Geometry

Plasers provides practice in the use of cartesian coordinates and operating with integers. 
Plasers: choose coordinates (+)

Plasers provides practice in the use of cartesian coordinates and operating with integers. 
Plasers: choose coordinates (+)
Plasers: choose coordinates (+/-)
Plasers: enter an equation (+)
Plasers: enter an equation (+/-)
Plasers: place bubbles (+)
Plasers: place bubbles (+/-)

Photo Hunt requires users to rotate a 3d scene so that a 'photo' replicates a given 2D picture.
Photo hunt: level 4

Face Painter requires users to identify the faces of 3D objects that are a certain 2D shape.
Face painter: finding faces 1

Shape Overlays asks users to overlay 2D shapes to create other shapes.
Shape overlays: picture studio