Investing Foundations
Locked6 lessons remaining to earn this badge.
Every good investor starts here. This level explains what investing actually is, why money left idle quietly loses purchasing power, and how time does work that no amount of activity can replace. Nothing in this level requires you to pick an investment.
What you'll learn
- Tell the difference between money that should be saved and money that can be invested
- Explain how ownership of productive assets can build wealth over long periods
- Describe compounding: why early money has the most time to grow, and why later years can add larger dollar amounts
- Read the main investment account types in plain English
- Match how long money will be left alone to how much volatility it can tolerate
- 1.1
Saving vs. Investing
Saving protects money you need soon; investing pursues growth with money you can leave alone.
5 min - 1.2
How Investing Builds Wealth
Investing is how people fund long-term goals and participate in economic growth.
5 min - 1.3
The Power of Compounding
Compounding is growth earned on previous growth, and it needs time far more than it needs cleverness.
6 min - 1.4
Inflation and Purchasing Power
Money is a tool for exchange and storage of value, and its purchasing power changes over time.
6 min - 1.5
Investment Accounts
The account wrapper decides your tax treatment and your access rules.
6 min - 1.6
Time Horizon and Risk
Higher potential return generally requires accepting greater uncertainty, and risk has many separate forms.
7 min
Optional supplemental lessons
Extra reading for this level. Optional — they don't count toward this badge or the certificate.
- The Emergency Fund · after Lesson 1.1 · 3 min
Set aside near-term cash before investing money you may need soon.
- Cash, Bonds and Stability · after Lesson 1.1 · 5 min
How cash and bonds differ from stocks in risk and purpose.
- What Is a Brokerage Account? · after Lesson 1.5 · 6 min
What a brokerage account is and how it holds your investments.
- How Buying a Stock Actually Works · after Lesson 1.5 · 6 min
The mechanics of placing an order, step by step.
- Your First Investment Checklist · after Lesson 1.6 · 4 min
A checklist to review before a first investment.
Worked case · Hypothetical example
Near-term cash vs a long-term goal
Skill: Sorting money by when it's needed, and measuring purchasing power
Hypothetical: Sam has $15,000 in savings. Rent deposit for a move in 6 months: $3,000. Car repair fund: $2,000. The rest is for a goal 20 years away.
Prices are assumed to rise 3% a year (an assumption, not a forecast).
| Savings | $15,000 |
|---|---|
| Needed within 1 year | $3,000 + $2,000 |
| Assumed inflation | 3% a year |
Worked through
- Sort by horizon: $5,000 is needed within a year → stable, easy-to-reach cash. $10,000 has a 20-year horizon.
- Purchasing power of idle cash: $10,000 left at 0% for 10 years buys what $10,000 ÷ 1.03¹⁰ ≈ $7,441 buys today.
- Read the result: Cash didn't fall in dollars but lost about 26% of its buying power. That is the risk of holding long-term money only in cash.
Limitation: Inflation varies year to year; real accounts earn some interest and may be taxed.
Your turn
Check yourself against the rubric
- Each need is placed by when it is needed, not by how much it is
- Answer ≈ $5,000 ÷ 1.025⁵ ≈ $4,419, with the working shown
- States that the figure is purchasing power, not a loss of dollars
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