Splitting a Job Into Steps
Division of labor breaks one job into small steps so different workers can each do one. See how a card, a car, and a shoe get built.
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What this means
Imagine ten people need to make a hundred birthday cards. One way is for each person to make ten whole cards alone. Fold, draw, write, glue on a star, stuff the envelope, seal it. Every person does all six things.
There is another way. One person only folds. The next person only draws. The next only writes. The next only glues stars. The next only stuffs. The last one only seals. The card slides down the table from hand to hand.
That second way has a name. It is called division of labor. The word labor just means work. So it means the work gets divided up.
Each little step is a task. Folding is a task. Sealing is a task. In the second way, nobody does the whole card. Everybody does one task, over and over.
This is not a made-up classroom trick. It is how almost everything around you is built. A car rolls slowly down a long line in a factory in Michigan or Ohio. One group bolts on the wheels. Another group puts in the seats. Another paints. No single person builds a whole car.
Why it matters
Peek at things in your backpack. Your shoes, your notebook, your water bottle. Not one of them was made start to finish by one person sitting alone. Every one moved through many pairs of hands, each doing one step.
You have probably already used division of labor without naming it. Cleaning up a classroom goes faster when one group stacks chairs, one group wipes tables, and one group sweeps, instead of everybody wandering around doing a little of each.
Real-world example
A sneaker does not get built by one shoemaker. In a shoe factory, one worker cuts the fabric pieces. Another stitches the upper part together. Another shapes the sole. Another glues the sole to the upper. Another laces it, and another boxes it. Each of those is a separate task, and each worker does that same task hundreds of times a day. Airplanes, breakfast cereal, and phones are all put together the same way.
Try it
- Set up a card factory. Each student needs paper, a marker, glue, star stickers, and envelopes. Decide on six steps as a class: fold, draw a design on the front, write "Happy Birthday" inside, glue on a star, put it in an envelope, seal it.
- Round one is the solo round. Everybody makes whole cards alone, doing all six steps themselves. Run it for exactly four minutes. Count the finished cards and write the number on the board.
- Round two is the line. Line up six students in step order at a long table. Give each one only the supplies for their own task. Everyone else watches and takes notes.
- Run the line for four minutes with the same rules. Count the finished cards. Write that number next to the first one.
- Now name the parts. On the board, list all six operations in order. Next to each one, write the name of the student who did it and what tools they needed.
- Ask the watchers what they saw. Where did cards pile up? Which step was slowest? Did anyone run out of work and stand there waiting?
- Fix the line. Move one person to help at the slowest step, then run four more minutes and count again.
- Finish with a hunt. Name five goods made in the United States using division of labor. Cars, airplanes, cereal, furniture, and canned food are all fair game. For one of them, list three separate tasks you think the workers do.
Teacher note
Do not skip the solo round, even when class time is tight. Without a number to compare against, the line is just a fun activity, and students remember the fun instead of the idea. Two things reliably confuse students. First, they mix up division of labor with simply working in a group. A group where five people each build a whole card is not division of labor. It becomes division of labor only when the tasks are split and handed off. Ask "did you do the whole job or one piece of it" to draw the line. Second, they expect the line to be smooth. It will not be. A pile-up at the drawing step is a gift, because it shows that the whole line moves at the speed of the slowest task. Step 7 turns that frustration into the real insight. Expect the fix-up round to beat both earlier rounds. A student has it when they can name the separate operations in order and explain that a card only counts as finished after the last task, not the first.
Check yourself
Six students each make whole birthday cards by themselves at the same table. Is this division of labor?
On a card assembly line, the student who draws designs is much slower than everyone else. What happens?
Which of these goods made in the United States is built using division of labor?
Division of labor means one job is split into separate tasks so each worker does one step instead of the whole thing.