From School Library Journal:
Kindergarten-Grade 3-Sarah is hiding under her covers as Mr. Hartwell asks, "You don't want to miss the first day at your new school do you?" From under the blanket she replies, "I'm not going." When he reminds her how much she liked her other school and asks her to think of all the new friends she'll meet, she imagines a classroom where a paper airplane is flying, a boy is pulling his neighbor's pigtail, and another is blowing a gigantic bubble. Mr. Hartwell finally gets Sarah to stumble out of bed, eat a bit of toast, and get into the car where she slumps down into her seat. At school, the principal cheerfully welcomes her and takes her to the classroom where she is introduced as "Mrs. Sarah Jane Hartwell," the new teacher. There is a bit of foreshadowing that Sarah is an adult, but as she is always partially hidden, the ending will come as a surprise to most readers. The ink-and-watercolor illustrations are full of action and maintain the lighthearted tone. A little subplot in the paintings shows the family cat and dog having their own contest of wills while their owner is trying to get his wife up and out. The joke provides a good laugh and children may find it reassuring that they are not alone in their anxieties about new situations.
Like millions of children, Sarah Hartwell dreads the first day of school. Will she make new friends? Will the kids like her? As we follow Sarah through the struggles of getting out of bed, being driven to school and being greeted and escorted to her classroom by the principal herself, your child will be delighted to learn that Sarah is not a student - she is actually the new teacher. This book is a great way to tell kids that it’s ok to be nervous and that even adults get nervous, too.