 Read each statement about the topic “Combining
Opposites.”
 Write down who you agree with and why.
Alex – “Combining op...
 Equations and Expressions
 Variables
 Equality and the equal sign
 Balance
 Unit Plan
 Look at the first Learning Target
 Rank yourself – put a mark and the date underneath
 Students will learn...
 What do you know about a number line?
 1 volunteer to write on the board
 Use the number line above to define the word...
 Two numbers that are the same distance from
0 on a number line, but in opposite directions,
are opposites.
 Practice…
...
 This is a definition from Learnzillion.com.
 What is absolute value?
 Create a human number line.
 Absolute Value is ...
 What is their score?
 How can you represent this on a number line?
 How can you represent this mathematically?
 What is the expression (math sentence) to
solve this problems?
 5 + -5 or -5 + 5
 In either case, the answer is 0.
 W...
 You have discovered Additive Inverse
 The sum of a number and its additive inverse
is 0.
 In other words, when you add...
 These are also called Zero Pairs, because they
combine to equal 0.
 1 and -1
 -10 and 10
 -1000 and 1000
Opposites –
Zero pairs –
Additive Inverse -
 If you agree with someone new, write your
reasoning in your notebook.
 Money
 Football
 Can you…
 Describe situations in which opposite quantities
combine to make 0?
 Can you…
 Define opposites, zero pairs...
Additive inverse zero pairs absolute value
Additive inverse zero pairs absolute value
Upcoming SlideShare
Loading in …5
×

Additive inverse zero pairs absolute value

2,059 views

Published on

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
2,059
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
15
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • Key points: positive/negative, positive to right – negative to left, numbers get bigger to the right, smaller to the left, can be vertical or horizontal, part of a coordinate plane,
  • Football… gained 3 yards, then lost 3 yards.Money – earned $10, bought something for $10.Verticals – 32 inch vertical, then comes down 32 inches
  • Additive inverse zero pairs absolute value

    1. 1.  Read each statement about the topic “Combining Opposites.”  Write down who you agree with and why. Alex – “Combining opposites is just doubling the number.” Bryan – “Combining opposites would give you 0.” Carrie – “I don’t know how to combine opposites.”  You should start your sentence like this…  I agree with Alex/Bryan/Carrie because…
    2. 2.  Equations and Expressions  Variables  Equality and the equal sign  Balance
    3. 3.  Unit Plan  Look at the first Learning Target  Rank yourself – put a mark and the date underneath  Students will learn to…  Describe situations in which opposite quantities combine to make 0.  Describe the connection between opposites, zero pairs and additive inverse.  Define absolute value.
    4. 4.  What do you know about a number line?  1 volunteer to write on the board  Use the number line above to define the word opposite.  Opposite numbers are…  Share your definition with the group behind you.  Class definition?
    5. 5.  Two numbers that are the same distance from 0 on a number line, but in opposite directions, are opposites.  Practice…  Find the opposite of each number a. -8 b. 13 c. -22 a. 8 b. -13 c. 22
    6. 6.  This is a definition from Learnzillion.com.  What is absolute value?  Create a human number line.  Absolute Value is the distance from 0. Can’t be negative. ( How many hops to get to 0?)
    7. 7.  What is their score?  How can you represent this on a number line?  How can you represent this mathematically?
    8. 8.  What is the expression (math sentence) to solve this problems?  5 + -5 or -5 + 5  In either case, the answer is 0.  When you combine opposites, is it always equal to zero? (think about the scale, does it balance??
    9. 9.  You have discovered Additive Inverse  The sum of a number and its additive inverse is 0.  In other words, when you add a number and it’s opposite, you get 0. (Remember the Balance?)  Sort of like canceling each other out.
    10. 10.  These are also called Zero Pairs, because they combine to equal 0.  1 and -1  -10 and 10  -1000 and 1000
    11. 11. Opposites – Zero pairs – Additive Inverse -
    12. 12.  If you agree with someone new, write your reasoning in your notebook.
    13. 13.  Money  Football
    14. 14.  Can you…  Describe situations in which opposite quantities combine to make 0?  Can you…  Define opposites, zero pairs, and additive inverse and give examples of each?

    ×