Does your school "do" advisories? Advisory programs are regularly scheduled, structured, school day meetings where teachers meet with students in small groups or individually to discuss academic and social issues. They're a great way to ensure that at least one adult in the school knows each child well and they foster community in the school. This excellent resource from AMLE overviews and makes a convincing case for using an advisory program in your school.
Separate book and toolkit with hands-on, applicable motivational and behavior modification tools and information. Usually I've found the toolkit with its reproducibles to be very handy for copying external reinforcers such as classroom rewards bucks. I've linked to the toolkit on Amazon and the book shows up below.
Webpage that lists the various social skills middle school students need grouped by type of skill. This is useful for putting together a program for a specific student because you can quickly find the skill you need and then do directly to a lesson plan and task analysis plus a rubric to that you can copy and made adjustments to as needed for your situation. Most likely you will need to address several skills from different areas so this is a good resource for different skills.
This is one of the best videos I have found on how to actually go through a role play.While it deals with an adult topic, the steps would work for any age. You can either write the role play or have the students decide. I find that both facilitating role play and getting students to role play tough situations can challenging and awkward. There are lots of awkward role playing examples on youtube to make you feel better!
Classic book that cleverly highlights teacher/child communication and how to effectively respond using comic strips. I found this provided helpful and useful suggestions when I was confronted with a difficult situation that I wanted to respond to in a way that would encourage growth in children rather than shutting them down during a challenging circumstance. I feel like many of the situations are geared towards younger students but the book also teaches a receptive mindset for adults.
Excellent blog with a variety of resources and information about teaching social/emotional skills. I've linked to her main page because I think she has so many great things to share. I've also included a link to one of my favorites sections which is on perspective taking. She has great photos of animals and funny babies with thought bubbles on them. Students can then write about the different perspectives that each character might have.
Michelle Garcia Winner coined the term "social thinking" in the 90s and now is the author and pubished of multiple practical resources revolving around emotional intelligence. I've linked to her curriculum for ES level students which is Superflex, a Superhero Social Thinking Curriculum. Superflex and a variety of other characters provide a structure for teaching about social awareness and behaviors. It can be very motivating. This is the part of her work I am most familiar with.
Joel Shaw, LCSW graciously provides links to multiple relevant hands-on and interactive free activites. I've had the most success with the builder game (turn taking skills) and the fortune tellers that facilitate discussions. The hands on nature of both is a big plus and both can be adapted to specific situations.
These are two books which task-analyze multiple social skills for either elementary and secondary students. I've used these books for years as a foundation for writing IEPs and developing social skills learning programs. The books emphasize slightly different skills and I've found that they can be easily adapted for a variety of age levels. In addition to the specific skills, there is a useful section on how to teach role playing with a group of students.