Supply and Demand Practice
Move the demand and supply curves and watch the equilibrium update. Then answer five exam-style questions on shifts, movements, and simultaneous changes.
One tile of the full supply and demand unit.
The course teaches supply and demand interactively — drag the graphs, practice with feedback, and spaced reviews bring it back before you forget. Free.
Interactive graph
Five practice questions
Pick an answer, then click Check answer to see the explanation.
Question 1 of 5
Consumer income rises and the good in question is normal. What happens at the new equilibrium?
Question 2 of 5
A freeze destroys half the orange crop. In the market for oranges, the new equilibrium has:
Question 3 of 5
"The price of coffee rose, so demand for coffee fell." Which word is being used incorrectly?
Question 4 of 5
Demand increases and supply increases at the same time, by roughly similar amounts. What is certain about the new equilibrium?
Question 5 of 5
Which of the following causes a movement along the demand curve (not a shift)?
What the course adds
Beyond this one page
The supply-and-demand unit has dozens of practice questions covering shifts vs. movements, simultaneous shifts, and equilibrium logic. Each session pulls from your weak spots — not the same five questions every time.
Spaced reviews
FSRS brings every concept back right before you'd forget. ~50% better retention than re-reading.
Per-concept mastery
Performance Factor Analysis tracks each sub-skill separately — you see which version of the idea is still wobbly.
Diagnostic placement
A short test skips you past what you already know. No re-learning the basics.
For instructors
Assign this to your class
Free, no account needed for students. Paste either snippet into Canvas, Moodle, Blackboard, Google Classroom, or your slide deck.
Sends students to the full page with the worked example and related lessons.
Inlines just the interactive widget in your LMS — no nav, no footer, no signup wall.
Want 50+ more problems with instant feedback?
The full Econ Academy supply-and-demand unit includes adaptive practice, spaced repetition, and mastery tracking so you stop forgetting what you just learned.