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Video 3: "Algebra I"
I. Before you watch the video answer the following questions. The title of the video is "Algebra I" What do you think this video will be about? I think to try on different ways of solving an algebraic equation Mention five words you think you might listen to in the video. Algebra Equation Steps Number Mathematics II. Now click on the following link and watch the video. While watching, please answer the following questions: [] Image taken from: [] on August 12th. 2009

1 . Mr. Mc Call is solving three types of equations in this video. Which are those types of equations? The first type of equation that was presented: the equations with a variable in one of the two sides, the second type of equation was equations with variables on both sides of the equality, and the last one was equations with multiple variables for the variables. 2. What are the two keys he mentions for solving any equation? The two keys are: add into the equation the additive inverse of the number in the equation or multiply by the reciprocal of the number. 3. a. Mention the steps he takes to solve the 1st problem. He added the additive inverse of 2 on both sides of the equation. then he multiplied by the reciprocal of -1 / 5 on both sides of the equation, and finally he solved to the equation. b. What kind of equation is this one? That type of equation was: equations with a variable in one of the two sides. 4. a. Mention the steps he takes to solve the 2nd problem. He used the distributive property in 4 (X-5), then he added the additive inverse of 4x on both sides, after that, he added the additive inverse of 2 in both sides of the equation. Finally he multiplied the reciprocal of 5 on both sides of the equation, and thus the equation was resolved. b. What kind of equation is this one? That type of equation was: equations with variables on both sides of the equality. 5. a. Mention the steps he takes to solve the 3rd problem. he takes W as the variable, the first thing it does is add the additive inverse of 2L on both sides of the equation, then divide both sides of equation by 2, and finally he cleared the equation for W. b. What kind of equation is this one? That type of equation was: equations with multiple variables for the variables. 6. a. Mention the steps he takes to solve the 4th problem. First he multiplied by the reciprocal of D on both sides of the equation, then he added on both sides of the equation the additive inverse of C and thus the equation was resolved. b. What kind of equation is this one? That type of equation was: equations with multiple variables for the variables. c. What’s the difference between problem 3 and problem 4? Problem 3 and 4, although they are the same type of equation, there is a difference, is that in problem 4 there is a division on one side of the equation, and the division is by a variable, while in problem 3 there is a linear equation. 7. Did you like the video? I liked it, it was easy to understand and it was fun to see again what I learned in __primary__ **//School //** 8. What new things did you learn? Actually I didn't learn nothing, because I knew all the steps that he did


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