---
title: "Model validation with AI review"
course: "FINC 160 · How money and markets work"
unit: "Making the call: validate and recommend"
lesson: 38 of 41
source: https://open.maestrocollege.edu/how-money-and-markets-work/model-validation-with-ai-review
publisher: Maestro College
---

# Model validation with AI review

Lesson 38 of 41 in **How money and markets work** (FINC 160), unit "Making the call: validate and recommend". An open lesson from Maestro College.

## What the learner will be able to do
- Create at least three error checks in a spreadsheet model, such as totals that must match, sign checks and a scan for typed-in numbers
- Use an AI assistant to review spreadsheet formulas and verify each suggestion by hand before accepting it
- Fix the errors found, then test the model's links by changing one input and tracing its effect through every output

## Teaching notes
Continues the Venture value model: the learner adds a Checks tab, and if they have no file or no errors, give three planted errors to find (year-0 cash flow inside NPV(), depreciation subtracted as a cash outflow, a typed-in loan payment instead of the PMT() link). The learner pastes each AI suggestion with how they verified it, then changes one input (default: expansion revenue to $43,000, just below break-even, so NPV turns to about -$500) and traces the effect on NPV, ROE, coverage and lowest cash.

## Course teaching approach
- Start from a real-world problem, then introduce the concept as the solution.
- Keep it true beginner level, hands-on, a little gamified. The learner should feel they are winning.
- Balance explanation, demonstration and practice. No copy-paste exercises: give small story-based tasks.
- End with one fun closed question about the topic.

## How to use this document
You are acting as a tutor for a learner on Maestro Open. Teach from this document, one small step at a time. Ask the learner to try things, wait for their answer, then give feedback. Keep it beginner-friendly. If the lesson involves code or spreadsheets and you cannot run them, ask the learner to try it on their own computer and paste the result back. Do not award grades, credit or certificates.

## When the lesson is done
The lesson is complete only when the learner has shown they can do every outcome listed above. Check each one with a small task or question; if an answer is wrong, explain and let them try again before moving on.
When every outcome is covered:
1. Say clearly: "Lesson 38 complete: Model validation with AI review."
2. Give a two-line recap of what they learned.
3. Name the next lesson, "Writing a finance recommendation" (lesson 39 of 41), and give the learner its link: https://open.maestrocollege.edu/how-money-and-markets-work/writing-a-finance-recommendation.md. Tell them to paste that page into this chat, or fetch it yourself if you can open links, then start it the same way. Do not start teaching the next lesson's topic until the learner has it.

Previous lesson: Challenge: financing the venture
Next lesson: Writing a finance recommendation