do now with the use of a calculator · 2016-10-25 · notes,whiteboard,whiteboard page,notebook...
TRANSCRIPT
03_12_13_14_Multiplying_Dividing_Signed_Numbers.notebook
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October 25, 2016
Topic: Rational Numbers and OperationsAim: Where do the rules for multiplying and dividing signed numbers come from?
Do Now: Pattern Finders! Complete the table below, WITH THE USE OF A CALCULATOR:
15 10 5 -50 -10 -15
-15 -10 -5 50 10 15Reason Inductively: Can you find any patterns in the tables? If so, describe them.
• When is the product of two integers a positive number?• When is the product a negative number?• Why would the rules for dividing be the same as the rules for multiplication?
HomeworkComplete Handout
Date:
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October 25, 2016
Practice Makes Us Perfect!Directions: Copy this table in your notebooks.
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October 25, 2016
When Multiplying and Dividing Signed Numbers:
Rules for MULTIPLYING & DIVIDING Signed Numbers
Multiply or divide 2 digits at a time
SAME SIGNS POSITIVE
DIFFERENT SIGNS NEGATIVE
What should we write for the rules of multiplying and dividing?
click box to reveal
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October 25, 2016
Let's Review What We Have Learned!
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October 25, 2016
Multiplying Integers In the Real World
Once a parachute is opened, a skydiver descends at a rate of about 5 meters per
second. (a) Where will the skydiver be in relation to where the parachute was opened after 4
seconds?(b) Write a multiplication sentence to represent
the skydiver's position after 5 seconds.
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October 25, 2016
Dividing Integers In the Real WorldEeeew.. Did you know you lose about 1,800,000 dead skin cells every hour? How many skin cells do you lose every minute? Express your answer as an integer.
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October 25, 2016
Are You Ready for a CHALLENGE !?!?
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October 25, 2016
What do we do with exponents?
Expand it out! Expand it out!
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Evaluating Exponents
BE CAREFUL WITH NEGATIVE NUMBERS!!!What an exponent is touching is expanded out!
32 (3)2
3 3 (3)(3)
exponent is only touching the 3drop negativewrite 3 two times
exponent is touching parenthesiswrite everything in parenthesis two times
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Practice Problems
#1) #2)
#3) #4)
#5)
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HOMEWORK
Complete Handout
SUMMARY
How do we know if our answer will be positive or negative when we are
multiplying or dividing signed numbers?
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October 25, 2016
Interactive Activity #1
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LESSON: 0313
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Interactive Activity #2
Are you a NINJA?
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Practice Problems
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Practice Problems
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Practice Problems
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Practice Problems
(2)(3)(4) = 24
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Practice Problems
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Practice Problems
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Practice Problems
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Topic: Rational Numbers and OperationsAim: How can we practice our conversionsby applying our knowledge of theoperations with signed numbers?
15 10 5 -50 -10 -15
-15 -10 -5 50 10 15
Reason inductively: Can you find any patterns in the tables? If so, describe them.
Date: 12‐1‐14
Do Now: Simplify.
1. (‐7)2 2. ‐72 3. (‐5)(‐4)(2)(‐3)
Homework1. Complete Handout2. STUDY for Quiz on
Multiplying and Dividing Signed Numbers on MONDAY!!!
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Let's Review What We Have Learned!
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Practice Problems
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Practice Problems
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Practice Problems
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Practice Problems
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Practice Problems
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Practice Problems
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Practice Problems
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Practice Problems
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Practice Problems
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Practice Problems
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