Measurement

aaamath
http://www.aaamath.com/mea.html
 

Coordinate Geometry

Math.com
http://www.math.com/school/subject3/lessons/S3U1L2GL.html

Math Cats
http://www.mathcats.com/crafts/grids.html

Downloadable PowerPoint http://www.ceres.k12.ca.us/iweb/lessons/Monica%27s%20Math/Coordinate%20Geometry.ppt
 

Extras

Math Goodies Puzzles
http://www.mathgoodies.com/puzzles/