This website lists a variety of different book resources to use for Math. There are books for all ages listed on this website. It's a great way to integrate Language Arts in Mathematics! ☺
This website is a lot of fun for kids who want a challenge with brain teasers! It is great for problem solving and there is a large list with a variety of different problems.
This website is great when needed to reference anything dealing with Geometry or Trigonometry. It provides links to different properties of shapes, which is great for kids! The website also provides explanations and definitions when trying to find the area or perimeter of a geometric figure.