Math:

Fractions
http://math.rice.edu/~lanius/fractions/frac3.html

Fraction tutorial
http://www.kidsolr.com/math/fractions.html

English:

Adjectives Video
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Adjectives

Verb Tense Starship Blast-off!
http://www.bbc.co.uk/schools/starship/english/games/blast_the_rocket/small_sound/standard.shtml

Reading:

Starfall
http://www.starfall.com/