First, there is Study Jams. This is a free site that gives you so many lessons for kids to learn math and science. Today we learned about congruency. Use it because Study Jams is awesome, awesome, awesome!!!
Also, here are the IXL topics you can use to practice on your own. The starred ones are the ones I would like you to work on first!
Vertical and Adjacent Angles
Singapore Math Triangle Angles = 180 Degrees
Classification of Triangles
How To Use A Geometric Compass