Ann Heinrichs

Explains many spelling rules and their exceptions, including those for spelling words, forming plurals, and adding suffixes.

Describes the geography, history, economy, culture, and people of the state of Maine, and includes ideas for classroom assignments.

Explores the land, people, history, economy, and travel opportunities of the state of Delaware.

Presents a short history of Thanksgiving examining ancient harvest festivals, the first Thanksgiving in the new world, becoming a national holiday in 1863, and decorations and celebrations.

Describes the geography, history, economy, culture, and people of the state of North Carolina, and includes ideas for classroom assignments.

Presents an introduction to prefixes and suffixes, in simple text with illustrations, including definitions of each, with information on how meanings can be changed by adding tags at the beginning or end of a word. Includes examples.

Describes the geography, history, economy, culture, and people of the state of Nevada, and includes ideas for classroom assignments.

Describes the life and work of the twentieth-century physicist whose theory of relativity revolutionized scientific thinking.