LET Elementary Social Sciences — Economics & TaxationRevision Notes
Condensed revision notes for Economics & Taxation, built for the final weeks before the LET Elementary 2026. These are the distilled key points you need when there is no time left for full study notes — just the concepts, formulas, and traps Professional Regulation Commission (PRC) tests.
Exam context
For the Licensure Examination for Professional Teachers — Elementary, Professional Regulation Commission (PRC) tests Social Sciences under a "Core" label, with Economics & Taxation in the 4th slot across 8 chapters. LET Elementary candidates must clear the Weighted average of 75% with no grade below 50% cut on the 2026 paper, which draws about a meaningful share of Social Sciences questions. Date to watch: Bi-annual.
Economics & Taxation - Revision Notes
Economics and taxation concepts are essential for elementary teachers as they appear in Araling Panlipunan lessons and help develop pupils' financial literacy and civic awareness. As future educators under RA 7836, you must understand these concepts to teach responsible citizenship and economic awareness to Grades 1-6 pupils in the K-12 Basic Education Curriculum.
Sections
Formulas
Example
If a student chooses tutoring over playing (earning ₱100), opportunity cost is ₱100 worth of enjoyment from play
Formula
Opportunity Cost = Value of Next Best Alternative
Variables
Value measured in pesos, time, or satisfaction foregone
Application
Decision-making in resource allocation
Exam Tips
- Practice identifying opportunity costs in daily Filipino scenarios like choosing between jeepney or tricycle
- Remember the four factors of production using the acronym LLCE (Land, Labor, Capital, Entrepreneurship)
- Connect economic concepts to Philippine contexts like sari-sari stores and cooperative businesses
Key Points
- Economics is the study of how individuals, firms, and governments make choices about using scarce resources
- Microeconomics focuses on individual decisions while macroeconomics examines whole-economy behavior
- Scarcity forces choices, creating opportunity cost - the value of the next-best alternative given up
- Four factors of production: Land (natural resources), Labor (human work), Capital (machines/tools), Entrepreneurship (organizing/risk-taking)
- Each factor earns returns: rent, wages, interest, and profit respectively
Definitions
Term
Scarcity
Definition
The basic economic problem where unlimited wants exceed limited resources
Importance
Foundation concept for understanding all economic decisions and trade-offs
Term
Opportunity Cost
Definition
The value of the best alternative foregone when making a choice
Importance
Helps pupils understand the real cost of decisions beyond monetary price
Section Title
Fundamental Economic Concepts
Common Mistakes
- Confusing scarcity with poverty - scarcity affects all economic levels
- Thinking opportunity cost only applies to money - it includes time and other resources
- Misunderstanding that free goods still have opportunity costs in terms of alternatives
Exam Tips
- Use Philippine examples: jeepney routes (monopolistic competition), MERALCO (monopoly), rice farming (approaching perfect competition)
- Remember demand curve slopes down, supply curve slopes up
- Identify factors that shift demand: income, preferences, population, related goods, expectations
Key Points
- Philippines follows a mixed economic system combining market freedom with government regulation
- Traditional systems base decisions on customs, command systems rely on government control, market systems use prices and competition
- Supply and demand determine market prices - demand falls as price rises, supply rises as price rises
- Market equilibrium occurs where supply meets demand
- Four market structures: Perfect competition, Monopoly, Oligopoly, Monopolistic competition
Definitions
Term
Mixed Economy
Definition
Economic system combining private enterprise with government regulation and public services
Importance
Describes the Philippine economic model relevant to teaching civic responsibility
Term
Market Equilibrium
Definition
Point where quantity supplied equals quantity demanded at a specific price
Importance
Explains how prices are determined in free markets
Section Title
Economic Systems and Market Structures
Common Mistakes
- Assuming the Philippines is purely capitalist - it's a mixed economy with significant government involvement
- Confusing shifts in demand/supply with movements along the curve
- Not recognizing that most Philippine markets are monopolistic competition, not perfect competition
Formulas
Example
₱10,000 loan at 12% for 2 years = ₱10,000 × 0.12 × 2 = ₱2,400 interest
Formula
Simple Interest = Principal × Rate × Time
Variables
Principal (amount borrowed), Rate (annual percentage), Time (years)
Application
Calculating loan costs and savings growth
Exam Tips
- Memorize BSP's main functions: monetary policy, currency issuance, bank supervision
- Know the difference between cash, deposits, and electronic money forms
- Understand simple interest calculations for basic financial literacy concepts
Key Points
- Money serves four functions: medium of exchange, unit of account, store of value, standard of deferred payment
- Bangko Sentral ng Pilipinas (BSP) is the central bank regulating the financial system and issuing currency
- Philippine money includes cash (peso bills/coins), deposits, and electronic money (GCash, Maya)
- Banking system includes commercial banks, rural banks, cooperative banks, thrift banks, and microfinance institutions
- Interest rates represent the cost of borrowing and benefit of lending
Definitions
Term
Bangko Sentral ng Pilipinas (BSP)
Definition
The central bank of the Philippines responsible for monetary policy and financial system regulation
Importance
Key institution in Philippine economic governance that teachers should understand for civic education
Term
Microfinance
Definition
Financial services including small loans provided to low-income individuals or small businesses
Importance
Important for understanding Filipino livelihood programs and poverty alleviation efforts
Section Title
Money, Banking, and Financial Institutions
Common Mistakes
- Thinking BSP is just another commercial bank - it's the regulator of all banks
- Confusing electronic money with credit cards - e-money is prepaid, credit is borrowed
- Not recognizing that rural and cooperative banks serve specific sectors and areas
Formulas
Example
If Philippines GDP is ₱20 trillion and population is 110 million, GDP per capita = ₱181,818
Formula
GDP per capita = Total GDP ÷ Population
Variables
GDP (total economic output), Population (total number of people)
Application
Measuring average standard of living
Example
Rice price rose from ₱40 to ₱44 per kilo: (44-40)÷40×100% = 10% inflation
Formula
Inflation Rate = (New Price - Old Price) ÷ Old Price × 100%
Variables
New Price (current), Old Price (previous period)
Application
Measuring price level changes over time
Exam Tips
- Remember Philippines' main exports using acronym EGCT (Electronics, Garments, Coconut, Tropical fruits)
- Know that OFW remittances help balance the trade deficit
- Practice calculating simple inflation rates using price changes
Key Points
- Gross Domestic Product (GDP) measures total value of goods and services produced annually
- Inflation is the general rise in prices, reducing purchasing power over time
- Unemployment types: frictional (temporary), structural (skill mismatch), cyclical (economic downturn), seasonal (agriculture/tourism)
- Philippines has trade deficit - imports exceed exports
- Major exports: electronics/semiconductors, garments, coconut products, tropical fruits
- OFW remittances are major sources of foreign exchange
Definitions
Term
Gross Domestic Product (GDP)
Definition
Total monetary value of all finished goods and services produced within a country during a specific period
Importance
Key measure of economic performance and development level
Term
OFW Remittances
Definition
Money sent home by Overseas Filipino Workers to their families in the Philippines
Importance
Major source of foreign currency and significant contributor to Philippine economy
Section Title
Philippine Economic Indicators
Common Mistakes
- Confusing nominal GDP (current prices) with real GDP (inflation-adjusted)
- Thinking high GDP automatically means high quality of life - must consider population size
- Not understanding that seasonal unemployment in agriculture is normal, not necessarily problematic
Formulas
Example
₱1,000 purchase: VAT = ₱1,000 × 0.12 = ₱120; Total = ₱1,120
Formula
VAT = Net Price × 12%
Variables
Net Price (before tax), VAT rate (12% in Philippines)
Application
Calculating value-added tax on purchases
Exam Tips
- Remember VAT rate is 12% in the Philippines
- Know that taxes fund public services including DepEd schools and teacher salaries
- Understand the connection between taxation and civic responsibility as mandated in K-12 curriculum
Key Points
- Taxes are mandatory payments to government to fund public services including education
- Bureau of Internal Revenue (BIR) collects national taxes, Bureau of Customs (BOC) collects duties
- Local Government Units collect property and business taxes
- Major tax types: Income tax, VAT (12%), excise tax, property tax, documentary stamp tax
- Tax principles: fiscal adequacy, administrative feasibility, theoretical justice
- TRAIN Law (RA 10963) and CREATE Act modified Philippine tax structure
Definitions
Term
Value Added Tax (VAT)
Definition
12% tax imposed on the sale of goods and services in the Philippines
Importance
Major source of government revenue affecting all consumers
Term
Bureau of Internal Revenue (BIR)
Definition
Government agency responsible for collecting national internal taxes in the Philippines
Importance
Key institution in government revenue generation that funds public education
Section Title
Philippine Taxation System
Common Mistakes
- Thinking VAT is added to all goods - some are VAT-exempt like basic commodities
- Confusing BIR (national taxes) with LGU (local taxes) collection responsibilities
- Not understanding that teacher salaries come from tax revenues, making taxation personally relevant
Exam Tips
- Know specific strategies for teaching economics at each grade level within K-12 BEC
- Understand how economic education supports DepEd's values formation goals
- Connect economic concepts to civic duties as outlined in Araling Panlipunan curriculum
Key Points
- Use classroom economy systems where pupils earn 'class money' for tasks and responsibilities
- Connect to Filipino contexts: sari-sari stores, cooperative stores, tingi economy
- Teach budgeting through family planning exercises and school projects
- Integrate values: thrift, honesty in business, respect for labor, civic responsibility
- Use role-playing for market simulations and economic decision-making
- Connect taxation to public services pupils use daily like schools and roads
Definitions
Term
Financial Literacy
Definition
The ability to understand and effectively use financial skills including budgeting, saving, and investing
Importance
Essential 21st century skill mandated in K-12 curriculum for responsible citizenship
Term
Tingi Economy
Definition
Filipino practice of selling goods in very small quantities to make them affordable for low-income consumers
Importance
Uniquely Filipino economic concept that helps pupils understand local market adaptations
Section Title
Teaching Economics in Elementary Classrooms
Common Mistakes
- Making economics too abstract - always use concrete Filipino examples
- Focusing only on money concepts - include values like honesty and thrift
- Not connecting classroom activities to real-world economic citizenship responsibilities
Connections
- Economics concepts support Araling Panlipunan lessons on community, resources, and governance
- Taxation knowledge helps explain government services and civic responsibilities to pupils
- Financial literacy concepts promote responsible money management and entrepreneurship values
- Market understanding connects to Filipino cultural practices like sari-sari stores and cooperatives
- Economic indicators help pupils understand national development and progress
- Banking concepts support practical life skills and preparation for adult financial responsibilities
Exam Strategy
Focus on Philippine-specific examples and institutions (BSP, BIR, BOC, OFW remittances). Practice calculating VAT, simple interest, and inflation rates. Understand how economic concepts connect to elementary teaching responsibilities and K-12 curriculum goals. Memorize key government agencies and their functions. Connect economic principles to Filipino cultural contexts and classroom applications. Review how taxation funds public education and other services that directly impact teachers and pupils.
Quick Review Questions
What are the four functions of money?
These four functions distinguish money from other assets and explain why money is essential in modern economies like the Philippines.
What is the current VAT rate in the Philippines?
The Value Added Tax rate of 12% is imposed on most goods and services, making it a significant source of government revenue for public services.
Which government agencies collect taxes in the Philippines?
Different agencies have specific responsibilities: BIR for income and VAT, BOC for import duties, LGUs for property and business taxes.
What type of economic system does the Philippines have?
The Philippines combines market mechanisms with government regulation and public services, typical of modern developing economies.
What is opportunity cost?
This fundamental economic concept helps explain the real cost of decisions, whether involving money, time, or other resources.
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