Look at the world from the point of view of a village of 100. A great book to help students get a sense of the world they live in and how they compare to the rest of the world population. Lessons can extend to Math and fractions, decimals, and percentages.
Kindness to our Earth is another important topic that cannot be left out when discussing kind action. Brainstorming as many ways as possible to be good stewards to our environment and Earth is a good startpoint.