I believe Stellaluna would be good to read in kindergarten through third grade. It tells a story about acceptance into a different family. It teaches students about friendship and the different stages of learning we go through as we get older.
Alexander and the Terrible, No Good, Very Bad Day is a great first grade book. It teaches realism, and that somedays aren't always perfect and somedays everything will seem like it is going badly. There is always tomorrow though. Things can get better.
Teammates would be great to read in a first grade classroom. The story teaches us that sometimes you may be right but no one will agree with you, but you should defend what is right. It also teaches a history lesson about segregation and bigotry of baseball's past.
Mind Your Manners B.B. Wolf would be good for a first grade classroom or any classroom that may need a lesson on manners. It has so many familiar fairy tale characters that children would love to read about.
Ferdinand would be an awesome book to read in a kindergarten classroom. The bull only wants to be himself even if that means he's not like the other bulls. It teaches the life lesson that meekness can be a strength.
Where the Wild Things Are would be a great story to read to kindergarten students or first grade students. It teaches about the importance of a creative imagination. The boy travels to a land of monsters where he's king but decides to come back to reality which is home when he finds out dinner is ready.
The Sneetches would be a great book to read in the kindergarten through second grade classroom, and teaches a lesson to embrace who you are and don't worry about the things that you cannot change about yourself.
I believe Corduroy would be great for students in Kindergarten through third grade. It teaches about friendship and learning to love who you are.
Charolette's Web is a favorite book of many teachers and students in third and fourth grade. Everyone loves the main character, Wilbur, Charlotte's Web and hopes that they can find a friend as good as Charlotte in their own lives. Reading this novel can help students learn comprehension skills, discuss themes, and work on writing skills.