6th Graders have been leaning about how to measure length and how to convert units.  This began with students planning a trip to Mars, and trying to figure out how much space they would need on their ship, as well as how much the cargo would weigh.  Because have been studying the solar system and doing research on planets, Mrs. Collins has asked the 6th graders to help her 2nd graders learn more about space.  Last week we took the 2nd graders on a walking tour of a scale model of the solar system.   This week we will help 2nd graders learn more about individual planets.