*This is an updated version of a post from my archives. The original version of this post was written in response to a teacher's request that I share some resources containing visual lessons on fractions.*

Thinking Blocks is a series of iPad apps nice site for elementary and middle school students. Thinking Blocks provides interactive templates in which students use brightly colored blocks to model and solve problems. As students work through the problems they are provided with feedback as to whether or not they are using the correct sequence to solve each problem. There are templates and problems for addition, multiplication, fractions, and ratios. Thinking Blocks is also available as a series of web-based activities.

Who Wants Pizza? is a fun online activity for learning about fractions. Who Wants Pizza was developed by Cynthia Lanius at Rice University. The activity has five parts plus practice activities for students to explore. Teachers will find notes about using this activities in the classroom.

Visual Fractions has eight categories of visualizations, lessons, and games for students to explore and learn the functions of fractions.

The National Library of Virtual Manipulatives has a lot of interactive activities for students learning the use of fractions, addition and subtraction, and the multiplication of fractions.