There are several reasons I assign groups for a project like this. One is to create diversity as it is important for students to learn to work with many different people. The other is to balance strengths as I want to help set them up for success since it is a major assignment. Additionally, research regarding the skills students need in order to have an advantage when seeking employment supports requiring them to work through what they perceive to be communication challenges.
A project such as the Child Right's project not only allows students to help their community, it also offers them very important practice in the "Top 5" skills employers look for.
“Top 5” skills desired by employers in the coming decade:
1. Communications Skills (listening, verbal, written). The ability to effectively communicate is by far, the one skill mentioned most frequently by employers. Having the ability to listen, write, speak effectively and facilitate communication are absolutely critical.
2. Analytical & Research Skills. Your ability to assess a situation, seek multiple perspectives, gather more information if necessary, and identify key issues that need to be addressed are critically important.
3. Computer & Technical Literacy. Your ability to showcase your proficiency with technology and its applications are crucial in the information age.
4. Flexibility/Adaptability/Managing Multiple Priorities. Your ability to manage multiple assignments and tasks, set priorities, and adapt to changing conditions and work assignments is absolutely critical.
5. Interpersonal Abilities. This one is very similar to your ability to communicate, but is specific to the ability to relate to your peers/co-workers, inspire others to participate, and solve conflict with peers/co-workers.
Source: http://www.coursepark.com/blog/2011/01/top-10-skills-employers-are-looking-for/