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Lesson 1.1 Variables and Expressions Objectives: SWBAT 1) Write verbal expressions from algebraic expressions. 2) Write algebraic expressions from verbal expressions. Bell Work/Algebra Builder Grading Time 2 Minutes 2 click here to start timer 1 0 Bell Work Grading • 5pts. – the learner knows all of the simple knowledge and skills, all of the complex knowledge and skills, and goes beyond what was taught is class to apply the knowledge. • 4pts. – the learner knows all the simple knowledge and skills, and all the complex knowledge and skills. • 3pts. – the learner knows all of the simple knowledge and skills. • 2pts. – with help, the learner knows some of the simple knowledge and skills. • 1pt. – even with help, the learner does not know any of the simple or complex knowledge and skills. Fact or Fib Showdown Pre-Algebra Review Fact or Fib C.H.A.M.P.S Conversation Level – 1 Help – Talk amongst your group. If you can’t agree, call over teacher by having one person raise their hand Activity – deciding individual if a statement is fact or fib. Discussing an example that makes it true or example your side if you disagree Movement – No movement Participation – Talk quietly and respectfully with other students in your group. Listen when another person talks. Success – Remember majority of review Fact or Fib? All functions are relations. Fact or Fib? All relations are functions. Fact or Fib? The domain of a function represents the set of all dependent values. Fact or Fib? The range of a function represents the set of all outputs. Fact or Fib? This is the graph of a function: Fact or Fib? The following is an example of the Associative Property. a+(b+c)=(a+b)+c Fact or Fib? The following is an example of an equation: 3x+5x Fact or Fib? A variable represents a value that is known. Fact or Fib? The ordered pair (0,3) represents a value on the y-axis. Fact or Fib? The line of symmetry is a line which splits the image into two mirror images. Fact or Fib? Given 7(3x-5)=21x-5, then x can be any number. Fact or Fib? The mapping below represents a function Fact or Fib? Given 12(k-8)=84, then k=15 Fact or Fib? Given the set {(1,2), (3,4), (5,6), (7,8)}, the range is {1,3,5,7}. Key Word Grouping C.H.A.M.P.S Conversation Level – 1 Help – One person in group raise hand after you have made sure no one knows in group Activity – Grouping of Key Words Movement – Standing or leaning in chairs Participation – Talk quietly and respectfully with other students in your group. Listen when another person talks. Success – Group Keys Words into their respective group to the best of your ability 10 Minutes 10 click here to start timer 5 0 Equation Breakdown Equation Expression (Algebraic) Term Term 3𝑥 + 5 = 20 Coefficient Variable Constant exponent base 6 5 Power This is considered an exponential expression How to read a power: -5 to the sixth power -5 to the power of six -5 raised to the sixth power -5 raised to the sixth Converse Terms 7 more than the twice a number (older) 9 less than a number (younger) Me, We, Two, You Write an algebraic expression that would represent the verbal statement. 1) One third of a number increased by 7 2) 50 cents per snickers 3) Product of base and height cut in half 4) The quotient of a number cubed and 8 5) 19 less than double a number cubed 1 Minute 1 45 30 15 0 45 30 15 0 click here to start timer 1 Minute 1 click here to start timer Me, We, Two, You Write a verbal statement that would represent the algebraic expression. 1) 2𝑥 + 5 2) 𝑘 2 − 11 3) 4) 1 𝑚 2 3𝑥 2 2 1 Minute 1 45 30 15 0 45 30 15 0 click here to start timer 1 Minute 1 click here to start timer Key Words in a Word Problem It takes your brother 5 hours to paint his room and it takes you 𝑥 hours to paint your room. Write an expression to represent the average of the two of you painting your rooms. Perimeter The length of a certain rectangle is 7 inches longer than its width. Write an expression to represent the perimeter of this rectangle. Write an expression to represent the area of this rectangle. 1 Minute 1 45 30 15 0 click here to start timer 1 Minute 1 click here to start timer 45 30 15 0 Average The high score of Unit 1 Assessment is 18 points higher than the lowest score in the class. Write an expression to represent the average of the high and low scores of Unit 1 Assessment. Perimeter Flashcards – If time 5 Minutes 5 click here to start timer 0 Assignment Syllabus Signed 1.1 WS bundle Unit 1 Vocabulary Foldable