Raft : imp. & p. p. of Reave.

Raft n. : A collection of logs, boards, pieces of timber, or the like, fastened together, either for their own collective conveyance on the water, or to serve as a support in conveying other things; a float.

Raft n. : A collection of logs, fallen trees, etc. (such as is formed in some Western rivers of the United States), which obstructs navigation.

Raft n. : A large collection of people or things taken indiscriminately.

Raft v. t. : To transport on a raft, or in the form of a raft; to make into a raft; as, to raft timber.

Raft : of Reave

Example:
How can i build a Raft out of foil and straws in order to have it hold the most pennies?

Taxonomy
RAFT, teachers, hands-on, San Jose, technology, art, science projects, math projects, Resource Area, Redwood City, hands-on experiences, donation, hands-on training, technology training, Non-Profit Corporation, non-profit organization, educators, hands-on learning.

Defination from the web:
RAFT believes hands-on teaching is the best way for our children to learn, so we provide teachers and community groups with creative tools and materials to promote hands-on teaching in science, math, technology, and art.