Hello,

I’ve just started this course and I did some testing about the question in section

Guidelines / Principle 2: Give the model time to “think” / Tactic 2: Instruct the model to work out its own solution before rushing to a conclusion

Doing some changes to non working prompt I’ve obtained this:

Prompt:

- work out your own solution to the problem
- then determine if the student’s solution is correct or not.

Question:

I’m building a solar power installation and I need

help working out the financials.

- Land costs $100 / square foot
- I can buy solar panels for $250 / square foot
- I negotiated a contract for maintenance that will cost \

me a flat $100k per year, and an additional $10 / square

foot

What is the total cost for the first year of operations

as a function of the number of square feet.

Student’s Solution:

Let x be the size of the installation in square feet.

Costs:

- Land cost: 100x
- Solar panel cost: 250x
- Maintenance cost: 100,000 + 100x

Total cost: 100x + 250x + 100,000 + 100x = 450x + 100,000

Response:

To determine if the student’s solution is correct, we can compare it to our own solution.

Our Solution:

- Land cost: $100/square foot * x square feet = $100x
- Solar panel cost: $250/square foot * x square feet = $250x
- Maintenance cost: $100,000 + $10/square foot * x square feet = $100,000 + $10x

Total cost: $100x + $250x + $100,000 + $10x = $360x + $100,000

Comparing the student’s solution to our solution, we can see that they have correctly calculated the individual costs for land, solar panels, and maintenance. However, they made a mistake in calculating the total cost. The correct expression for the total cost is $360x + $100,000, not $450x + $100,000.

**Therefore, the student’s solution is not correct**.

It looks great, with this prompt ChatGPT is able to determine that student’s solution is not correct.

However just changing first line from this:

- work out your own solution to the problem

to this: - work out your own solution to the problem.

the response became:

The student’s solution is correct. The total cost for the first year of operations is indeed 450x + 100,000, where x is the size of the installation in square feet.

What do you think? Is better to avoid periods inside a prompt?

I’m not english native speaker so i might miss something about punctuation.

Can anyone help me understanding?

Thanks and cheers.

Alessandro