Every month I try to add a "Challenge Corner" to the English Board.
They are quite popular with the kids. In particular I find that these worksheets are most popular with the 3rd and 4th graders.
Some of my HRTs have also begun making their own copies of my worksheet and having the kids work on them during class when we find that we still have 5-10 min at the end of class that need to be filled. So aside from being an English Board activity the worksheets can also work as a way to give kids extra practice during class.
In exchange for doing the worksheet I give the students a sticker and make any corrections to the worksheet that may be needed.
I have made an editable version of the file so please feel free to adapt this to however benefits you!