First and foremost, you need to have an accurate knowledge of every inch of ground over which you are going to take your students, so you know what it will yield to them of interest and information. You also need to design your study to fit the season at hand. Summer hosts an abundance of flowers, insects, trees, and seeds to be identified. And lots of items to be brought back to the classroom to study when the winter air is too crisp to venture out in for long. Don't forget your good temper and a trusty whistle though.
Nature offers a wealth of resources to mankind.
Why our existence today is largely thanks to the resources mined from this forest. The wonderful thing about forests is that, managed wisely, they can continue to provide resources for generations to come. The forest is the most highly organized portion of the vegetable world. It takes its importance less from the individual trees which help to form it than from the qualities which belong to it as a whole. Although it is composed of trees, the forest is far more than a stand of trees standing in one place.