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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? Maybe about the rules that are taught in high school for solving equations, or maybe about mathematical operations and their properties. Mention five words you think you might listen to in the video. Equation, variable, constant, addition and multiplication.

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? · Equations with a variable on one side with a fraction · Equations with a variable on both sides · Equations with multiple variables 2. What are the two keys he mentions for solving any equation? He said that for any two step equation the reciprocal and the additive inverse are keys.

3. a. Mention the steps he takes to solve the 1st problem. He adds 2 to both sides of the equation and then he multiplies -1/5 to both sides of the equation b. What kind of equation is this one?

An equation with a variable on one side with a fraction

4. a. Mention the steps he takes to solve the 2nd problem. He uses the distributive property on 4(x-5) on the right side and adds 6x to 3x on the left side. Then he adds -4x and 2 to both sides and multiplies 1/5 to both sides. b. What kind of equation is this one? An equation with variables on both sides

5. a. Mention the steps he takes to solve the 3rd problem. He adds -2l to both sides and divides both sides by 2. b. What kind of equation is this one? An equation with multiple variables

6. a. Mention the steps he takes to solve the 4th problem. He multiplies both sides by d and he adds -c to both sides. b. What kind of equation is this one? An equation with multiple variables c. What’s the difference between problem 3 and problem 4? Problem 4 has a fraction on the right side.

7. Did you like the video? Yes.. In particular I liked that he talked about the additive inverse and the reciprocal, because this is a better way to explain how to solve equations that the way it was taught to me in school.

8. What new things did you learn? Nothing, because I already knew how to solve these kind of equations.