"With help from his friends Ben and Eva, Astro the Alien learns about honesty when he lies about breaking a toy and cleaning up his room. Includes a note to caregivers, reading activities, and a word list"--
"Astro the Alien Learns about Honesty" by Emmy Sohn, is a very good book about honesty and the consequences of being dishonest. I feel this might help teachers to explain to their students why being dishonest is bad for relationships between students as well as between students and teachers.