sentences:  Teachers and youth leaders have the ability to book trips and organize funding through the grants made available by the NPF and the Park Steward Program.These grants are often known as "field trip grants" because they are used by schools to provide young students the opportunity to not only see, but also engage with a national park.In March 2020, The National Park Foundation announced that it has engaged more than a million students in educational programs with national parks across the country since 2011.