"A revised and updated edition of the bestselling definitive Core Knowledge guide for parents and teachers of third grade-age children, featuring all new full-color photographs and illustrations and revised material"-- Provided by publisher.

Language and literature. Literature -- poetry -- stories -- mythology ; Learning about literature -- biography -- familiar sayings and phrases; Learning about language -- History and Geography. World history and geography -- look at the legend -- great rivers of the world -- Ancient Rome -- The Vikings ; American History and Geography -- Crossing the land bridge -- The Inuits -- The Mound Builders -- Cliff dwellers : the Anasazi -- The Pueblo people -- The Apaches and the Navajoes -- Eastern Woodland Peoples -- A day with Little Thunder -- Early Explorers in North America -- English colonies in North America ; Visual Arts -- Music. Elements of Musics -- Composers and their music -- Some songs for Third Graders -- Mathematics -- multiplication -- Division -- Numbers ; Working with numbers -- addition and subtraction -- Sums and differences of four-digit numbers -- time, money, and graphs -- geometry -- measurement -- multiplication -- division -- Roman Numerals -- fractions -- Science. Classifying animals -- Vertebrates and invertebrates ; The Human body -- the skeletal and muscular systems -- the human body : the brain and nervous system ; Light and vision ; Sound and hearing ; Astronomy -- Our solar system -- Constellations -- Space shuttle -- Nicolaus Copernicus -- WOmen on the final frontier ; Ecology. Living things depend on one another -- Pollution -- John Muir.