Tilly the Turtle has written ten sentences and left out every apostrophe and every end mark, so the child supplies both. The ten are split between contractions (cant, isnt, were, whos) and possessives (Tillys shell, the dogs leash, Leos bike, Grandmas garden), which is the pairing that makes apostrophes confusing in the first place. Number 9 is the sharpest one on the page: “Its time to brush your teeth” needs no apostrophe at all.
Two jobs per sentence keeps the pace up without making the page feel like a test, and the turtle running through it gives a child something to talk back to. Printed in color, so it is one to run off at home rather than as a class set.