What would you choose, handspan or fingers to find the length of these objects and why? Circle your options in the table. Try to guess before finding the length of these objects.
| Name of the things | Circle, what will you use? | My guess | My findings |
|---|---|---|---|
| Bottle | handspan or fingers | ||
| Spoon | handspan or fingers | ||
| Pencil | handspan or fingers | ||
| My friend’s nose | handspan or fingers | ||
| Leg | handspan or fingers | ||
| Key | handspan or fingers |
For measuring larger objects:
- Bottle, pencil, and leg — use handspan (these objects are longer).
For measuring smaller objects:
- Spoon, friend's nose, and key — use fingers (these objects are smaller than a handspan).
Conclusion: The choice depends on the size of the object being measured.
Explanation
The chapter presents a table where students choose between handspan and fingers for measuring different objects. Students first guess which unit is appropriate, then actually measure to verify. Larger objects like bottles, pencils, and legs are better measured with handspan, while smaller objects like spoons, noses, and keys require finger measurement for accuracy.
Solution Steps
Identify the size of the object to be measured.
For larger objects (bottle, pencil, leg), choose handspan as the measuring unit.
For smaller objects (spoon, friend's nose, key), choose fingers as the measuring unit.
The choice of measuring unit depends on the size of the object.