Attached please find a list of some great interactive visuals for learning or reviewing fractions. Geogebra is an interactive site. You can use these activities to model for your students whole class or in small groups. Or your students (Grade 3-5) can sign in using their Google Accounts and manipulate the variable as they solve a variety of math problems. Geogebratube.org has many lessons already created! Take a moment to explore all of their great resources.