Teach your students about the work of various contractors who are involved in building a house. Show pictures of a house being built by construction workers. Explain the services of a general contractor, a surveyor, a heavy equipment operator, carpenter crew, electrician and a plumber. At the end of your lecture and illustrations, ask your class why is it useful to specialize when building a house.
Have each student write about her parents' professions and how it relates to specialization. Each student can write about the type of work that her parent provides at the company he works for and who the parent works with. Have your students write about human resources and how they help workers such as the parents with special skills and training.
Discuss how others can use their specialized skills to help another gain special skills to earn money. Have each student write down an item, a place or a competition that she desires. Then, ask each student what are some ways to earn money, such as babysitting, housecleaning, delivering newspapers, and painting jobs. Ask the students what are some ways that a person can develop skills to do the jobs.
Have your students read scenarios about specialization and discuss these stories in your classroom. Some books that you can invest in are: "My Dad's Job," by Peter Glassman; "Thank You, Mr. Falker," by Patricia Polacco; and "Tony's Bread," by Tomie dePaola. You can come up with a variety of questions to ask your classroom regarding each novel.