Solve Problems with Decimals
10 min
Narrative
The purpose of this Notice and Wonder is for students to consider the sport of luge and give them some numerical data that they will work with later in the lesson. The times and top speeds have been created and do not represent actual times from an event. The table is not labeled in order to encourage students to think about the meaning of the numbers.
Launch
- Groups of 2
- Display the image.
- “What do you notice? What do you wonder?”
- 1 minute: quiet think time
Teacher Instructions
- “Discuss your thinking with your partner.”
- 1 minute: partner discussion
- Share and record responses.
Student Task
What do you notice? What do you wonder?
| A | B |
|---|---|
| 48.532 | 82.13 |
| 48.561 | 82.75 |
| 48.626 | 82.81 |
| 48.634 | 83.07 |
| 48.708 | 82.80 |
Sample Response
Students may notice:
- There is a person on a sled.
- The numbers in Column A are increasing.
- The numbers in Column B are not increasing.
- The numbers in Column B are all bigger than the numbers in Column A.
- The numbers in Column A all have thousandths and the numbers in Column B only have hundredths.
Students may wonder:
- What is that person doing?
- What do the numbers mean?
- How do the numbers relate to the person on the sled?
- Why aren’t the numbers in Column B increasing like those in Column A?
Activity Synthesis (Teacher Notes)
- “The person in the picture is performing a sporting event called the luge. Athletes go down a steep ice track on a sled.”
- “The numbers on the left are the times, in seconds, it took different athletes to complete the course. The numbers on the right are the maximum speed, in mph.” Consider labeling the columns of the table.
- Invite students to share what they notice about the numbers. In the first column, numbers get larger from top to bottom and they all have 3 decimal places. In the second column, there are only two decimal places and the numbers are not in increasing or decreasing order.
Standards
- 5.NBT.3·Read, write, and compare decimals to thousandths.
- 5.NBT.A.3·Read, write, and compare decimals to thousandths.
20 min
15 min
Knowledge Components
All skills for this lesson
No KCs tagged for this lesson
Solve Problems with Decimals
10 min
Narrative
The purpose of this Notice and Wonder is for students to consider the sport of luge and give them some numerical data that they will work with later in the lesson. The times and top speeds have been created and do not represent actual times from an event. The table is not labeled in order to encourage students to think about the meaning of the numbers.
Launch
- Groups of 2
- Display the image.
- “What do you notice? What do you wonder?”
- 1 minute: quiet think time
Teacher Instructions
- “Discuss your thinking with your partner.”
- 1 minute: partner discussion
- Share and record responses.
Student Task
What do you notice? What do you wonder?
| A | B |
|---|---|
| 48.532 | 82.13 |
| 48.561 | 82.75 |
| 48.626 | 82.81 |
| 48.634 | 83.07 |
| 48.708 | 82.80 |
Sample Response
Students may notice:
- There is a person on a sled.
- The numbers in Column A are increasing.
- The numbers in Column B are not increasing.
- The numbers in Column B are all bigger than the numbers in Column A.
- The numbers in Column A all have thousandths and the numbers in Column B only have hundredths.
Students may wonder:
- What is that person doing?
- What do the numbers mean?
- How do the numbers relate to the person on the sled?
- Why aren’t the numbers in Column B increasing like those in Column A?
Activity Synthesis (Teacher Notes)
- “The person in the picture is performing a sporting event called the luge. Athletes go down a steep ice track on a sled.”
- “The numbers on the left are the times, in seconds, it took different athletes to complete the course. The numbers on the right are the maximum speed, in mph.” Consider labeling the columns of the table.
- Invite students to share what they notice about the numbers. In the first column, numbers get larger from top to bottom and they all have 3 decimal places. In the second column, there are only two decimal places and the numbers are not in increasing or decreasing order.
Standards
- 5.NBT.3·Read, write, and compare decimals to thousandths.
- 5.NBT.A.3·Read, write, and compare decimals to thousandths.