## Reflection: Developing a Conceptual Understanding "Kickin' Back" Retired Style - Section 2: Introduction to BINGO Add 1 or Subtract 1

This part of the today's lesson offered an opportunity for a discussion of the idea of adding one and subtracting one from a number.  I have attached four videos that demonstrate three different things. The first two are examples of students not only understanding the idea of +1 but also the ability to articulate it their peers.  The third video represents a student who is unclear of what it means to add 1 to a number and doesn't offer a rationale explanation. I have included this, because it alerted me during the introduction, that I need to touch base with her before she starts the game (I went to her group first during center time).  The fourth video is of a student explaining what it means to subtract 1 from a number.  Although he is less than enthusiastic to share, I realized that he understood it and pushed him to share his thinking.

It is important that, in your introduction of this game, the students have a general understanding of adding and subtracting 1 from a number.  I related it to the past few days of using the number line for the Start At, Stop At activity.

Developing a Conceptual Understanding: Reflection on Introduction to Add 1 or Subtract 1 Bingo

# "Kickin' Back" Retired Style

Unit 3: Counting & Comparing
Lesson 4 of 7

## Objective: The students will be able to fluently of add or subtract 1 using single digit numbers.

### Thomas Young

203 Lessons14 new

## Big Idea: What better way to take it easy then to play America's favorite retiree game BINGO! The students will work with the idea of adding one and subtracting one from numbers 1-10.

Print Lesson
3 teachers like this lesson
Standards:
Subject(s):
Number Sense and Operations, Math, Comparing Numbers, addition, subtraction, 1st Grade Math
70 minutes

### Thomas Young

203 Lessons | 14 new

##### Similar Lessons

Big Idea: Movin’ on up! Counting on is a strategy that can help foster mental math skills.
Favorites(10)
Resources(12)
Lakeland, FL
Environment: Urban

###### Act it out!
1st Grade Math » Creating a Culture of Math
Big Idea: Students solve problems and begin to explore the "counting on" strategy!
Favorites(4)
Resources(15)
New Orleans, LA
Environment: Urban

###### Life-size Missing Parts of 9
1st Grade Math » Understanding Subtraction
Big Idea: I want them to develop fluency in subtraction and get them ready for future standards like 1.NBT.C.6, double digit subtraction. This can be done by providing them multiple opportunities to problem solve.
Favorites(0)
Resources(15)
Oklahoma City, OK
Environment: Urban