Describes teaching strategies in which children are encouraged to develop computational procedures that are meaningful to them. Authors state that classroom observation reveals most primary students to be capable of developing their own accurate solution procedures for multi-digit addition and subtraction as well as for simple multiplication and…

Describes the use of the Internet to investigate mathematical problems, create and share information, discover patterns and relationships, and find out more about the world. This unit investigates pet ownership and introduces children to telecommunications, the use of the computer as a tool, and scientific research methods. Other units address…

Describes a mathematical investigation of gold--how it is weighed, stored, used, and valued. For grades 3-4, children estimate the value of treasure chests filled with gold coins and explore the size and weight of gold bars. Children in grades 5-6 explore how gold is mined and used, and how the value of gold changes over time. (PVD)