Curated OER
The Treasure Map
Third graders problem solve using drawings and map interpretations. They preview graphs and Cartesian geometry. They follow directions on a map using a grid and compass references while simulating they are reading a pirate map.
Curated OER
X Marks the Spot
Fourth graders use games and puzzles to explore co-ordinate systems and their uses. Students are given the opportunity to invent their own systems by locating counters on a sheet of paper and by finding the dead center of a set of objects.