What will you do to change the world? For people living in the developing world, sometimes it's the simplest things that matter.

For example, take mango trees.

These trees bear fruit in many forms. When they are planted as a key element in school garden programs, children learn useful gardening and agricultural skills while caring for them. Their juicy and nutritious fruit is shared among the students as an incentive to come to school. Picture lush mango trees growing in schoolyards and allowing children to focus on their studies instead of their hunger.

This is what you can make happen.

Whether it's helping to provide mango trees, clean water, goats or other simple necessities, pledge to do your part to change the world.