South 고등학교 3학년 Technology and Home Economics

Chapters: 5

1. Human development and family

Foundations of a healthy family · Choosing a partner · Becoming parents · Pregnancy and birth · Child development and care · Family culture

Family Ethics: Living Well Together as a Family – A family is a group of people who live with, care for and depend on each other. Families come in many shapes: nuclear, joint, single-parent, blended, couples, grandparent-led. Family ethics means the fair and kind ways members treat each other: equal respect, shared work, honest talk, and care for children and elders. A healthy couple relationship rests on free choice, trust and equality. Every family meets problems; good talk, fair sharing and outside help get it through.
Parenting Styles and Parenthood – Parenting is how adults care for, guide and teach a child. Two things matter most: warmth (love and listening) and rules (clear limits). Warm parents with fair rules are called authoritative, and their children usually do best. Becoming a parent changes life, and parents must also look after themselves.
Child Development: Stages, Milestones and Care – Growth is a child getting bigger. Development is a child getting more skilled: in body, thinking, language and feelings. It happens in an order, through stages (infant, toddler, early childhood, middle childhood, adolescence), with milestones that most children reach at about the same age. Good nutrition, play, love, safety and responsive adults help every area grow.

2. Home life and safety

Korean food culture · Hanbok · Hanok · Safety across the lifespan · Unexpected family problems

Clothing: Why We Wear It, What It Is Made Of and How to Choose It – Clothes protect us from sun, rain and cold, give modesty, show identity (uniforms, traditional dress such as the sari or hanbok) and let us express ourselves. They are made of fibres: natural ones from plants (cotton, linen) and animals (wool, silk), and synthetic ones from petroleum (polyester, nylon). Fibres are spun into yarn and made into fabric by weaving (over-under) or knitting (loops). Design uses line, colour, shape and texture. A smart buyer plans a wardrobe, checks fit, quality and the care label, compares shops, works out cost per wear, and chooses sustainable options: buy less, mend, swap and recycle.
Housing: How Homes Meet Our Needs and Change Over Time – Housing is the place where people live. A good home gives shelter, safety, privacy, health and a sense of belonging. Houses are shaped by climate, local materials, culture, money and the way families live. Inside, living space is arranged into private, shared and service zones. A healthy home has fresh air, daylight, low damp and is kept clean and organised. Housing changes as society changes: from traditional houses such as courtyard homes to city apartments and future green, smart and shared homes. Fair access to decent, affordable housing is an important social issue.
Safety Education: Staying Safe at Home, on the Road and with People – Safety means spotting hazards early and acting before harm happens. Risk = likelihood × harm. Keep exits clear and use stairs in a fire, follow traffic rules and wear a helmet or seat belt, wash hands and use medicine correctly, and in any unsafe situation with a person: say NO, GO away and TELL a trusted adult.
Family Ethics: Living Well Together as a Family – A family is a group of people who live with, care for and depend on each other. Families come in many shapes: nuclear, joint, single-parent, blended, couples, grandparent-led. Family ethics means the fair and kind ways members treat each other: equal respect, shared work, honest talk, and care for children and elders. A healthy couple relationship rests on free choice, trust and equality. Every family meets problems; good talk, fair sharing and outside help get it through.

3. Resource management and independence

Welfare across life · Economic independence · Consumption and society · Family life planning · Old age

The Welfare State and Social Security – A welfare state is a state that protects people against the big risks of life: illness, job loss, old age, disability and poverty. It does this with a safety net made of three parts. Social insurance is paid from contributions taken from wages. Social assistance is paid from taxes to people in need. Public services such as schools and hospitals are open to everyone. Countries mix these parts in different ways: liberal (low tax, small help), conservative (help linked to your job) and social-democratic (high tax, help for all). Today welfare states face ageing populations, rising costs, global competition and many informal workers.
Smart Ways to Manage Your Finances – Inflation makes prices rise, so the same money buys less. Money kept in a bank earns interest: simple interest is paid only on the original amount, while compound interest also earns interest on earlier interest, so it grows faster over time. A budget plans income into needs, wants and savings. Savings are kept safe; investments can grow but carry risk, and higher possible returns mean higher risk. Insurance shares risk among many people. Income tax is paid on income above a limit, at rates that rise with income.
Ethical Consumption – Ethical consumption means choosing what to buy while thinking about the people who made it and the nature it uses. Fair trade pays workers a fair share, and buying less, second-hand or repaired things cuts the footprint. Many small choices change what shops sell.
Life Planning: Designing a Happy, Independent Life – Life planning means thinking ahead about the kind of life you want and how to get there. Life passes through stages (childhood, teenage years, young adulthood, adulthood, older age), each with its own tasks. Along the way come life events, some shared by most people and some chosen. You use five resources: time, money, health, people and skills. A good plan sets short, medium and long-term goals, prepares for risks with savings, insurance and public welfare, and is reviewed as life changes. Being an independent citizen means taking responsibility for yourself and others. In ageing societies with few births, planning for later life matters more than ever. Happiness comes from wellbeing in body, mind, relationships and purpose, not from money alone.
Population Ageing – Population ageing means older people form a growing share of a population. It has two drivers: fewer births (total fertility rate below about 2.1) and longer lives. Fewer workers per older person strains pensions, health care and the labour supply, while schools need fewer places. Societies respond with support for families, later and flexible retirement, pension and care reforms, technology, lifelong learning and sometimes immigration.

4. Technology systems

Improved technologies · Advanced manufacturing · Advanced construction · Biotechnology and food · New transport · Advanced ICT · Problems of high tech

Science, Technology and Society: How Discoveries Change Our Lives – Science finds out how nature works; technology uses that knowledge to make tools and solve problems. Society shapes science too, by asking questions, paying for research and making rules. Big changes such as the printing press, the steam engine, electricity, vaccines and the internet changed how people work, live and think. Every technology has benefits and risks. To decide wisely we look at evidence, weigh benefits against risks, ask who gains and who loses, think about ethics and the future, and use safety rules.
Manufacturing Technology: From Raw Material to Finished Product – Manufacturing turns raw materials into useful products. Primary industry makes standard stock; secondary industry makes finished goods. Material is converted by forming, separating, combining and conditioning. Good parts need the right material, a clear technical drawing and process plan, careful measurement against tolerances, and machines run by control systems, all done safely.
Construction Technology: How Buildings Are Planned and Built – Construction technology is the knowledge of how to plan, build, finish and look after structures. A building has a foundation, a frame (columns and beams), walls and a roof. Every load (dead load of the building itself, live load of people and furniture, wind and snow) must travel down a clear load path to the soil. Concrete is strong in compression, steel in tension, so reinforced concrete uses both. Builders work from scale drawings (plan, elevation, section), use maths to find areas and volumes, follow building codes for safety, and fit systems for water, power and air.
Transport Technology: Moving People and Goods – Transport technology moves people and goods from place to place. Every transport system has five parts: a vehicle, a way (road, rail, sea lane, air route), terminals (stations, ports, airports), a power source and a control system. Land vehicles push on the ground using friction. Ships float because water pushes up (buoyancy). Planes fly when lift beats weight and thrust beats drag. Rockets push gas backwards and are pushed forwards. Engines turn fuel or electricity into motion; electric motors waste less energy. Safety depends on stopping distance = thinking distance + braking distance. Future transport aims to be cleaner, safer and smarter: electric and hydrogen vehicles, maglev trains, drones and self-driving cars.
The Design Process: From Problem to Product – The design process is a loop of steps designers use to solve a real problem for real people: investigate the need, define it in a brief and a measurable specification, generate many ideas, build a prototype, then test and evaluate it against the specification. Whatever fails sends you back round the loop. This repeating is called iteration, and it is how almost every product, app, building and artwork is improved.

5. Using technology

Future technology · Industrial safety · Road safety · Creative engineering design · Invention for problem solving · Patents in R&D · Invention and standards experience · Assessing technology · Appropriate technology

Science, Technology and Society: How Discoveries Change Our Lives – Science finds out how nature works; technology uses that knowledge to make tools and solve problems. Society shapes science too, by asking questions, paying for research and making rules. Big changes such as the printing press, the steam engine, electricity, vaccines and the internet changed how people work, live and think. Every technology has benefits and risks. To decide wisely we look at evidence, weigh benefits against risks, ask who gains and who loses, think about ethics and the future, and use safety rules.
Occupational Health: How Work Affects Health and How to Protect Workers – Occupational health is about keeping workers healthy and safe. Workplaces can have physical, chemical, biological, ergonomic and psychosocial hazards. Long exposure can cause occupational diseases such as silicosis, noise-induced hearing loss and back injuries. We prevent harm by improving the working environment (using the hierarchy of controls) and by managing workers' health with check-ups, limits on exposure and training.
Safety Education: Staying Safe at Home, on the Road and with People – Safety means spotting hazards early and acting before harm happens. Risk = likelihood × harm. Keep exits clear and use stairs in a fire, follow traffic rules and wear a helmet or seat belt, wash hands and use medicine correctly, and in any unsafe situation with a person: say NO, GO away and TELL a trusted adult.
The Design Process: From Problem to Product – The design process is a loop of steps designers use to solve a real problem for real people: investigate the need, define it in a brief and a measurable specification, generate many ideas, build a prototype, then test and evaluate it against the specification. Whatever fails sends you back round the loop. This repeating is called iteration, and it is how almost every product, app, building and artwork is improved.
Patents: Protecting an Invention – A patent is a right given by the government to an inventor. For about 20 years, others cannot make, use or sell the invention without permission. In return, the inventor must explain the invention clearly to the public. To get a patent, an invention must be new (novel), not obvious (inventive step) and useful in industry. Patents are one kind of intellectual property (IP), along with designs, trademarks and copyright. A patent application has a specification: title, background, description, drawings, claims and abstract. The claims are the fence that marks exactly what is protected. Filing steps: search prior art, write and file, publication, examination, grant, then pay yearly fees. A patent works only in the countries where it is granted. When employees invent at work, the employee is named as inventor, but the employer usually owns the right and should give fair reward.
National and International Standards in Design – A standard is an agreed document that sets sizes, quality, safety or test methods so products fit, work safely and can be traded. ISO and IEC write world standards; regional (EN) and national bodies such as BIS, BSI, DIN, UNE and ANSI adopt them. Marks like CE, ISI and the Kitemark show conformity. ISO 216 A-series paper starts at A0 = 1 m², halves at each size and keeps a 1 : √2 ratio. Drawing standards fix line types, scales, dimensions, title blocks and how to fold sheets to A4.
Appropriate Technology – Appropriate technology is a tool or method that fits the people, place and money it is used for. It is usually simple, affordable, easy to repair locally and kind to the environment. The best technology is not always the newest or biggest. We choose by checking cost, skills, repair, energy, environment and how much is needed.