Its Expression Time Making Algebraic and Verbal Expressions

It’s Expression Time!! Making Algebraic and Verbal Expressions EASIER to Understand

#1 - Recognizing Verbal Expressions Which of the following represents a verbal expression? Four less than twice a number B. 2 x – 4 A. § § Write the correct letter on line #1 Now, go to the next slide to see if you are correct

Answer to #1 § A. is the correct choice: Four less than twice the number § Notice how in the verbal expression above, there are no numbers or symbols being used Only words are being used Go to the next slide § §

#2 - Recognizing Algebraic Expressions Which of the following represents an algebraic expression? Four less than twice the number B. 2 x – 4 A. § § Write the correct letter on line #2 Now, go to the next slide to see if you are correct

Answer to #2 § B. is the correct choice: 2 x – 4 Notice how in the algebraic expression above, there are no words being used § Only numbers, variables, and symbols are being used § Go to the next slide §

#3 Joan is 3 times the age of her sister. Which word in the sentence above represents a math operation? § Write your answer down on line #3 § Now, go to the next slide to see if you are correct §

Answer to #3 § § § The word times represents a math operation. Joan is 3 times the age of her sister. Which operation does times represent? Write your answer down on line #4 Now, go to the next slide to see if you are correct.

Answer to #4 Times represents multiplication § Go to the next slide §

#5 Joan is 3 times the age of her sister. Her sister is k years old. What do we call the k in the sentence above? § Write your answer down on line #5 § § Now, go to the next slide to see if you are correct.

Answer to #5 We call the k a variable § Go to the next slide §

#6 Joan is 3 times the age of her sister. Her sister is k years old. Translate the information above into an algebraic expression. Write your translation on line #6. § Now, go to the next slide to see if you are correct. §

Answer to #6 3 * k years or 3 k years Notice that 3 x k cannot be a correct answer § Go to the next slide to find out why §

You don’t want to use the x symbol for multiplying when you are dealing with variables § Otherwise, it can be very confusing § Go to the next slide §

#7 What are some words or phrases that can be used to represent addition in verbal expressions? Write as many as you can think of on line #7 § Now, go to the next slide to see the ones Miss Becker came up with §

Answer to #7 Addition words and phrases: more than, sum, add, increased by, plus, added to, total #8 - What are some words or phrases that can be used to represent subtraction in verbal expressions? Write as many as you can think of on line #8 § Now, go to the next slide to see the ones Miss Becker came up with §

Answer to #8 Subtraction words and phrases: less than, minus, taken from, difference, decreased by #9 - What are some words or phrases that can be used to represent multiplication in verbal expressions? Write as many as you can think of on line #9 § Now, go to the next slide to see the ones Miss Becker came up with §

Answer to #9 Multiplication words and phrases: times, the product, multiplied, of, twice #10 - What are some words or phrases that can be used to represent division in verbal expressions? Write as many as you can think of on line #10 § Now, go to the next slide to see the ones Miss Becker came up with §

Answer to #10 Division words and phrases: quotient, divided by § Go to the next slide

Congratulations! You have just completed a crash course in algebraic and verbal expressions! § I hope they are easier to understand now! § Good bye! §