Objective
By the end of this lesson, the student will be able to confidently subtract a one-digit number from a two-digit number, demonstrating their understanding through fun activities and practice problems.
Materials and Prep
- Paper and pencil for writing problems and solutions
- A timer (optional, for timed challenges)
- A comfortable and quiet space to focus on learning
Before the lesson, make sure the student understands what two-digit and one-digit numbers are. Review basic subtraction concepts if necessary.
Activities
- Subtraction Story Time:
Have the student create a short story that involves subtracting a one-digit number from a two-digit number. For example, "There were 15 apples in the basket, and I gave 3 to my friend. How many do I have left?"
- Subtraction Race:
Set a timer for 5 minutes and challenge the student to solve as many subtraction problems as they can. Use numbers like 18 - 4, 23 - 7, etc. Keep track of how many they get right!
- Number Line Hop:
Create a number line on the floor using tape or by drawing it on paper. Have the student physically hop back to find the answer to subtraction problems. For example, for 14 - 5, they would start at 14 and hop back 5 spaces.
Talking Points
- "When we subtract, we are finding out how many are left after taking some away."
- "A two-digit number has two places, like 10s and 1s. Can you tell me what 23 means?"
- "Remember, when you subtract, you start with the bigger number and take away the smaller number."
- "If you ever get stuck, you can always use your fingers or a number line to help you!"
- "Let’s practice together! I’ll give you some problems, and we can solve them step by step."