The websites of the National Council of Teachers of English, the United Federation of Teachers and Discovery Education are each well known resources for teaching lesson plans. The National Council of Teachers of English provides its own collections of lesson plans and links to other viable sources, such as ReadWriteThink.org.
The National Council of Teachers of English website, NCTE.org, has lesson plans designed specifically for teaching English, writing and general literacy. Lesson plans tie in with classic texts or with examples of nonfiction and technical writing that students often encounter in various subjects.
At ReadWriteThink.org, lesson plans fall into categories, such as most popular, standard and featured and also include lesson plans for teachers of certain grades and age groups. Similar to NCTE.org, the United Federation of Teachers website offers links to trusted online sources of lesson plans, such as PBSLearningMedia.org, a source of more than 500 free lesson plans, as of 2015. The library of lesson plans includes all subjects and grades.
On most of the websites, professional teachers submit actual lesson plans. Some of the plans correspond to curriculum and learning objectives that are aligned to Common Core State Standards. Other lesson plans focus on guiding students through remedial coursework.
DiscoveryEducation.com has lesson plans for grades kindergarten to 12 in a wide variety of subjects, including social studies, business, arts, literature and mathematics. Featured lesson plans appear periodically, focusing on unique concepts such as farm-to-table and urban gardening.