New Geometry Unit websites to practice.  

Surface Area Lesson and Activities
http://www.brainingcamp.com/resources/math/surface-area/

http://www.math4children.com/Grade4/games/Geometry/geometry/


Surface Area and Volume
http://www.shodor.org/interactivate/activities/SurfaceAreaAndVolume/

http://www.scholarnet.co.nz/member/courses/smol/data/site/flash_apps/Measurement.php

http://www.onlinemathlearning.com/volume-games.html

http://www.interactivestuff.org/sums4fun/3dboxes.html

http://illuminations.nctm.org/ActivityDetail.aspx?ID=6

Topic: Area and Perimeter of shapes
http://www.mathplayground.com/PartyDesigner/PartyDesigner.html

Topic: Area of Parallelograms and triangles

http://illuminations.nctm.org/ActivityDetail.aspx?ID=108

Topic: 3d shapes

http://www.math-play.com/3d-shapes-game/3d-shapes-concentration.html