This site is like other online manipulative sites but there are less manipulatives. There are geometry manipulatives, ones used to count money, and other simple games and activities that can help with math skills.
Here is another simple, online manipulative that I used in one of my lessons that helps teach the concept of greatest common factor. It's another fun activity for students to come up to the interactive whiteboard and do in class. Not only is this a real-life example, but it reaches multiple learning styles, including verbal, visual, and tactile learners!
Great resouce for children's literature applicable to math lessons. You can search by grade or topic. The site also has links to some lesson plans and online activities which go with some of the books.
The NCTM website has excellent ideas for lesson plans, interactive on-line math activities, challenge problems, and more. NCTM offers many professional development resources such as journals, on-line conferences, information about regional conferences, an
Students will be able to describe the difference between area and volume and also be able to understand how various units of measure relate to one another.