Variables and expressions
- 1. Wednesday, September 7thPlease write down homework and Complete warm-up
- 2. Did you turn in your warm up yesterday?Warm UPFind the pattern in each sequence and find the next 3 terms 1. 32, 36, 40,……… 2. 112, 109, 106…..
- 3. Joke of the DayWhy do birds fly south in the winter? Because it's too far to walk!
- 4. Grades Midterms go home Friday
- 5. Remember that homework is graded out of 100
- 6. Late work is accepted up until the test
- 7. IT IS YOUR RESPONSIBILITY TO TURN IN LATE WORK!Front bin=late workTest #2 Great Job!!!!!
- 8. Test Answers4 points each12.178, 12.71, 12.781,12.8714.19, 4.09,3.90, 3.19,3.09SHOWED WORK: 8SHOWED WORK: 60, 66CSHOWED WORK: 29b4.61ba
- 9. Test AnswersB AA C 29.448.124.386011.28.0112.8.875 pounds9.4 miles3355256
- 11. Algebra
- 12. Vocab Review/Content Map Place in front of table of contents Vocab sheet-fill out 1 & 2 in your groups Make sure to give an example
- 14. On your whiteboards…..Write down as much as your can about Algebra
- 15. Web/phone lingoHow would you write the following words shorthand?Laugh out loudBest friendTalk to you laterJust kidding Can you think of anything else?
- 16. This Is a part of algebra!!!It’s a shorthand way of writing things
- 18. Table of Contents Date: 9/7Section: 2-1 Title: Variables and ExpressionsPage-2-3
- 19. a. VariableVariable – A variable is a letter or symbol that represents a number (unknown quantity).8 + n = 12
- 20. A variable can use any letter of the alphabet.n + 5x – 7w - 25Lesson 1 - Attachment A
- 21. b. ConstantConstant-a quantity that does not change. The number8 + n = 12
- 22. Algebraic expression – a group of numbers, symbols, and variables that express an operation or a series of operations.m + 8r – 3 - 6rLesson 1 - Attachment Ac. Algebraic expression
- 23. Review VocabularyNumerical Expression-An expression that only contains numbers and operations5-6÷3
- 24. Which expression are ALGEBRAIC expressions5x-43x-5y5+t-tR-107-4(5-2)+35-2+4a+b+c
- 25. Input and output machineX=510X+5
- 26. 2. Evaluating Algebraic expressions-TABLEa.Input given values into where x is in the expression!xx+2
- 27. b. Complete This Table
- 28. c. Complete This TableLesson 1 - Attachment A
- 29. d. Complete This TableLesson 1 - Attachment A
- 30. 3. Evaluate algebraic expressions-expression4h-6h=3Substitute given value in where variable isRemember-once you substitute number in, the variable isn’t there anymore!
- 31. You Try!!!Evaluate when c=9C – 3 c + 6.7 9c+10Helpful HintsMultiplication can be written like:X • 3 3xX(3)Division can be written like:x÷3
- 32. WorktimeTextbook page 571-6And 11-22