day 1 algebra concepts intro & 1.1...
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Day 1 Algebra Concepts Intro & 1.1 Notes
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September 08, 2016
Sep 68:19 PM
Ms. EngbrechtAlgebra Concepts
Aug 281:55 PM
About Me
Day 1 Algebra Concepts Intro & 1.1 Notes
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September 08, 2016
Sep 68:20 PM
BE HEREWORK HARDBE NICE
Sep 67:42 PM
Syllabus&
Hall Passes
Day 1 Algebra Concepts Intro & 1.1 Notes
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September 08, 2016
Sep 68:30 PM
No food or beverage (except water)
No electronics except your calculator
(No Phone, iPod, iPad, etc.)
Be on time (In your seat when bell rings)
Have a good attitude
Follow the rules set forth by the school
Sep 68:42 PM
GRADES50% tests
30% quizzes
20% assignments
Day 1 Algebra Concepts Intro & 1.1 Notes
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Sep 68:50 PM
Expect it daily
Typically due at the Beginning of next class
Sep 69:03 PM
Testing Procedure Review Day
Test Day
Outside of class Retake if you have all assignments done
Day 1 Algebra Concepts Intro & 1.1 Notes
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September 08, 2016
Sep 69:12 PM
Rules Continued... passes (only during work time)
end of the hour (stay in your seat)
sharpening pencils (do it before class or during work time)
be prepared (notes in binder, book, pencils, paper)
NO PHONE
Sep 68:45 PM
Every Day You Will NEED...• Pencils• Paper• Binder (your notes)• Textbook• Calculator• Planner
Day 1 Algebra Concepts Intro & 1.1 Notes
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September 08, 2016
Sep 610:03 PM
Any Questions?
Sep 69:51 PM
Student Survey
Day 1 Algebra Concepts Intro & 1.1 Notes
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September 08, 2016
Sep 69:17 PM
Textbooks*Will be dismissed by rows
*Make sure you sign out the book on the
*COVER YOUR BOOK
Bring In PAPER BAG if you need help
survey (top corner)
Sep 610:18 PM
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September 08, 2016
Sep 610:35 PM
Sep 89:41 AM
Do You Have Your...
• Pencil• Paper• Textbook• *Binder• *Calculator
If your syllabus is signed, turn the last page in to the 3rd hour basket as you come in.
Day 1 Algebra Concepts Intro & 1.1 Notes
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September 08, 2016
Sep 610:38 PM
Aug 1110:40 PM
1.1 Variables in AlgebraGoals: • Evaluate variable expressions
EQ: How do you evaluate an expression that has variables?
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Aug 1110:46 PM
VocabularyVariable:
Values:
Variable expression:
Numerical expression:
Evaluate:
Aug 1110:51 PM
Example 1: Describe the Variable ExpressionVariable Expression OperationMeaning
__ times __
__ divided by __
__ plus __
__ minus __
________
________
________
________
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Aug 1111:05 PM
Example 2: Evaluate the Variable ExpressionEvaluate the variable expression when x = 5.
Expression SimplifySubstitute
a. 5x
b.40x
Aug 1111:09 PM
Try It Evaluate the variable expression when x = 4.
1. 10x 2. 20x 3. 10 x 4. x + 8
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September 08, 2016
Aug 1111:12 PM
Example 3: Evaluate rt to Find DistanceFind the distance d traveled in 30 minutes by a remote control car going an average speed of 10 miles per hour. Use the formula: distance equals rate r multiplied by time t.**Formula: d = rt
Answer: The distance traveled by the remote control car was ____ miles.5
*Make sure Units match, otherwise convert
Aug 1111:18 PM
Try ItUsing a variable expression, find the distance traveled in 20 minutes by a remote control car moving at an average speed of 9 miles per hour.
5.
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Aug 1111:21 PM
Example 4: Find the PerimeterThe perimeter P of a triangle is equal to the sum of the lengths of its sides:
P = a + b + cFind the perimeter of the triangle in meters.
1. Write the formula
2. Substitute
3. Simplify
Aug 1111:25 PM
Try It6. Find the perimeter of a triangle with sides 7 centimeters,
12 centimeters, and 17 centimeters long.
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Sep 89:46 AM
SummaryHow do you evaluate an expression that has variables?
EQ:
Homework:p.6 #1832, 3442even