Solving Subtraction Stories with Number Lines!
Lesson Description
Video Resource
Subtraction Word Problems for Kids - Grade 2 | Kids Academy
Kids Academy
Key Concepts
- Subtraction as taking away
- Using number lines to visualize subtraction
- Solving word problems by identifying key information
Learning Objectives
- Students will be able to solve subtraction word problems.
- Students will be able to use a number line to represent and solve subtraction problems.
Educator Instructions
- Introduction (5 mins)
Begin by asking students if they have ever shared something with a friend or used something up, like cookies. Explain that subtraction helps us figure out how much we have left. - Video Viewing (7 mins)
Play the 'Subtraction Word Problems for Kids - Grade 2 | Kids Academy' video. Encourage students to watch carefully how the teacher uses the number line to solve the cherry problem. - Guided Practice (10 mins)
Work through a similar subtraction word problem together on the board. For example: 'Tom has 35 toy cars. He gives 8 to his little brother. How many toy cars does Tom have left?' Model how to represent this problem on a number line. - Independent Practice (10 mins)
Provide students with a worksheet containing similar subtraction word problems. Have them solve the problems using number lines. Circulate to provide support as needed. - Wrap-up (3 mins)
Review the key concepts and solutions to the independent practice problems. Emphasize the importance of reading the word problem carefully and using the number line as a tool.
Interactive Exercises
- Number Line Hop
Draw a large number line on the floor with tape. Call out subtraction problems and have students physically 'hop' along the number line to find the answer.
Discussion Questions
- What does it mean to subtract?
- How can a number line help us solve subtraction problems?
- What are some keywords in a word problem that tell us to subtract?
Skills Developed
- Problem-solving
- Critical thinking
- Visual representation
Multiple Choice Questions
Question 1:
What does it mean to subtract?
Correct Answer: To take away
Question 2:
If you have 20 cookies and you eat 5, how many cookies do you have left?
Correct Answer: 15
Question 3:
Which of these shows taking away?
Correct Answer: -
Question 4:
What can we use to help us with subtraction?
Correct Answer: A number line
Question 5:
Lisa has 12 balloons. She gives 4 to her friend. How many does Lisa have left?
Correct Answer: 8
Question 6:
Which word tells you to subtract?
Correct Answer: Less
Question 7:
If you start at 10 on a number line and go back 3, where do you end up?
Correct Answer: 7
Question 8:
Ben has 15 stickers. He uses 6 stickers. How many stickers are left?
Correct Answer: 9
Question 9:
What is 25 - 10?
Correct Answer: 15
Question 10:
Which number line starts at the biggest number to subtract?
Correct Answer: Goes right to left
Fill in the Blank Questions
Question 1:
To subtract means to ________ away.
Correct Answer: take
Question 2:
A ________ line can help us solve subtraction problems.
Correct Answer: number
Question 3:
If you have 8 toys and you give 2 away, you have ________ toys left.
Correct Answer: 6
Question 4:
The sign for subtraction looks like a short ________.
Correct Answer: dash
Question 5:
When you subtract on a number line, you move to the ________.
Correct Answer: left
Question 6:
Subtracting is the opposite of ________.
Correct Answer: adding
Question 7:
If I have 10 balloons and 4 pop, I need to ________.
Correct Answer: subtract
Question 8:
When solving word problems, read the question ________.
Correct Answer: carefully
Question 9:
12 - 5 = _______.
Correct Answer: 7
Question 10:
If you start with a big number and __________ a smaller number, the answer will be smaller.
Correct Answer: subtract
Educational Standards
Teaching Materials
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