Final answer:
Mariam needs a measuring tape for curtains, Val needs a thermometer for measuring fever, and Linda should use a ruler for the length of her notebook. Each tool is selected based on the size of the item to be measured and the context of the measurement.
Step-by-step explanation:
To answer the students' questions:
- Mariam would need a measuring tape to find the length of cloth needed for her curtain because it can flexibly measure both small and large lengths, and can be used for measuring the dimensions of home items such as curtains.
- For Val to find out if his mother has a fever, he would need a thermometer, a medical instrument designed to measure body temperature.
- Linda should use a ruler to measure the length of her notebook, as it is a small object and this tool is suitable for measuring in inches or centimeters.
These measuring tools are specifically designed for their respective tasks, and choosing the right one is crucial for obtaining accurate measurements.