Virtual Manipulatives Return to 4th Grade 1″ Color Square Tiles (by Didax) Abacus (Virtual) Base Ten Blocks (by Didax) Dice Fraction Circles (by Toy Theater) Fraction Tiles (by Didax) Multiplication Chart (by Toy Theater) Partial Product Finder (by Math Learning Center) Pattern Blocks (Virtual) Place Value Decimal Strips (by Toy Theater) Place Value Discs – 1 to 1000000 (Printable PDF) Place Value Discs (by Didax) Place Value Strips (by Toy Theater) Two-Sided Counters (Virtual) Virtual Cuisenaire Rods