Geoboard is exactly what it sounds like. A 25 pin geoboard. Students can explore shapes and geometric concepts. A quick screenshoot saves student work.
Virtual Manipulatives has fraction, decimal, and percentage blocks. Students can compare, find equivalence, and annotate their work.
School Kit Math has 24 math manipulatives and tools. Everything from simple counters to Algebra Tiles means this app is useful for K-8. Tools in SchoolKit Math include:
Number Line
Hundreds Chart
Ten Frame
Arrays
Money
Math Challenge
Fraction Kit
Number Houses
Tether Math
Number Tiles
Multiplication Table
Dot Grid
Bar Graph
Shapes
Algebra Tiles
Ruler
Clock
Counters
Times Place
Line Graph
Comparisons
Multiply Fractions
Multiplication/Division Groups
Fact Families
-Michelle