The extent to which pupils manipulate materials and attainment of process skills in elementary school science.

Míreanna comhchosúla

• Instructional materials; an introduction for teachers.
  de réir: Shores, Louis, 1904-
  Foilsithe / Cruthaithe: (1960)
• About learning materials /
  de réir: Klein, M. Frances, 1932-
  Foilsithe / Cruthaithe: (1978)
• Practical teaching materials /
  de réir: Davies, Robert Harry
  Foilsithe / Cruthaithe: (1962)
• Integrated teaching materials : how to choose, create, and use them /
  de réir: Thomas, R. Murray (Robert Murray), 1921-
  Foilsithe / Cruthaithe: (1963)
• Integrated teaching materials: how to choose, create, and use them,
  de réir: Thomas, R. Murray (Robert Murray), 1921-
  Foilsithe / Cruthaithe: (1960)