C. Healthy Living · Healthy Living: Choices, Connections and Well-Being

Risk Radar: Health and Safety Risks in Your Physical and Personal Environment

C3.2 1.1 1.5About 65 minutes

Learning goals

I can identify health and safety risks in my physical and personal environment.
I can describe practices and behaviours that reduce my exposure, and other people's exposure, to these risks.
I can think in advance about the consequences of my actions and get reliable information.
I can promote safety practices to others in a respectful way.

Words to know

hazard
Something that could cause harm (e.g. ice, a busy road, a loud speaker).

risk
The chance that a hazard will actually cause harm, which depends on what you do.

exposure
How much, how often and how long you come into contact with a hazard.

infectious disease
An illness caused by germs (viruses, bacteria) that can spread between people.

decibel (dB)
The unit used to measure how loud a sound is.

Lyme disease
An infection that can spread through the bite of an infected blacklegged tick, found in parts of Ontario.

Most injuries are predictable, which means preventable

A cyclist with earbuds who doesn't hear a car. A tobogganer without a helmet. A teen with a fever who goes to the party anyway. In each case, the hazard was there, but the risk depended on choices. Grade 10s have more independence than ever (biking to work, going out with friends, outdoor sports), so this is the year to build your own risk radar.

The Grade 10 curriculum asks you to demonstrate an understanding of health and safety risks in their physical and personal environment, and describe practices and behaviours that can be promoted to minimize the exposure of themselves and others to these risks (e.g., thinking in advance of the consequences of actions; getting reliable information; hand washing; staying hydrated; road safety rules while biking and walking; avoiding distractions such as headphones; safe listening volumes; insect repellent; helmets for skiing, snowboarding and tobogganing) (C3.2).

Hazard, risk, exposure

A hazard is the thing that can hurt you. Risk is the chance it actually does. Exposure is how much contact you have. You can't remove every hazard (winter will always be icy!), but you can lower risk by changing exposure: wearing a helmet, turning the volume down, washing your hands.

Thinking in advance is the master skill: before you act, ask, "What could go wrong, how likely is it, and what would make it safer?"

Eight common risks in a Canadian teen's environment, each with a simple way to lower it.

Common risks and how to lower them

Infectious diseases: wash hands with soap and water for at least 20 seconds (or use hand sanitizer), cough or sneeze into your elbow, stay home when sick, keep vaccinations up to date, and don't share water bottles or lip products.
Heat and dehydration: drink water before, during and after activity, especially on hot, humid days; rest in the shade; know the warning signs of heat illness (headache, dizziness, nausea, confusion).
Road safety: cross at crosswalks and signals, make eye contact with drivers, wear bright or reflective clothing at night, and ride with traffic in bike lanes when you can. In Ontario, cyclists under 18 must wear an approved bike helmet.
Distractions: headphones and phones reduce what you see and hear. Keep at least one ear free (or take earbuds out) and phone away when walking near traffic or cycling.
Hearing: loud sound damages the tiny hair cells in the inner ear, and that damage is permanent. Keep personal audio at a moderate volume, take listening breaks, and wear earplugs at concerts and loud events.
Insects: mosquitoes can carry West Nile virus, and blacklegged ticks in parts of Ontario can carry Lyme disease. Use insect repellent (with DEET or icaridin, following the label), wear long sleeves in long grass and woods, and check for ticks after being outdoors.
Winter sports: wear a helmet for skiing, snowboarding, skating and tobogganing; choose hills away from roads, trees and water; go on ice only once adults say the ice is safe.
Sun: when the UV index is 3 or higher, use sunscreen (SPF 30 or more), a hat and sunglasses, and seek shade, even on cloudy days.

Sound levels are approximate. The longer and louder the exposure, the higher the risk of permanent hearing damage.

Get reliable information

Reliable safety information comes from Public Health Ontario, your local public health unit, Health Canada, Parachute (Canada's injury prevention charity), and the Ontario Ministry of Transportation. Check the date and source, just like nutrition claims.

Worked example

Let's assess a weekend plan

On a hot July Saturday, Kai (15) plans to bike 8 km to a friend's cottage road, wearing earbuds, then go hiking in tall grass and to an outdoor concert at night. Use the risk radar to make the plan safer.

Road: wear a helmet (required under 18 in Ontario), ride with traffic, use bike lanes or quiet roads, bright clothing.
Distraction: no earbuds while riding; phone in his bag.
Heat: start early or late in the day, bring a full water bottle, take breaks in the shade.
Sun: sunscreen SPF 30+, hat for the hike.
Insects: repellent, long pants in tall grass, a tick check afterward.
Hearing: foam earplugs at the concert; take breaks away from the speakers.
Think ahead: tell a parent the route and return time; plan a ride home after dark rather than biking unlit roads.

Kai can still do everything he planned. Small precautions at each step lower his exposure to every risk.

Worked example

Let's promote a safe practice without lecturing

Your friend group always rides bikes to the skate park, and most don't wear helmets because "they look dumb." How can you promote safety respectfully?

Lead by example: wear yours every time.
Use facts, not fear: "Helmets lower the risk of serious head injury, and in Ontario it's the law under 18."
Address the real barrier (looks): suggest helmets that friends like the style of, or stickers to customize them.
Make it normal: "Helmets on" as a group habit before leaving.

Promoting safety works best with example, facts and solving the real barrier, not shaming.

Just for fun

Public health advice is to scrub your hands for at least 20 seconds, which is about how long it takes to hum "Happy Birthday" twice. Your hands get a party; germs don't get an invitation.

Hands-on activity

Home and neighbourhood risk walk

You need: a notebook and a grown-up or friend to walk with.

Walk your usual route to school, work or a park. Note three hazards (busy crossing, no sidewalk, broken lighting, icy steps).
At home, check: Is there a first aid kit? Insect repellent and sunscreen? Working smoke and carbon monoxide alarms (ask a grown-up to test them)?
For each hazard, write one practice that lowers the risk for you and one way to promote it to others (a family reminder, a note to the city about broken lighting).

Safety: stay on sidewalks and obey signals during the walk; a grown-up should handle testing alarms.

Your turn

What is the difference between a hazard and a risk?

How long should you wash your hands with soap and water?

Who must wear a bike helmet in Ontario?

Why is hearing damage from loud sound so serious?

Name two ways to lower the risk of Lyme disease.

Name two signs of heat illness.

At what UV index should you use sun protection?

More practice: warm-up

Name one way to stop germs spreading when you cough.

What should you do with earbuds when cycling?

What unit measures loudness?

What should you wear when tobogganing?

What SPF is recommended?

More practice: on your own

Explain how "thinking in advance" lowers risk, with an example.

Why might a teen be more exposed to some risks than a younger child?

Explain why staying home when sick protects others, not just you.

A friend says, "Ticks aren't a thing in Ontario." Respond with facts.

Pick one risk and design a poster message (one sentence plus one fact) to promote safety to Grade 9 students.

Challenge

Explain how exposure (how loud, how often, how long) affects hearing risk, and give two ways to lower each factor.

Your school is planning a winter carnival with tobogganing and a pond skate. Create a safety plan that covers at least four risks.

Why is "promoting" safety to others part of the expectation, not just following it yourself? Give a real example.

Check your understanding

Quiz

Risk depends mostly on...

In Ontario, bike helmets are required by law for cyclists...

Which lowers your exposure to Lyme disease?

Hand washing should last at least...

Which is the safest choice when walking near traffic?

Hearing damage from loud noise is...

For parents and teachers

Big idea: C3.2: demonstrate an understanding of health and safety risks in their physical and personal environment, and describe practices and behaviours that can be promoted to minimize the exposure of themselves and others to these risks. Students practise self-monitoring (Living Skill 1.1) and thinking ahead (1.5).

How to help at home: talk through plans before outings (route, ride home, what to bring); keep sunscreen, insect repellent, a first aid kit and helmets handy; test smoke and carbon monoxide alarms together. Supervise the home safety check.

Common difficulties: teens may feel "it won't happen to me". Focus on simple, normal habits rather than scary stories.

Facts used: Ontario Highway Traffic Act bicycle helmet requirement for riders under 18; public health hand-washing guidance (at least 20 seconds); sun protection when the UV index is 3 or higher (Environment and Climate Change Canada / Health Canada); Lyme disease and blacklegged ticks in parts of Ontario (Public Health Ontario). Decibel values are approximate typical levels.