All group members receive one grade based on following:

Assessment        Value         Dad's looking for:

forecast factors   50%      A match between factors and forecast
                            weather. For example, it would be wrong
                            to write "sunny" by a low pressure center.

presentation       25%      Neatly drawn maps using correct symbols
                            for fronts and pressure centers.

accuracy           25%      A reasonable decision on which destination 
                            is best.