Which of the following is the most appropriate activity to introduce the concept of measurement among primary grade learners ?
1
Giving a meter scale to children to measure the length of their mathematics textbook.
2
Asking the children to use a wooden duster as a weight on a balance to find out which objects are heavier or lighter than the duster.
3
Asking children to approximate the sum of two numbers, 38 and 42.
4
Asking children to estimate the weight of their peers.