Hence the mouths you saw come home with removable teeth.
The words for the week and both books are now up on the lingt website to practice.
Keep helping your child practice and review them.
Also one quick comment. There are a few definitions in the back of the book that are incorrect.
In There are people here, 个 does not mean "after". It is a classifier word, like "pair" of shoes or "loaf" of bread. Chinese has many many classifiers, "ge" being the most generic and frequently used. It's what we use when talking about people. Ex. Yi ge ren =one person.
人 means people/person, not also.