• National Library of Virtual Manipulatives
  This site provides interactive mathematics in the categories of Number operations, Algebra, Geometry, Measurement, Data and Probability arranged by grade levels Pre K -2, 3-5, 6-8, and 9-12
  A digital library containing Java applets and activities for K-12 mathematics
  activities applets education interactive java manipulative math mathematics mathlet online virtual
  in Science and Math > MATH ONLY with interactive manipulative virtual by 9 users
• ESL/ELL
  Shop by Subject - Teachers - Learning Resources® sells many manipulatives that support instuction for ELLs. See the reading rods and the math manipulatives. Recommended by Amy Haber
  Succeed in the classroom with our ESL teaching materials at Learning Resources®. Begin teaching ESL with phonics materials like our Reading Rods®. Our ESL teaching materials are designed for a hands-on approach to language learning.
  in English as a New Language > Materials for ELLs with learning manipulative materials resources
• Hands-On Equations
  This is a commercial product that uses manipulatives in game-like ways to introduce Algebra. It appears to be incorporate the strategies recommended for teaching ELLs
  in Science and Math > MATH ONLY > Strategies for Math with algebras hands-on manipulative math

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