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Concise notes, key facts, worked examples and common mistakes.
International · A Level ·
A course-aware revision pathway with source metadata, topic map, paper/test structure, approved original practice, flashcards, AI tutor handoff and Battle Mode connection. This route is labelled Fully covered after passing the StudyVector depth gate.
Concise notes, key facts, worked examples and common mistakes.
Original questions mapped to topic, subtopic, skill and provider.
Active recall decks for formulas, facts, vocabulary and practicals.
Energy earned only from real revision progress and mistake repair.
14
Top-level route areas visible before signup.
28
Smaller learning blocks for repair and review.
28
Practice targets used by diagnostics and tutor handoff.
28
Success criteria tied to real answers, not passive reading.
This plan uses your course route, target date and confidence. It is a starter preview until the student saves the course in onboarding.
Night-before review: StudyVector starts with the highest-signal topic before widening the plan.
25 min · 10 energyflashcardsSpaced recall keeps today's work from fading before the next session.
9 min · 4 energyexam modeTimed practice turns understanding into exam/test readiness.
18 min · 12 energyai tutorTutor mode uses course-aware language and should guide, not shortcut, the answer.
8 min · 3 energyIB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
When the price of a good rises from $10 to $12, quantity demanded falls from 100 to 80 units. Calculate the price elasticity of demand and state whether demand is elastic or inelastic.
Source type: original · Review status: approved
StudyVector is independent and is not affiliated with or endorsed by exam boards unless explicitly stated.
Last checked 2026-04-29. Internal original mapping; not copied from paid platforms or official papers.
These previews come from the first-party course map and approved question registry. Fully covered means the public route has topic depth, skills, objectives, worked examples and mistake repair attached before students enter full practice.
Scarcity, choice and opportunity cost
What to know
Common mistake
Writing a memorised definition without applying it to the scenario.
Worked example
A Foundations of Economics question gives data and asks for evaluation. What should the final paragraph do?
The nine central economic concepts
What to know
Common mistake
Writing a memorised definition without applying it to the scenario.
Worked example
A Foundations of Economics question gives data and asks for evaluation. What should the final paragraph do?
Positive versus normative economics
What to know
Common mistake
Writing a memorised definition without applying it to the scenario.
Worked example
A Economic Methodology and Models question gives data and asks for evaluation. What should the final paragraph do?
1. What skill does the approved sample question test?
Scarcity, choice and opportunity cost
% change in quantity = (80 − 100)/100 = −20%. % change in price = (12 − 10)/10 = +20%. PED = −20% ÷ +20% = −1.0. The magnitude is exactly 1, so demand is unit (unitary) elastic at this point.
2. What mistake should you watch for in Scarcity, choice and opportunity cost?
Writing a memorised definition without applying it to the scenario.
StudyVector stores common mistake patterns so the next attempt can repair the specific error rather than restart the whole course.
3. What should happen after a missed point?
Review the explanation, name the mistake, then answer a similar question while the correction is fresh.
The page feeds the same loop as practice: attempt, feedback, repair, and return.
International · A Level ·
A course-aware revision pathway with source metadata, topic map, paper/test structure, approved original practice, flashcards, AI tutor handoff and Battle Mode connection. This route is labelled Fully covered after passing the StudyVector depth gate.
Concise notes, key facts, worked examples and common mistakes.
Original questions mapped to topic, subtopic, skill and provider.
Active recall decks for formulas, facts, vocabulary and practicals.
Energy earned only from real revision progress and mistake repair.
14
Top-level route areas visible before signup.
28
Smaller learning blocks for repair and review.
28
Practice targets used by diagnostics and tutor handoff.
28
Success criteria tied to real answers, not passive reading.
This plan uses your course route, target date and confidence. It is a starter preview until the student saves the course in onboarding.
Night-before review: StudyVector starts with the highest-signal topic before widening the plan.
25 min · 10 energyflashcardsSpaced recall keeps today's work from fading before the next session.
9 min · 4 energyexam modeTimed practice turns understanding into exam/test readiness.
18 min · 12 energyai tutorTutor mode uses course-aware language and should guide, not shortcut, the answer.
8 min · 3 energyIB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
IB Economics
When the price of a good rises from $10 to $12, quantity demanded falls from 100 to 80 units. Calculate the price elasticity of demand and state whether demand is elastic or inelastic.
Source type: original · Review status: approved
StudyVector is independent and is not affiliated with or endorsed by exam boards unless explicitly stated.
Last checked 2026-04-29. Internal original mapping; not copied from paid platforms or official papers.
These previews come from the first-party course map and approved question registry. Fully covered means the public route has topic depth, skills, objectives, worked examples and mistake repair attached before students enter full practice.
Scarcity, choice and opportunity cost
What to know
Common mistake
Writing a memorised definition without applying it to the scenario.
Worked example
A Foundations of Economics question gives data and asks for evaluation. What should the final paragraph do?
The nine central economic concepts
What to know
Common mistake
Writing a memorised definition without applying it to the scenario.
Worked example
A Foundations of Economics question gives data and asks for evaluation. What should the final paragraph do?
Positive versus normative economics
What to know
Common mistake
Writing a memorised definition without applying it to the scenario.
Worked example
A Economic Methodology and Models question gives data and asks for evaluation. What should the final paragraph do?
1. What skill does the approved sample question test?
Scarcity, choice and opportunity cost
% change in quantity = (80 − 100)/100 = −20%. % change in price = (12 − 10)/10 = +20%. PED = −20% ÷ +20% = −1.0. The magnitude is exactly 1, so demand is unit (unitary) elastic at this point.
2. What mistake should you watch for in Scarcity, choice and opportunity cost?
Writing a memorised definition without applying it to the scenario.
StudyVector stores common mistake patterns so the next attempt can repair the specific error rather than restart the whole course.
3. What should happen after a missed point?
Review the explanation, name the mistake, then answer a similar question while the correction is fresh.
The page feeds the same loop as practice: attempt, feedback, repair, and return.