Houghton Mifflin science discovery worksWilliam Badders, Lowell J. Bethel, Victoria Fu, Donald Peck, Carolyn Sumners, Catherine Valentino · First published 2004Open the Tome
Discovery Works Science Teaching GuideWilliam Badders, Lowell J. Bethel, Victoria Fu, Donald Peck, Carolyn Summers, Catherine Valentino · First published 2000Open the Tome
DiscoveryWorksWilliam Badders, Donald Peck, Lowell J. Bethel, Carolyn Sumners, Victoria R. Fu, Catherine Valentino · First published 1996Open the Tome
Light and SoundWilliam; Bethel, Lowell; Fu, Victoria; Peck, Donald; Sumners, Carolyn; Valentino, Catherine; Mullane, Mike Badders · First published 1996Open the Tome
Populations and EcosystemsWilliam; Bethel, Lowell; Fu, Victoria; Peck, Donald; Sumners, Carolyn; Valentino, Catherine; Mullane, Mike Badders · First published 1996Open the Tome
Silver Burdett Ginn Science Discovery Works Teaching Guide Properties of MatterWilliam Badders Lowell Bethel Victoria Fu Donald Peck Carolyn Sumners Catherine Valentino Mike Mullane · First published 1996Open the Tome
