Mr. Nale's
Virtual Classroom

Interactive Manipulatives

Venn Diagram (3 sets - you label!)   
Virtual Manipulatives
Pattern block manipulatives  
Base 10 blocks (with 100s chart)  
Virtual Dice - 6, 8, 10 or 12 faces  
Interactive clock (great for elapsed time!)  
Addition and subtraction  
Addition and subtraction of decimals  
Fraction bars (fractions, decimals and percents)  
Cuisenaire rods  
Attribute Blocks  
Tangrams or PBSKids Tangrams   
Tally Charts  
Interactive spinner
Make your own graph  
The Pythagorean Theorem  
The Value of Pi  

Interactive Resources (these are demos, but worth checking out!)

  Teaching Measures
  Primary games, vol. 1
  Primary games, vol. 2
  Teaching Time
  Teaching Tables (multiplication)
  Graph resources
  Function box
  Interactive Math Games