If you need to know how many sharks are in the ocean, do you count every single shark? You use random sampling! Random sampling is often a difficult lesson to teach in math. This is a great hands -on lesson to introduce the concept of sampling. There are so many other activities you can do with this book including graphing,creating fish in art, etc...
The journal prompts relate the activity to other populations that use sampling for estimating totals.
Before completing the activity, you will need brown paper bags filled with 30 rainbow fish of various colors for each group. A great cross-curricular activity!