We have several different ways of scoring on Spelling Shed and MathShed:
This is the main score used for leagues and is the total score from the past seven days. This may go down as well as up. It is rolling total which is calculated live and the score is cached after each game play. For example, if you earned 30 million points on Wednesday, the following Tuesday those points would be included in the shed score but on Wednesday, those points are now more than 7 days old so they stop being included in the score.
Your highest score
This is the highest score you have earned from one game
Your total score
This is your total score to date
This is the currency within the game and can be used to buy accessories for your avatar.