much as a pencil. The pen costs $9 Which of the four equations describe this story? Let x represent the cost of notebook.

Steps to Solving EquationsProjector Resources If x is the cost of a notebook, what expression shows the cost of a pencil? If a pen costs 3 times as much as a pencil, what expression shows the cost of a pen? What errors do you see in B and C? Find the cost of a notebook. Check the solution. P-6

Steps to Solving EquationsProjector Resources P-7

Steps to Solving EquationsProjector Resources Individual Work Write an equation of each of the stories on your cards. In each case, let x represent the number you are trying to find. P-8

Steps to Solving EquationsProjector Resources P-9

Steps to Solving EquationsProjector Resources Collaborative Work The six story cards are the same stories you were just looking at. With your group, match each story card with an equation card. Use your individual work to help you. Do any of your equations match the equations on the cards? Justify each choice with a thorough explanation. Check all work carefully! P-10

Steps to Solving EquationsProjector Resources P-11

Steps to Solving EquationsProjector Resources Collaborative Work Part 2 Divide your paper into quarters. You are now going to work with card E1, E2, E3, and E4. Place one card, along with its matching story, at the top of each section. Explore the steps for solving each equation. In between each step, write a direction of the process involved. (ex: divide both side by 2) Repeat this until to reach a solution. If you find that there is more than one method for solving an equation, show both methods side-by- side. Be sure to explain all aspects of your work thouroghly.