Phase+7_Bibliography

Harcourt School Publishers. "Keeping it True." __ Math Jingles .__ [] (19 June 2010).

Utah State University. "Algebra Balance Scales." __ National Library of Virtual Manipulatives .__ http://nlvm.usu.edu/en/nav/frames_asid_201_g_3_t_2.html?open=instructions&from=topic_t_2.html (19 June 2010).

Wattamack4. "Sesame Street - One Of These Things - Letters and numbers.” __Youtube __. http://www.youtube.com/watch?v=Ect-kgxBb4M (19 June 2010).

Wattamack4. "Sesame Street - One of these things - Circles .” __Youtube __. http://www.youtube.com/watch?v=FClGhto1vIg (19 June 2010).