Lesson: Add Integers Using Chips/Counters
Lesson Objective
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:
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 “faceoff”. 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 
3,193

Notes 4 Number Line Counters 
1,058

Notes 4 Number Line Counters 
628

Exit Ticket Add Integers Counters 
1,197

HW Add Integers with Counters 
1,585

Comments
Ms. Ivory's lessons are enjoyable to read! They are effective and studentfriendly. Kudos to you!
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!