Transformations Unit
Transformations....Translations (slide), Reflection (flip), Rotation (turn), Dilation (grow/shrink)
Introductory video 
http://www.youtube.com/watch?v=JX3VmDgiFnY&feature=related 

Interactive website 
http://staff.argyll.epsb.ca/jreed/math7/strand3/3301.htm 

Practice and Assessment 
http://www.studyisland.com/ 

Lesson 
http://www124.studyisland.com/lessWin.cfm?lcfid=1&CFID=477688&CFTOKEN=90978506&QGID=69552&TempID=2283&SeqNum=1&showComment=1 

Worksheet 

Please see Classes Pre-Alg/Math 7A: Assignments Transformation