Knowledge of health education content and concepts
This domain tests the health content knowledge a K–12 health educator must teach and model: the ten content areas, health literacy, wellness, prevention levels, and core facts in nutrition, activity, safety, substance use, and sexual health. Questions often ask you to classify a program, interpret a guideline, or choose the most accurate content statement.
Content areas and health literacy
The traditional content areas are alcohol and other drugs; injury prevention and safety; mental and emotional health; nutrition; physical activity; prevention and control of disease; human sexuality; environmental health; personal and consumer health; and community health. Health literacy is the capacity to obtain, process, understand, and use health information and services to make decisions-not just recall facts. Wellness is an active, multidimensional process (physical, emotional, social, intellectual, occupational, spiritual, environmental); health is a state.
Prevention levels and disease concepts
Primary prevention stops disease before onset (immunization, helmet use, fluoride, tobacco refusal). Secondary prevention detects early (screening, blood pressure checks, STI testing). Tertiary prevention limits disability or rehabilitates (cardiac rehab). Incidence = new cases; prevalence = all existing cases. Communicable disease spreads person-to-person or via vectors; chronic disease is long duration and often preventable.
Core content anchors
Dietary Guidelines: a 2,000-calorie pattern emphasizes 2 cups fruit, 2.5 cups vegetables, whole grains, lean protein, and limited added sugar and sodium. Youth 6–17 need 60 minutes of moderate-to-vigorous activity daily; adults need 150 minutes moderate plus muscle strengthening twice weekly. Adolescents need 8–10 hours sleep; school-age children 9–12. Adult CPR: 100–120 compressions/min, at least 2 inches deep, 30:2 until an AED arrives.
Worked example: A district adds annual blood-pressure screening and referral for staff. The prompt asks the prevention level. Screening finds existing, asymptomatic risk, so it is secondary prevention; teaching sodium reduction is primary. Reasoning: ask whether the action prevents onset (primary), finds disease early (secondary), or reduces complications (tertiary).
Traps: treating wellness as the absence of disease; calling screening primary prevention; confusing incidence with prevalence; assuming health education is only nutrition; accepting 'more is better' for supplements without evidence.