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Algebra 1 Powerpoints Week 6
Nowak Algebra 1 Week 6
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Day 1: Number Tricks Nowak Algebra 1 Week 6
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#28 Do Now (Week 6, Day 1) Number Magic: “The Three Swap” Pick a number 1-25 Add 9 Triple it Subtract 6 Divide by 3 Subtract your original number What number do you have?
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Announcements HW 6 due Friday Unit 1 tests returned mid-week
I will be gone on Friday & Monday Quiz on what the sub covered when I return on Tuesday Treats for the class that gets the best sub report
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#28 Do Now (Week 6, Day 1) Number Magic: “The Three Swap” Pick a number 1-25 Add 9 Triple it Subtract 6 Divide by 3 Subtract your original number What number do you have?
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#28 Do Now (Week 6, Day 1) Number Magic: “The Three Swap” Pick a number 1-25 Add 9 Triple it Subtract 6 Divide by 3 Subtract your original number What number do you have? 3
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#28 Do Now (Week 6, Day 1) Number Magic: “The Corner Kick” Pick a number 1-25 Add 7 Multiply by 4 Subtract 16 Divide by 4 Subtract 3 What number do you have?
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#28 Do Now (Week 6, Day 1) Number Magic: “The Corner Kick” Pick a number 1-25 Add 7 Multiply by 4 Subtract 16 Divide by 4 Subtract 3 What number do you have? Your original number!
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Think / pair / Share Why do these work?
Will any set of random directions give you the result you want? What if we hadn’t started with a number 1-25? Would the tricks we did still work?
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Calculator Checkout Block C
Calculators are numbered on the back YOU are responsible for your assigned number for that class period All calculators must be returned back to the wall before class will be dismissed Tell me right away if you notice there’s a problem with your calculator
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Calculator Checkout Block D
Calculators are numbered on the back YOU are responsible for your assigned number for that class period All calculators must be returned back to the wall before class will be dismissed Tell me right away if you notice there’s a problem with your calculator
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Calculator Checkout Block e
Calculators are numbered on the back YOU are responsible for your assigned number for that class period All calculators must be returned back to the wall before class will be dismissed Tell me right away if you notice there’s a problem with your calculator
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#29 Number Tricks
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#29 Number Tricks
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#29 Number Tricks
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The number will always be 27.
7. Number Tricks! The Lefty No-Looker 1. Pick a number between 1 and 25. 2. Add 7. 3. Divide by 4. 4. Add 5. The number will always be 27. 5. Multiply by 4. 6. Subtract your original number.
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Classwork: Write the algebraic expression for each set of instructions
1. Pick a number. 2. Subtract 7. 3. Divide by 3. 1. Pick a number. 2. Multiply by 3. 3. Subtract 5. 1. Pick a number. 2. Subtract 3. 3. Multiply by 2. 1. Pick a number. 2. Multiply by -4. 3. Add 5. 1. Pick a number. 2. Divide by 5. 3. Add 4. 1. Pick a number. 2. Multiply by 6. 3. Subtract 5.
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6. Classwork: Write each of these as a set of verbal directions
1. 4. 2. 5. 3. 6.
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3. Impress A Friend
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7. Number Tricks! The Three Swap
1. Pick a number between 1 and 25. 2. Add 9 to it. 3. Multiply the result by 3. 4. Subtract 6. We’re gonna talk about number tricks today, which are like magic tricks only a lot cooler. ‘Cause they have math in them. The number will always be 7. 5. Divide by 3. 6. Subtract your original number.
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The number will always be your original.
7. Number Tricks! The Corner Kick 1. Pick a number between 1 and 25. 18 2. Add 7 to it. 25 3. Multiply the result by 4. 100 4. Subtract 16. 84 The number will always be your original. 5. Divide by 4. 21 6. Subtract 3. 18
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The number will always be your original number.
7. Number Tricks! The Corner Kick 1. Pick a number between 1 and 25. 2. Add 7 to it. 3. Multiply the result by 4. 4. Subtract 16. The number will always be your original number. 5. Divide by 4. 6. Subtract 3.
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7. Number Tricks! The Three Swap 1. Pick a number between 1 and 25.
2. Add 9 to it. 3. Multiply the result by 3. 4. Subtract 6. 5. Divide by 3. 6. Subtract your original number.
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The number will always be 0.
7. Number Tricks! 1. Pick a number between 1 and 25. 2. Multiply it by 9. 3. Subtract 18. 4. Divide by 9. The number will always be 0. 5. Subtract your original number. 6. Add 2.
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4. Writing These Mathematically
1. Pick a number. 2. Subtract 15. 3. The result is 12. 2. Divide by 4. 3. The result is -5. 2. Add 8.5 3. The result is 72. 2. Multiply by 4. 3. The result is -4. 1. Pick a number. 2. Multiply by 2/3. 3. The result is 14. 2. Add -7. 3. The result is 10. 2. Multiply by -3. 3. The result is 15. 2. Divide by -2. 3. The result is -7.5. 27 -20 63.5 -1 21 17 -5 15
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Subtract 20. Show them how to turn the instructions into an expression with variables.
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5. Break 6. Show and Tell
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Day 2: Number Tricks Cont’d
Nowak Algebra 1 Week 6
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#29 – Yesterday’s number tricks handout #30 Do Now (Week 6 Day 2)
Try this number trick!
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Write your own number trick – mini-Poster
Must have: Title 6 or more steps Algebraic expression for each step listed End result written out (“You should have…____!”) Color! Title (ex: “The Lefty No Looker”) Pick a number (or “start with your shoe size”, etc) _______________ You should have….______! X This is due in 30 minutes! While you are working, I will be calling groups of students up for check-ins
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Day 3: Describing a Graph
Nowak Algebra 1 Week 6
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#31 Do Now (Week 6 Day 3) 𝑥 3 = 15 5x – 12 = 38 Solve each equation:
What mistake was made? (3∙2)(3+2)2 (6)(5)2 (30)2
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Partner Pictionary Take turns – one person is the artist, one is the speaker Neither one can look at the other person’s paper (no cheating!) The speaker gives instructions for how to draw their graph The artist draws the graph the speaker describes (can ask ONE question)
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#32 Notes: Describing A Graph
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#32 Notes: Describing A Graph
X-intercept y-intercept increasing decreasing Relative maximum Relative minimum Symmetry
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Keep all cards in here Put your name on the envelope Will work with & tape these in next week
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Test Corrections MUST BE ON A SEPARATE SHEET OF PAPER
You will attach it to your test; more time to work on it in class tomorrow (we’ll keep them in our folders) 4 columns: Problem # My mistake was…. The correct work is… I now know….
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Test Corrections MUST BE ON A SEPARATE SHEET OF PAPER
You will attach it to your test; more time to work on it in class tomorrow (we’ll keep them in our folders) 4 columns: Problem # My mistake was…. The correct work is… I now know….
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Day 4: Graph Practice & Test Corrections
Nowak Algebra 1 Week 6
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#33 Do Now (Week 6 Day4) X-intercepts Y-intercepts
1. On the graph to the right, name the following: X-intercepts Y-intercepts Increasing & decreasing intervals Relative max’s and min’s Does it have symmetry? 2. Draw a graph with a maximum at x = -2 CHALLENGE: Draw a graph with a y-intercept at 3 and -1, an x-intercept at 2, and an increasing interval
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#33 Do Now (Week 6 Day4) X-intercepts (-25,0) (10,0)
max increasing 1. On the graph to the right, name the following: X-intercepts (-25,0) (10,0) Y-intercepts (0,10) Increasing & decreasing intervals Relative max’s and min’s Does it have symmetry? No 2. Draw a graph with a maximum at x = -2 CHALLENGE: Draw a graph with a y-intercept at 3 and -1, an x-intercept at 2, and an increasing interval deceasing increasing min
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#34 Ordered Pairs Review Please write the following in your notes: An ordered pair is a pair of numbers used to locate a point on the coordinate plane. The first number tells you where to go on the x-axis The second number tells you where to go on the y-axis
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#34 Ordered Pairs Review Please write the following in your notes: An ordered pair is a pair of numbers used to locate a point on the coordinate plane. The first number tells you where to go on the x-axis The second number tells you where to go on the y-axis A = (8,8) B = (-8,8) C = (-4,-2) D=(2,-4)
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#34 Ordered Pairs Review Please write the following in your notes: An ordered pair is a pair of numbers used to locate a point on the coordinate plane. The first number tells you where to go on the x-axis The second number tells you where to go on the y-axis A = (8,8) B = (-8,8) C = (-4,-2) D=(2,-4)
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#35 Graphitti Practice Seatwork
Practice plotting coordinate points to create a picture on the front (simpler) and back (more complex) *If absent, will need to pick this handout up in-class*
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Pairs: Describing Graphs Practice
Work with a partner to practice describing graphs using the vocab words from last week If you missed the notes, extra copies are at the student center Swap graphs with a nearby pair / raise your hand to get a new graph Each person is responsible for turning their own sheet in
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Test Corrections MUST BE ON A SEPARATE SHEET OF PAPER
You must attach it to your test 4 columns: Problem # My mistake was…. The correct work is… I now know….
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