More Write-Your-Own-Problems

More "Stay or Go" work today with addition combining stories.  To keep the independent workers interested, I asked them to write their own combining problems related to "Make Way for Ducklings" which we've been reading together as a Big Book.  Very sweet results:  "There were 7 baby ducks and the mom and dad came back.  How many ducks were there?"  "Three ducks crossed the street.  Then 5 more ducks crossed the street.  How many ducks altogether?"