This book would be great for higher level grades. Teaching using a thematic unit, integrating math and literature. After making predictions and reading book as class, students could observe their own environment and make their own word problems and then solve them. Students would be building skills in predicting, writing, creativity, problem solving, and word problems.
After researching I found a lesson plan similar to what I described above:
Grades 1 - 5
Grade level Equivalent: 3.8
Guided Reading: P