Lesson plan · Investing · Lesson 2
Stocks
Owning a piece of a company — and why stock prices move.
- 45 minutes
- Grades 9–12
- Intermediate
- Activity: small groups
Objectives
Students will be able to:
- Explain what owning a share of stock means
- Describe the two ways stock investors can earn a return
- Calculate a company's market capitalization
Materials
- Slide deck and a projector
- Worksheet (one per student)
- Exit ticket slips (bottom of the worksheet)
Key vocabulary
- Market capitalization
- A company's total stock market value: share price × number of shares. It's how people compare the size of public companies.
45-minute agenda
- 0–5 min
Warm-up
Post: “If you owned one share of a company you use every day, what would you actually own?”
Teacher note: A tiny slice of the whole company — its profits, assets, and future — not a product or a store.
- 5–17 min
Direct instruction
Present the lesson slides. Make sure students leave with these points:
- Stock = ownership in a company.
- Returns come from price changes and (sometimes) dividends.
- Prices move on expectations, not just results.
- Market cap = share price × shares outstanding.
- One company is a concentrated risk.
Use the “See it” slide (How a stock works) to make the idea visual.
- 17–22 min
Worked example
Walk through “Why a stock dropped on good news” on the slides. Pause before the result and ask students to predict it.
- 22–32 min
Headline Reactions
Format: small groups · 10 minutes
- Read five made-up headlines: (1) “Company's profit rises 10%, but it expected 25%”; (2) “Company loses money, but losses were half what analysts expected”; (3) “New CEO announces bold expansion”; (4) “Company's biggest product recalled”; (5) “Company raises its dividend.”
- Groups predict whether each stock would likely rise or fall, and explain why using the word “expectations.”
- Compare predictions with the lesson's example of a stock dropping on good news.
What to look for: (1) likely falls — good, but worse than expected. (2) could rise — bad, but better than expected. (3) uncertain. (4) likely falls. (5) often rises. Prices move on results compared with expectations.
- 32–37 min
Check for understanding
Use the question slides — or run them as a Four Corners game. Answers:
- What do you own when you buy a share of stock? — B. A small piece of ownership in the company
- What's the most likely explanation? — A. Investors expected even better results, so the price adjusts to the disappointment.
- All companies pay dividends to their shareholders. — False
- 37–42 min
Discussion
- Why might someone want to own a small part of a company they use every day?
- Should stock prices be driven by investor mood? What problems does that create?
- 42–45 min
Exit ticket
Prompt: Why can a stock fall even when the company reports good news?
Answer: Prices reflect expectations. If results are good but not as good as investors expected, the price can drop.
Differentiation
Common misconception
“A $5 stock is cheaper than a $500 stock.” Share price alone says nothing — compare market cap and earnings.
Support
Give the market cap formula with a worked example using small numbers (10 shares × $3).
Extension
Pick a public company and find its market cap and its dividend (if any). Explain what each number means.
Homework or make-up work
Students can complete the full interactive lesson — including its knowledge check — at learnwithflc.org/courses/investing/stocks. No account needed; progress saves on their device.