George offered to help his granddaughter with homework because he remembered being good at arithmetic. Ten minutes later, he was asking the eight-year-old whether school had changed the meaning of “show your work.”
Lily’s worksheet asked her to plan a pretend school fair with a budget. George loved budgets. He fetched a calculator, a notebook, and a pencil sharp enough to make Lily move her elbow.
“First,” he said, “we need to know the price of a stall.”
“The sheet says pretend.”
“Pretend still costs something.”
Lily gave each stall ten imaginary pounds. George wrote “assumption” in the margin. She gave the cake table twenty imaginary customers. George asked whether the customers had been surveyed. Lily told him the customers were stick figures she had drawn at the bottom.
Her mother passed through the kitchen and found them debating the insurance implications of an imaginary bouncy castle. She reminded George that the assignment was for a child, not a committee.
“I am helping her think,” George said.
Lily thought for a moment and crossed out the bouncy castle. “Grandpa is too much paperwork,” she told her mother.
They moved on to tickets. Lily wanted them to cost one pound. George argued that fifty pence would be more inclusive. Lily argued that one pound was easier to multiply. Both points were reasonable, so George suggested two ticket types, a discount for families, and a refund policy in case of rain.
Lily stared at the page. “Can we have a fair where nobody comes?”
“Then you won’t raise any money.”
“I know. But we’ll finish the homework.”
George realized he had turned a one-page exercise into a small business. He apologized and asked Lily to explain what she needed. She had to add up costs, subtract them from ticket sales, and write one sentence about her choice.
They made a simple list. Ten pounds for decorations. Fifteen for cakes. Five for prizes. Forty tickets at one pound each. Lily added the costs herself and announced a profit of ten pounds.
“What would you spend it on?” George asked.
“More cakes.”
“That would reduce your profit.”
“I know. People like cakes.”
George looked at the sentence she wrote: “Our fair made ten pounds, so we can buy more cakes for next time.” It was clear, kind, and only one sentence. He wished several adults he had worked with could do the same.
On Monday, Lily brought the worksheet home with a gold star. Under the star, the teacher had written, “Excellent planning. Please tell me if your fair is real.”
George beamed. Lily said the teacher had laughed at his note in the margin: “Insurance pending.”
The next week, George volunteered again. Lily handed him a reading assignment instead. He looked relieved until he saw the question: “What do you think the character should do next?”
“There isn’t enough information,” he said.
Lily gave him her best teacher voice. “Show your work.”
George wrote an entire page. Lily wrote three sentences and got another gold star.
He still claimed he had helped. Lily agreed. “You showed me which answer was too long.”
That became his official job.