Let's solve this step-by-step based on the worksheet titled
"Centimeter and Meter" for
Grade 1.
🌟 Objective:
Choose the correct unit (either
meters or
centimeters) to measure each object, using the following guidelines:
-
✔ Use
centimeters for
short lengths (like small objects).
-
✔ Use
meters for
longer distances or larger objects.
---
🔍 Let's go through each object:
#### 1.
Sofa
- The sofa is a large piece of furniture.
- It is long and takes up a lot of space in a room.
-
Best unit: Meters
>
✔ Reason: Sofas are typically 1.5 to 2 meters long — too big for centimeters.
#### 2.
Desk (Table)
- A desk is also a large object that fits in a room.
- It’s longer than a meter but not extremely long.
-
Best unit: Meters
>
✔ Reason: Desks are usually around 1–1.5 meters long — best measured in meters.
#### 3.
Mobile Phone
- A phone is small and fits in your hand.
- Its length is only about 10–15 cm.
-
Best unit: Centimeters
>
✔ Reason: Centimeters are used for small objects like phones.
#### 4.
Notebook
- A notebook is small, about the size of a book.
- Typical size: 20–30 cm long.
-
Best unit: Centimeters
>
✔ Reason: Small enough to be measured in centimeters.
#### 5.
Chair
- A chair is tall enough to sit on, but not as long as a sofa.
- Height is usually around 70–90 cm.
- While it might seem close,
heights of chairs are generally measured in meters, but since it's less than 1 meter,
centimeters are more precise.
- However, in real-life contexts,
heights of furniture like chairs are often expressed in
centimeters for accuracy.
-
Best unit: Centimeters
>
✔ Reason: Chair height is short and best measured in centimeters.
---
✔ Final Answers:
| Object | Choose the unit |
|--------------|---------------------|
| Sofa |
Meters |
| Desk |
Meters |
| Mobile Phone |
Centimeters |
| Notebook |
Centimeters |
| Chair |
Centimeters |
---
💡 Summary:
- Use
meters for
larger objects like sofas and desks.
- Use
centimeters for
small objects like phones, notebooks, and chairs.
✔ This helps students understand
when to use which unit based on size.
Let me know if you'd like this turned into a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of centimeters and meters 2nd grade worksheet.