Why do I need to know about estimating square numbers

The video emphasizes the importance of understanding square numbers and their practical applications in real life, such as estimating areas in yard work. The teacher explains how knowing square numbers can help in estimating and solving problems, even if the specific example of mulching a yard may not apply to everyone. The key takeaway is the ability to estimate and work backwards using square numbers, which is a valuable skill in various real-life situations.

What new insight or understanding did you gain from this video?