Trauma happens when someone goes through a very scary or harmful event, or a series of events, that affects them deeply and causes long-term problems. Everyone copes with trauma in their own way. When something traumatic happens, it might make someone feel scared, disconnected, or overwhelmed. This can affect how they feel, their ability to handle daily life, and their relationships. Trauma can also impact how a child’s brain develops, making it harder for them to control their emotions, remember things, and make decisions. It’s like a storm leaving a lasting mark. Trauma can come from:
Big events like natural disasters, serious accidents, or violence.
Personal loss such as losing a loved one, like a family member or pet.
Family issues like divorce or ongoing fights at home.
Bullying or abuse such as physical, emotional, or verbal harm from others.
Systemic issues like discrimination, poverty and racism.
It’s important to distinguish between traumatic events and trauma. A traumatic event is something that happens - a car accident, natural disaster, abuse, or witnessing violence. Trauma is the lasting impact of that event on a person's mind and body. Not everyone who experiences a traumatic event will develop trauma, and trauma responses can vary greatly between individuals.
The term "trauma" is often overused in everyday language. When people say "that was traumatic" about a difficult day or challenging student behavior, this minimizes the real impact of actual trauma on developing brains and nervous systems. True trauma involves a significant disruption to a person's sense of safety and ability to cope.
Learning to handle challenges is important for growing up healthy. When we face stress, our body gets ready by making our heart beat faster and increasing stress hormones. There are three types of stress responses:
Positive Stress: This is a normal reaction to small challenges, like starting a new school or getting a needle. It helps kids build resilience and is part of growing up.
Tolerable Stress: This happens during serious but temporary difficulties, like losing someone or experiencing a natural disaster. With supportive adults, kids can recover from this without lasting harm.
Toxic Stress: This occurs when a child faces ongoing, intense problems without enough support. It can seriously affect their development and health, both now and in the future. Long-term toxic stress can lead to serious health issues later in life, like heart disease or depression.
When you’re in danger or under extreme stress, your body and mind can react in different ways. These reactions are part of your body's survival system and help you deal with threats:
Fight: This reaction gets you ready to face the danger. You might feel angry or determined and prepare to confront the problem directly.
Flight: This reaction makes you want to escape. You might feel like running away from the danger or avoiding it by leaving the situation.
Freeze: This reaction makes you feel stuck and unable to move. You might feel paralyzed or overwhelmed, like you’re in shock and don’t know what to do.
Fawn: This reaction involves trying to please or calm down the threat to avoid conflict. You might go out of your way to make the other person happy or try to keep them from getting upset, even if it means ignoring your own needs.
Flop: Some experts believe there is a fifth potential reaction. This reaction is about feeling completely helpless or giving up emotionally. You might feel like you have no energy or ability to handle the situation, like you’ve just given up.
Recent Canadian research shows that over 61% of adults report experiencing at least one adverse childhood experience (ACE) during their childhood, making it essential for educators and caregivers to understand how trauma affects learning and behavior (Joshi et al., 2021).
The the science behind trauma responses shows that when children experience trauma, three key brain areas get affected in ways that directly impact learning:
The Alarm System (Amygdala): Imagine a smoke detector that's so sensitive it goes off when you make toast. That's what happens to the amygdala after trauma - it sees danger everywhere. So when you raise your voice to get the class's attention, Maya's brain screams "DANGER!" and she either fights, runs, or freezes.
The Memory Center (Hippocampus): This is where we organize and store memories. Trauma can shrink this area in individuals who've experienced multiple traumatic events (Teicher et al., 2016). This means students might genuinely not remember instructions you gave five minutes ago, or they might have trouble organizing their thoughts for that essay.
The CEO of the Brain (Prefrontal Cortex): This is our planning, decision-making, and self-control center. Trauma disrupts its development, which explains why some students seem to make the same "poor choices" repeatedly. Their brain's CEO is “offline.”
Dr. Dan Siegel's Hand Model of the Brain
Dr. Dan Siegel's hand model provides a simple, powerful way to understand what happens during trauma responses - and it's something you can teach to children of all ages.
What happens during trauma:
When children feel unsafe or triggered, they "flip their lid." The fingers (thinking brain) lift up, disconnecting from the thumb (emotional brain). In these moments, the connection between different parts of the brain (i.e., the limbic system and cortex) is broken, making logical thinking difficult and leading to behaviors driven by emotion rather than thoughtful responses.
What Are ACEs?
Adverse Childhood Experiences (ACEs) are stressful or traumatic events that happen to children before age 18. In Canada, over 60% of adults report experiencing at least one ACE, with physical abuse (25%), witnessing domestic violence (22%), and emotional abuse (22%) being most common (Joshi et al., 2021).
The original 10 ACEs
The groundbreaking study of over 17,000 adults identified 10 categories in three groups:
Abuse: Physical, emotional, or sexual
Neglect: Physical or emotional
Other Challenges: Domestic violence, substance use, mental illness, parental separation/divorce, incarceration
Who's most affected in Canada:
women (especially for abuse and neglect)
people with lower education or income
2SLGBTQ+ community members
Indigenous and racialized populations
Important Limitations
Recent research shows the original ACE framework is too narrow, missing systemic challenges affecting marginalized groups and not accounting for timing, severity, or protective factors like resilience and social support that strongly influence outcomes.
Students don't experience trauma in isolation - they experience it as a racialized student, an Indigenous student, female student, 2SLGBTQ+ student, student with disabilities, or a student whose family is struggling financially. Each part of their identity shapes how trauma impacts them and what helps them heal.
Students from diverse racial and cultural or religious backgrounds may experience:
Racial or cultural trauma from bias and discrimination
Historical trauma passed down through families due to system racism and discrimination
Immigration trauma and fears
Ongoing political conflicts in the world
Pressure to be "perfect" that particularly affects some cultural groups
Indigenous students and historical trauma:
Indigenous students carry the legacy of residential schools, which operated in Canada for over 150 years. The Truth and Reconciliation Commission of Canada described the residential school system as a "cultural genocide" that forcibly removed more than 150,000 Indigenous children from their families and communities. Children were subjected to harsh discipline, malnutrition, poor healthcare, abuse, and the deliberate suppression of their cultures and languages. The intergenerational effects of this trauma continues to affect educational and social achievement, levels of interpersonal violence, and affects relationships between parents and children.
What helps:
Learning about Indigenous cultures and histories, building relationships with Indigenous communities, and having diverse staff and materials. Most importantly, schools must recognize that historical trauma from residential schools and other colonial policies continues to affect Indigenous students, families, and communities today.
Real change requires more than cultural awareness—it needs action. This means implementing Truth and Reconciliation Commission recommendations like mandatory Indigenous curriculum from kindergarten to grade 12 and ensuring Indigenous communities have a voice in decisions. As outlined by the TDSB's The Urban Indigenous Education Centre, schools must work with Indigenous families as true partners. When schools don't take action, it reinforces harmful inequities that have persisted for generations.
Trauma and racism:
Students who experience racism face both immediate harm and long-term effects that hurt their well-being, grades, and sense of belonging at school. TDSB's TDSB's Anti-Hate and Anti-Racism Strategy recognizes that fighting racism requires looking at whole systems, not just individual incidents. The Centre of Excellence for Black Student Achievement helps students deal with racism, provides healing support, and teaches them how to advocate for themselves.
Schools must understand that racism creates ongoing stress that can show up as anxiety, depression, and students pulling away from school. Addressing this requires comprehensive changes to school systems and policies, rather than expecting students to simply cope with discriminatory environments.
2SLGBTQ+ students and trauma
These students often face unique trauma including:
Family rejection trauma
Identity concealment stress
Discrimination in multiple settings
Significantly higher rates of violence
Systemic discrimination
What helps:
Using chosen names and pronouns, visible 2SLGBTQ+ affirming materials, inclusive language training for all staff, enforced anti-discrimination policies and the recognition of ongoing systemic discrimination. See the TDSB's Gender and Sexual Alliances Club Resources.
Trauma and students experiencing poverty
Poverty creates ongoing stress affecting:
Housing stability
Food security
Family responsibilities
Shame and stigma
What helps:
Emergency supplies, flexible policies, free meal programs, community resource connections, treating all students with dignity. For more information about how the TDSB supports students experiencing poverty visit Student-Nutrition and Social Justice.
Trauma and students with disabilities
Students with disabilities experience trauma at 3-4 times higher rates than their peers, including:
Higher risk of abuse: Students with disabilities are targeted because they're seen as vulnerable or may have difficulty reporting abuse
Medical trauma: Frequent medical procedures, hospitalizations or painful treatments can be traumatic
Educational trauma: Being repeatedly told they're "not trying hard enough," being isolated from peers, or experiencing harsh discipline for behaviors related to their disability
Bullying and social isolation: Much higher rates of bullying and social exclusion
System trauma: Navigating systems that weren't designed for them, fighting for supports, or being made to feel like a burden
How trauma and Disability interact:
Trauma symptoms can look like disability symptoms (difficulty concentrating, memory problems, emotional ups and downs)
Disability can make someone more vulnerable to trauma
A student with ADHD who's been repeatedly reprimanded for hyperactivity might develop trauma around any form of correction
An Autistic student who's been forced to suppress natural behaviors might experience this as traumatic
What helps:
Trauma-informed IEPs, sensory considerations, communication supports, strength-based approaches, and inclusive trauma treatments. For more information visit: TDSB Special Education and Inclusion Department.
Assessment considerations:
How might trauma affect this student's learning and behavior?
Are there trauma triggers in the school environment?
What are the student's strengths and coping strategies?
How do trauma symptoms interact with disability-related challenges?
Present levels of performance:
Note environmental factors that help or hinder the student
Include information about regulation strategies that work
Describe the student's communication and social interaction patterns
Goals and supports:
Include trauma-informed strategies alongside disability accommodations
Build in sensory supports for students who have both sensory processing differences and trauma
Consider how trauma might affect the student's ability to use their usual coping strategies
Focus on building emotional regulation and self-advocacy skills
Accommodations and modifications:
Access to trusted adults throughout the school day
Flexible seating and movement breaks
Alternative assessment methods when stress interferes with performance
Modified discipline approaches that focus on teaching rather than punishment
Sensory supports
Provide multiple ways for students to demonstrate understanding and progress
Include interests and preferences in planning
Resources for creating trauma-informed IEPs
Kennedy Krieger Institute: Designing IEPs for Children with Trauma
Impact on Thinking Skills (Cognition)
Attention and focus:
Students may have difficulty concentrating on tasks
They might be easily distracted by sounds, movements, or changes in routine
Hypervigilance (constantly scanning for danger) uses up mental energy needed for learning
May appear to be "daydreaming" but are actually monitoring their environment for threats
Memory problems:
Difficulty remembering instructions, especially multi-step directions
Problems with both short-term memory ("What did the teacher just say?") and long-term memory (recalling previously learned information)
Trauma memories can intrude during learning, making it hard to focus on academic content
May remember emotional content while forgetting factual information
Executive functioning (a set of mental processes that help individuals plan, monitor, and successfully achieve goals):
Problems with planning and organizing work
Difficulty managing time and completing tasks
Trouble with self-control and managing behavior
Challenges with flexible thinking and problem-solving
May struggle with transitions between activities
Impact on Relationships & Emotions
Trust issues:
Difficulty trusting adults, including teachers
May be suspicious of others' motives
Challenges forming positive relationships with peers
May test relationships to see if adults will reject them
Social skills:
May have missed opportunities to learn appropriate social skills
Difficulty reading social cues and understanding others' emotions
May interpret neutral situations as threatening
Challenges with conflict resolution and negotiation
Emotional regulation:
Intense emotional reactions to minor triggers
Difficulty calming down once upset
May withdraw from social situations to avoid overwhelming feelings
Mood changes that seem unpredictable to others
Impact on Physical Development
Sleep problems:
Nightmares or difficulty falling asleep
Fatigue affecting daytime learning
Hypervigilance interfering with rest
May fall asleep in class due to sleep disruption
Physical health:
Frequent headaches or stomach aches
Getting sick more often due to stress on the immune system
Physical tension and stress responses
Changes in appetite or eating patterns
Sensory processing:
Heightened sensitivity to sounds, lights, or textures
May seek or avoid certain sensory experiences
Difficulty filtering out background noise
Physical comfort items may be especially important
Trauma can cause different problems, including emotional issues like sadness or anxiety, physical symptoms like tiredness, and long-term problems like trouble sleeping or feeling insecure. One condition related to trauma is post-traumatic stress disorder (PTSD), where someone re-lives the traumatic events through flashbacks or nightmares.
When someone experiences trauma, their feelings and reactions can be very intense and hard to control. It might be especially hard to notice trauma in children, as they are not always able to express what they’re feeling. Here are some signs to watch for:
Believing the world is unsafe and feeling worried about the future.
Feeling hopeless and like they have no control over their world.
Being overly alert or easily startled (i.e., hypervigilance).
Having trouble focusing or finishing work because they are preoccupied with safety or avoiding danger.
Avoiding activities, being absent often, taking long breaks, or other avoidant behaviors.
Excessive worry or fear of new situations, or developing new fears that they didn’t have before.
Trouble with changes or transitions.
Difficulty trusting others or being overly suspicious, and having problems getting along with peers or adults.
Acting out traumatic events through play or drawing.
Acting younger than their age, like wetting the bed or thumb-sucking.
Outbursts of anger or frustration, mood swings, acting aggressively, or unpredictable behavior.
Signs of depression or anxiety, such as feeling sad often, losing interest in things they used to enjoy, withdrawing from friends and family, eating too little or too much, trouble sleeping, nightmares, or physical symptoms like headaches or stomach aches without a clear cause.
If you see these signs in a child, it doesn’t definitely mean they’ve experienced trauma, but it’s a good idea to provide support and consider talking to a mental health professional if you’re concerned. Getting help early can make a big difference in how they cope and recover.
Traumatic experiences can make it hard for children to learn, manage their emotions, and interact with others. Certain things might make children or teens react negatively, including:
Safety drills
Not giving them choices or a sense of control
Loud noises, yelling, or angry voices
Punishments or threats
Surprises
Not keeping promises
Blaming them or making assumptions
Traditional ways of handling discipline often don’t consider underlying issues. It’s increasingly important to use trauma-informed practices in schools to help support the emotional and mental health of students. Here are some ways to do that:
Give gentle reminders about expected behavior, but remember that having a positive relationship is key to getting their cooperation.
Use regular and consistent routines. Post and maintain a consistent schedule. Warn about any potential surprises (e.g., fire drill).
Allow time for transitions.
Use clear communication and visual aids whenever possible.
Avoid punishments that might upset them or make their trauma worse.
Create safe places/zones (e.g., comfortable corner with favourite or calming items).
Build relationships and connect children with caring adults: Supportive, responsive relationships with caring adults as early in life as possible can prevent or reverse the damaging effects of toxic stress response.
Help develop a support system for children and youth. It’s essential to have caring adults (e.g., mentors at school or religious or cultural organizations) that can provide emotional and practical help.
Welcome children to the classroom or school and show genuine interest in what matters to them.
Let children/youth talk about what happened if they want to and provide support and understanding. You don’t need to know all the details about the trauma.
Listen and reflect back what they are saying.
Validate them by letting them know their feelings are okay and understood.
Remember to approach their feelings with empathy, not judgment.
It's important to recognize and understand each student's unique experience of trauma, taking into account any cultural considerations, to respond to trauma in a respectful and effective way.
Develop a sense of identity and build self-confidence and a sense of control:
Knowing who they are and what they believe in helps people feel more stable and grounded. This can make handling trauma easier because it gives them a strong base to rely on during tough times. Believing in themselves and their abilities can make students more resilient. When they feel confident, they’re better at facing challenges and setbacks. For children and youth, feeling capable is especially important when dealing with trauma. Additionally, feeling like they have some control over their life and decisions helps them feel less overwhelmed. When they can make choices and take action, they regain a sense of power that trauma might have taken away.
Support children in developing a sense of self through identifying their likes, dislikes, values, talents, opinions, and boundaries.
Teach them assertive communication skills (e.g., how to ask for what they want and protest what they do not want).
Help them feel good about themselves by giving them tasks they can succeed at and provide leadership opportunities.
Offer children and youth choices to allow them to feel a sense of control.
Develop resilience through teaching emotional regulation:
Resilience is the ability to bounce back and keep going when things get tough. When someone is resilient, they face challenges, problems, or difficult situations and manage to recover from them. They might feel upset or stressed, but they find ways to handle their emotions and keep moving forward.
Teach children and teens how to identify their feelings.
Teach deep breathing, meditation, and grounding techniques to help them feel calm and focus on the present.
Post visual reminders of these tools.
Practice these skills when they are calm so that they can use them when they’re feeling overwhelmed.
One helpful exercise is the “5-4-3-2-1” technique. This involves:
Looking around and naming five things they can see.
Touching and naming four things they can feel.
Listening and naming three things they can hear.
Smelling and naming two things they can smell.
Tasting and naming one thing they can taste.
Reframe behaviour:
Reframing behavior means looking at actions in a different, more positive way. It’s like changing your glasses to see things differently. Instead of focusing on the bad part of something, you try to find something good or useful about it. For example, if a child is having a tantrum because they can’t have a toy, instead of thinking they’re just being naughty, we might reframe it by considering that they might be feeling frustrated, tired, or overwhelmed. Reframing helps us see the outburst as a sign that the child needs help. This approach can lead to more effective solutions and a better understanding of the child’s needs.
Instead of seeing a student’s behavior as simply disruptive, consider it as a way the student is trying to communicate their needs or feelings.
Directly ask kids what they need to feel better. They might have specific requests that can help them manage their day.
Look beyond the surface behavior to understand what might be causing it. Try to understand the student's perspective and what they might be going through.
Understand that behavior can change and improve over time with effort and support.
Focus on what the student is doing well, rather than only focusing on the negative aspects of their behavior.
Adjust expectations to match the student’s current abilities and needs.
Focus on reinforcing positive behaviors rather than just punishing negative ones.
Set up a routine that includes physical activities or sports.
Encourage children/youth to get involved in extracurricular activities like school sports teams or other organized recreational activities.
Look for free or low-cost recreational programs through community organizations or public recreational centres.
Be patient:
Trauma can make it difficult to manage emotions and affect behaviour. Even if it seems minor to adults, if a child feels stressed or unsafe, it’s a real issue for them.
Be patient and give them time to heal.
Schedule regular breaks to help them stay focused and calm.
What educators can do - Educators are uniquely positioned to provide crucial support through:
Creating safe, predictable classroom environments
Building caring relationships with students
Recognizing signs that a student may need additional support
Implementing universal trauma-informed strategies
Collaborating with mental health professionals
What educators should NOT do:
Attempt to diagnose trauma or other mental health conditions
Provide therapy or clinical treatment
Ask detailed questions about traumatic experiences
Make assumptions about a student's trauma history based on behavior
Lead class discussions about trauma without consulting with their School Support Team first
Why these boundaries matter:
The lack of specialized clinical training to diagnose or treat trauma
Inappropriate questioning can re-traumatize students
Well-meaning but untrained interventions can cause harm
Professional boundaries protect both students and educators
Children/youth dealing with trauma can require professional support to cope.
Seek professional support when:
A student discloses abuse or neglect
A student expresses thoughts of suicide or self-harm
A student's behavior poses a safety risk to themselves or others
You observe significant, persistent changes in a student's functioning
Consider consultation with the School Support Team when:
A student's trauma responses interfere significantly with learning
You're unsure how to support a student's specific needs
Classroom strategies aren't showing improvement over time
You need guidance on trauma-informed accommodations
Where to seek help:
Counseling or therapy with a regulated mental health professional such as a psychologist, psychological associate, social worker or psychotherapist may be appropriate. Your School Team can provide some resources.
Some children may benefit from medication. A consultation with child's family doctor or pediatrician may be helpful if the family agrees.
See our section on community mental health supports.
Signs of secondary trauma:
Emotional: Feeling overwhelmed, anxious, angry, or numb
Physical: Headaches, fatigue, getting sick more often
Behavioral: Avoiding certain students, working excessive hours, withdrawing
Cognitive: Intrusive thoughts, difficulty concentrating, questioning effectiveness
Self-care strategies:
Set healthy boundaries between work and home
Connect with colleagues who understand
Take lunch breaks, even if brief
Engage in activities just for pleasure
Get adequate sleep
Seek professional help when needed
Building supportive school cultures:
Regular School Team check-ins
Shared responsibility for challenging students
Administrative support for trauma-informed practices
Professional development opportunities
Post-Traumatic Stress Disorder (PTSD) is a specific mental health condition that can develop after experiencing or witnessing a traumatic event. Not everyone who experiences trauma develops PTSD, but it's important to understand its signs and impact on learning.
Re-experiencing symptoms:
Flashbacks or feeling like the traumatic event is happening again
Nightmares or sleep disturbances
Intense distress when reminded of the trauma
Physical reactions (sweating, rapid heartbeat) to trauma reminders
Avoidance symptoms:
Avoiding places, people, or activities that remind them of the trauma
Refusing to talk about the traumatic event
Emotional numbness or detachment
Avoiding thoughts or feelings related to the trauma
Negative changes in thinking and mood:
Persistent negative thoughts about themselves or the world
Distorted thoughts about the cause of the trauma
Persistent negative emotions (fear, anger, guilt, shame)
Loss of interest in activities they used to enjoy
Difficulty experiencing positive emotions
Changes in physical and emotional reactions:
Being easily startled or frightened
Always being on guard for danger
Self-destructive behavior
Problems concentrating
Sleep problems
Irritability or anger outbursts
Students with PTSD may experience:
Difficulty concentrating in class
Memory problems affecting academic performance
Emotional reactions that seem out of proportion to the situation
Physical symptoms like headaches or stomach problems
Difficulty with peer relationships
Increased absences from school
Regression in academic or social skills
Maintain consistent, predictable routines
Provide clear warnings before transitions or changes
Create a safe space where the student can go when overwhelmed
Work with the school's mental health team for additional support
Avoid pushing the student to talk about their trauma
Focus on strengths and building resilience
Understand there will be good days and difficult days
Resilience is the ability to bounce back from difficult experiences, adapt to challenges, and grow stronger through adversity. It's not about avoiding problems or pretending everything is fine - it's about developing the skills and mindset to navigate life's challenges effectively.
Research shows that resilience isn't something you're just born with—it's something you can build and grow stronger over time. Scientists have discovered that our brains can actually change throughout our lives, and just like bad experiences can hurt our brains, good experiences and caring relationships can help heal them.
The brain can reorganize itself by forming new connections throughout life, allowing us to learn new skills, recover from injuries, and adapt to new experiences. This ability is called neuroplasticity, and it's the reason we can become more resilient.
When people face stress well, their brains don't just ignore the stress—they actively work harder to fight back against it.
Exercise: Regular exercise increases the size of brain areas like the prefrontal cortex and hippocampus, which typically shrink in people who've experienced chronic stress or trauma.
Mindfulness and Meditation: Mindfulness practices increase gray matter in brain areas that help with self-awareness and managing emotions.
Caring Relationships: When we connect with others, our brains release feel-good chemicals like oxytocin and dopamine that make us feel better and healthier. Even simple things like looking at a picture of someone who supports us can reduce pain by changing how our brain processes it.
The good news is that healthy brains have a strong ability to bounce back when we give them the right experiences and support. Therapies like cognitive behavioral therapy (CBT) use the brain's ability to change to help people process trauma and develop healthier ways of coping.
For children especially, the right environment and support can significantly reduce or even reverse the impact of trauma because young brains are especially good at changing.
Trauma Handout
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