Writing an Expression from a Word Problem

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Taught by mrbrianmclogan
  • Currently 3.0/5 Stars.
1495 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, you will learn how to write an expression from a word problem. Using a used book store as an example, the teacher explains how to identify variables and what they represent, as well as how to determine the constant cost of each item. By adding the expressions for the cost of buying hardcover books and paperback books, you can calculate the total cost of buying any combination of books.

Lesson Description:

How to write an expression from a word problem

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Questions answered by this video:
  • How do you write an Algebraic expression from a word problem?
  • If a used book store sells hardcover books for $2.50 and paperback books for $0.50, how do you write an expression for the cost of buying h hardcover books and p paperback books?
  • How can you make a table for how much it costs to buy 1, 2, and 3 hardcover books at $2.50 each and 1, 2, and 3 paperback books at $0.50 each?
  • Staff Review

    • Currently 3.0/5 Stars.
    This lesson goes through an example problem asking you to take a paragraph-long word problem and write an Algebraic expression to model what the words say. In this problem, you are asked to write an expression for the total cost of buying a certain number of hardcover books and paperback books. Unfortunately, the screen is split in half and reflected on each side, so it is a little difficult to see the board.