University of Cambridge
University of Cambridge: Nrich: Transformation Tease
Follow the directions at this one page website. You will get lots of practice plotting points on the coordinate grid and experience with transformational geometry.
TVOntario
Tvo Kids: Seedball
Learning game provides an introduction to grids and plotting points on a grid. Find the secret pieces and help Tumbleweed get his seeds to his car by making a path.
PBS
Pbs Learning Media: Calculating Distance Using the Pythagorean Theorem
This interactive exercise focuses on using the Pythagorean Theorem to calculate distance and plotting points on a Cartesian grid.
Harvard University
Harvard University: Maps and Mapping
This site is provided for by Harvard University. Students follow a map on a scavenger hunt, create a map of their classroom and their town, learn how to read topographic maps, and discover latitude and longitude in these inquiry activities.
Annenberg Foundation
Annenberg Learner: Taxicab Treasure Hunt
Find the treasure hidden at an intersection in the city. Use the clues. Read the instructions then scroll to the bottom and click "hide the treasure".