Level 2 Learning Objects

Algebra

National library of Virtual Manipulatives.
NLVM: Algebra manipulatives
Attribute trains
Tower of Hanoi

Geometry

Face Painter.
Face Painter requires users to identify the faces of 3D objects that are a certain 2D shape (more info).
Face painter: finding faces 1
Face painter: finding faces 2
Face painter: locating faces
Face painter: predicting faces
Finding symmetry.
Finding Symmetry helps users determine whether shapes have one, two or three lines of symmetry (more info).
Finding symmetry: three lines: garden
National Library of Virtual Manipulatives.
NLVM: Space manipulatives
Attribute blocks
Pentominoes
Tessellations
Pattern blocks
Geoboard
Polyominoes

Measurement

After School.
After School helps users read time on analogue clocks, digital clocks and as words (more info).
After school: analogue and digital
Angles.
Angles helps users measure or draw angles using other angles as units of measurement (more info).
Angles
School Day.
School Day helps users read time on analogue clocks, digital clocks and as words (more info).
School day: analogue
National Library of Virtual Manipulatives.
NLVM: Time manipulatives
Time: analog and digital clocks

Number

Dynamic Tools.
Dynamic Tools helps users explore fractions of shapes and grids (more info).
Shape fractions
Dynamic fractions
Fraction Fiddle.
Fraction Fiddle helps users explore problems involving fractions (more info).
Fraction fiddle: comparing unit fractions
Number Line.
Number Line helps users to record how they solve addition and subtraction problems using a number line (more info).
Number Line
Scale Matters.
Scale Matters helps users explore numberlines with a variety of scales (more info).
Scale matters: tens
Scale matters: hundreds
Scale matters: simple units Icon.
The Array.
The Array introduces users to the array model of multiplication (more info).
The array
The Difference Bar.
The Difference Bar helps users solve subraction problems by partitioning and comparing (more info).
The difference bar: make your own easy subtractions
The difference bar: generate easy subtractions
Difference bars Icon.
The Part Adder.
The Part Adder helps users add numbers by partitioning and combining (more info).
The part-adder: make your own easy sums
The part-adder: generate easy sums
The part-adder Icon.
The Take-Away Bar.
The Take-Away Bar helps users solve subraction problems by partitioning (more info).
The take-away bar: make your own easy subtractions
The take-away bar: generate easy subtractions
Take-away bars Icon.
Wishball.
Wishball is a game involving addition and subtraction with place value (more info).
Wishball: tens
Wishball: hundreds
Wishball challenge: tens
Wishball challenge: hundreds
National Library of Virtual Manipulatives.
NLVM: Fraction manipulatives
Fraction pieces
Fractions: visualising
Fractions: parts of a whole
National Library of Virtual Manipulatives.
NLVM: Number manipulatives
Numberline arithmetic
Numberline bars
Diffy

Statistics

Random Or Not.
Random Or Not explores random events with a focus on long run data being more reliable than short run data (more info).
Random or not: explore numbers of jubes (1:1:1)
Random or not: explore numbers of jubes (1:1) 
The Vile Vendor.
The Vile Vendor explores likelihood in the context of a machine which randomly dispenses disgusting drinks (more info).
The vile vendor: questions
The vile vendor: best guess
The vile vendor Icon.
National Library of Virtual Manipulatives.
NLVM: Data manipulatives
Spinners
Bar chart