Lesson: Add Integers Using Chips/Counters

6779 Views
107 Downloads
11 Favorites

Lesson Objective

SWBAT add and model integer addition using counters.

Lesson Plan

Standard

6NSO.C9

Know integer subtraction is the inverse of integer addition; use the number line to model addition and subtraction of integers and add and subtract integers

 

Aim/Objective:

Key Points

SWBAT add integers using counters/chips

·         Positive counters are represented by a empty circle

·         Negative integers are represented by a colored circle

·         One positive and one negative equal zero (cancel out each other)

·         After canceling out numbers, whatever  is left is your answer.

Assessment:

1.      Chip used counters and a mat to keep track of his score in a word game.  He got 6 questions correct and 12 questions incorrect. 

 

What is Chip’s final score?

 

A.      –18

B.      –12

C.      –6

D.     12

 

 

2.      Draw a diagram to show 8 + (-5).   Then solve the problem.

 

3.       Draw a diagram to show -9 + 4.  Then solve the problem.

 

Lesson

Do Now:

 

 

1)      -5 + 8

 

 

 

2)      7 + (-3) 

3)      -8 + -7

 

Teaching Points/Direct Instruction:

·         Tell students that another way to model addition of integers is to use counters

·         Show students that the light colored (empty) circle/counter represents a positive  and a dark colored counter/circle represents a negative

·         Show students that when adding integers we can use the counters by just putting out what the problem says and then removing the parts that cancel each other out

·         Tell students that one positive and one negative together equal zero and in other words they cancel out each other

·         Once you have done all of your canceling then you can see what’s remaining. 

·         If positive colors are remaining you just name how many and there are, if negatives are remaining you just name how many their area and add a negative sign

·         Demonstrate -5 + 8 for students

·         Draw a model and show how to write a number sentence for it.  (-3 + 2 = -1)

Guided Practice:

·         Students work with two color counters to model and draw -4 + 4

·         -8 + -2

·         +1 + (-8)

 

Independent Practice:

·         Students work on worksheet to practice using counters and writing number sentences for models of addition with integers.

 

Closing:

·         Ask students to explain to one another how to use counters to model integer addition

·         Exit Ticket

·        

 

 

Accommodations

Small Group Practice with RF

 

skills time

Integer Addition Card game

·  Shuffle both decks.

·  Now it’s time to “face-off”. Player 1 should lay down the top 2 cards from his deck face up. Player 1 adds the 2 cards, paying attention to positive and negative signs. Player 2 should do the same with her 2 cards. Compare answers. The player with the highest answer keeps all 4 cards (place in a separate pile).

·  Continue playing until all integer cards are used. The player with the most cards wins!

Pull students to review Unit 1 Test mistakes. 

Lesson Resources

Notes Add Integers with Chips and Counters   Notes
2,723
Notes 4 Number Line Counters  
931
Notes 4 Number Line Counters  
570
Exit Ticket Add Integers Counters  
1,055
HW Add Integers with Counters  
1,365

Comments

lasheika gourdine Posted 2 years ago:
Ms. Ivory's lessons are enjoyable to read! They are effective and student-friendly. Kudos to you!
Jill Gandhi Posted 2 years ago:
Ms. Ivory's entire Integer Unit has saved my life! I love how the lessons are structured and how the conceptual lessons lead into the procedures. Keep it up!

Cancel

Close

Something went wrong. See details for more info
Nothing to upload
details
close