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Due on Tuesday – post to discussion thread What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain your answer. Can you solve for a variable in an equation? Explain your answer. Write a mathematical phrase or sentence for your classmates to translate. Translate your classmates’ phrases or sentences and explain what clues indicate that the problems are either expressions or equations. Respond to classmates who have responded to your sentence or phrase and indicate whether or not they correctly translated the problem. Ask clarifying questions if you need more explanation, or help students who seem to struggle with the concept. 1. What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain your answer. Can you solve for a variable in an equation? Explain your answer. Write a mathematical phrase or sentence for your classmates to translate. Translate your classmates’ phrases or sentences and explain what clues indicate that the problems are either expressions or equations. An equation is a mathematical thing in which there are 2 “sides” that are set equal to each other. On the other hand, an expression is just one side and has just some mathematical phrases in it. Equation: 2x + 3 = 7 Expression: 7x - 2x + 2 You can solve for a variable in an equation because since there is equality, you can use mathematical operations to position that equality in such a way that the variable is on one side. Example: 2 more than 2 times of a number all together divided by 3

Week 1 DQ 1 _3 Different Responses

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Page 1: Week 1 DQ 1 _3 Different Responses

Due on Tuesday – post to discussion thread

 What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain your answer. Can you solve for a variable in an equation? Explain your answer. Write a mathematical phrase or sentence for your classmates to translate. Translate your classmates’ phrases or sentences and explain what clues indicate that the problems are either expressions or equations.

Respond to classmates who have responded to your sentence or phrase and indicate whether or not they correctly translated the problem. Ask clarifying questions if you need more explanation, or help students who seem to struggle with the concept. 

 1.  

What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain your answer. Can you solve for a variable in an equation? Explain your answer. Write a mathematical phrase or sentence for your classmates to translate. Translate your classmates’ phrases or sentences and explain what clues indicate that the problems are either expressions or equations.

 

An equation is a mathematical thing in which there are 2 “sides” that are set equal to each other. On the other hand, an expression is just one side and has just some mathematical phrases in it. 

 

Equation:                          2x + 3 = 7

Expression:                       7x - 2x + 2

You can solve for a variable in an equation because since there is equality, you can use mathematical operations to position that equality in such a way that the variable is on one side. 

 

Example:       2 more than 2 times of a number all together divided by 3

Answer:                                                (2+ 2x)/3                                                                

2. The difference between and equation and an expression is that an equation is a complete sentence while and expression is a phrase that can be determined in different ways to solve. An equation has one solution because it includes an equal sign, for example 2 + x = 18. There is only one probable answer for this equation being 9. While an expression does not have an equal sign and can be interpreted differently, for example 6x + 3. Looking at this expression we can automatically see that any number can be plugged in to solve it meaning there are several options to solve the expression. Variables within an equation are solvable because you can use the “sentence” to solve for that variable, or in other words use what you have to solve for that variable. When using an expression to solve for a variable it’ll be a little more difficult to solve for a variable when there are missing components such as the equal sign.

Page 2: Week 1 DQ 1 _3 Different Responses

Mathematical phrase to Translate:  10x-62= 183. Equations are constructed from algebraic expressions.  (Chapter 1, p. 2). 

A math equation could be 1+2 = 3 An expression is 1 + y = 3 What would Y be? 

The Y is the variable.  Y is the amount of apples that you have that are edible right now. The variable can change so you cannot solve for a variable expression., since you don't know how long the apple will last. 

1+2 = 3 A an expression 1 + B = 25 If B is the constant, which stays the same let's say B = nuts they do not go bad. 

What would B = ??