Our Body and Health

Overview

Our Body and Health is a foundational topic in Environmental Studies for JTET Paper I, designed to help primary-level teachers understand how to teach children about their own bodies, sense organs, personal hygiene, and common diseases. This topic connects biological concepts with everyday life skills that children must develop early.

For JTET, expect questions on identifying body parts and their functions, the five sense organs and their roles, hygiene practices, and prevention of common childhood diseases. Questions often test practical application—such as matching sense organs to functions or identifying correct hygiene habits—rather than deep biological detail. Understanding this topic also helps teachers address health education in rural and tribal areas of Jharkhand, where awareness about hygiene and disease prevention remains crucial.

Mastery requires knowing the basic structure-function relationships of body parts, the sensory system, hygiene practices appropriate for young children, and common diseases with their causes and prevention methods.

Key Concepts

• **External body parts** include head, neck, trunk, arms, legs, hands, and feet. Each has specific functions—hands for grasping, legs for walking, head for thinking and sensing.

• **Internal organs** perform vital functions: heart pumps blood, lungs help breathing, stomach digests food, brain controls all body activities, kidneys filter waste from blood.

• **Five sense organs** are eyes (sight), ears (hearing), nose (smell), tongue (taste), and skin (touch). Each sense organ has a specific receptor that sends signals to the brain.

• **Personal hygiene** means keeping the body clean to prevent disease. It includes bathing, brushing teeth, washing hands, cutting nails, and wearing clean clothes.

• **Communicable diseases** spread from person to person through air, water, food, or contact. Examples: cold, flu, diarrhoea, typhoid, malaria.

• **Non-communicable diseases** do not spread from person to person. Examples: diabetes, asthma, heart disease.

• **Vaccination (immunization)** protects children from serious diseases like polio, measles, tuberculosis, and hepatitis.

• **Balanced diet** provides all nutrients needed for growth and health—carbohydrates, proteins, fats, vitamins, minerals, and water.

Formulas / Key Facts

| Sense Organ | Sense | Function | |-------------|-------|----------| | Eyes | Sight | See objects, colours, shapes | | Ears | Hearing | Hear sounds | | Nose | Smell | Detect odours | | Tongue | Taste | Identify sweet, sour, salty, bitter, umami | | Skin | Touch | Feel temperature, pressure, pain |