Eight things a first grader can name at a glance, each shown once on the left and three times on the right: a pig, a brush, a cake, a boat, a bench, a watch, a rabbit and a dress. The child writes the word for more than one on the line in between.
Two rule boxes sit at the top, one for adding s and one for adding es, each with a tiny example. The list mixes the two on purpose, so a child has to look at how each word ends rather than tacking the same ending onto every row.
Brush, bench, watch and dress are the ones to watch. They are the words where “just add s” sounds wrong out loud (brushs, watchs), and saying them is often the quickest way for a child to hear why es is there.