A fun way to model fractions. Fraction Foldable with Decimal and Percent. Whole, 1/2's, 1/3's, 1/4's ,1/5's, 1/6's, 1/8's and 1/10's fractions are included. I like to keep all of the circles together with a brad in the center.
math...this link doesn't take you to this particular resource, but I have these addition facts cards and I see they used Legos or some other block combinations to make a hands on learning activity...cool.
Math Coach's Corner: Using Number Bracelets to Develop Number Sense. Like dot cards and rekenreks, number bracelets provide concrete practice for number combinations and composing/decomposing numbers. Check out this post for instructions for making and using number bracelets.