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Warm up

Warm up. How long does a car traveling at 70 mph take to travel 88 miles, in hours? How many terms are in the expression: 36x + 27xy – 18y – 9? 5 word prediction. Guess the meanings of the following words: Variable, expression, base, constant, & factor. 1.257 hours. 4. Skills Check.

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Warm up

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  1. Warm up • How long does a car traveling at 70 mph take to travel 88 miles, in hours? • How many terms are in the expression: 36x + 27xy – 18y – 9? • 5 word prediction. Guess the meanings of the following words: Variable, expression, base, constant, & factor. 1.257 hours 4

  2. Skills Check No notes

  3. EQ CCCA Unit 1 • Why is it important to understand the “language” of mathematics?

  4. Definitions Identifying Parts

  5. Algebraic Expression • Can have variables, numbers, addition, subtraction, multiplication, division, parenthesis, square roots, exponents… • Examples:

  6. Variable • Symbols or letters used to represent an unknown • Examples: 

  7. Term • How many items are being added, subtracted, divided • Examples: 3 4

  8. Like Terms • Same variable raised to the same power • Examples:

  9. Coefficient • The number in front of a variable • Examples: 123 9 1

  10. Exponent • The number up in the air next to a base • The number of times you multiply something times itself • Examples: 3 12 4

  11. Base • What the exponent sits on • The part that has been raised to a power • Examples: 2 x y

  12. Constant • A number that has no variable • It can be positive or negative • Examples: -42 5 -8

  13. Factors • Items that are being multiplied together • Can be numbers, variables, parenthesis • Examples: 1 and 6…. Or 2 and 3 9 and x and y (x + 2) and (y – 3) 3 and (z – 9)

  14. Order of Operations • Simplify inside parenthesis • Take care of exponents • In order from left to right, multiplication or division • In order from left to right, addition or subtraction • Examples: -18

  15. Translations

  16. ADDITION • Sum • Plus • Add • More Than • Increased

  17. SUBTRACTION • Difference • Minus • Decreased • Less Than (swaps the order)

  18. DIVISION • Quotient • Half • Divide by

  19. MULTIPLICATION • Product • Twice • Double • Triple

  20. EXPONENTS • Square • Cubed • To the power of • Raised to a power

  21. Translate The sum of a number and 10 x + 10

  22. Translate The product of 9 and x squared 9x2

  23. Translate 9 less than g to the fourth power g2 – 9

  24. Translate 8 + 3x Eight increased by three times x

  25. Practice Worksheet Tapas and Tennis

  26. HOMEWORK WORKSHEET Writing an Expression Worksheet

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