National Council of Teachers of Mathematics
The Math Forum: Lesson Plans: Fractions
Teachers, this is the place to come for fraction lesson plans if you teach elementary students. All the topics have a number of resources available from which to choose.
abcteach
Abcteach: Fractions
[Free Registration/Login Required] A collection of teacher-created fraction activities, patterns, and manipulatives that are printable. Includes flashcards, worksheets and a take-home project with fractions for both primary and elementary.