How to recognize school bullying : the complete guide for educational teams
📑 Table of Contents
- School bullying: what are we really talking about?
- What the numbers say in France in 2025-2026
- The different forms of bullying to know
- Cyberbullying: a specific and amplified reality
- Warning signs in the student: what adults need to spot
- Group dynamics: spotting what is happening in the classroom
- Common mistakes adults make in the face of bullying
- What to do when spotting a situation: the step-by-step protocol
- Legal obligations of schools
- Practical cases: concrete situations in schools
- Why training collectively changes everything
In France, one in ten students is a victim of school bullying during their schooling. Behind this statistic, hundreds of thousands of children and teenagers live every day in fear, disgust for school, shame, and sometimes despair. However, studies consistently show that the majority of bullying situations could have been detected earlier if the adults in the institution had known how to spot the signs.
The problem is not the indifference of education professionals. Teachers, school counselors, educational assistants, school life staff, directors: all are concerned, all often feel helpless. Bullying is a reality that is sometimes minimized — because it is uncomfortable, because it seems difficult to prove, because the boundaries with ordinary conflicts are blurred. And because no one is trained to spot it accurately.
This guide has been designed to fill this gap. It is aimed at all professionals working in a school setting, from primary to high school, with a single objective: to provide you with concrete tools to recognize bullying, understand its dynamics, and act appropriately. Because every situation spotted in time is a preserved life trajectory.
This guide is a tool for awareness and detection assistance. It does not replace certified training or the official protocols of your academy. In the face of a proven harassment situation, institutional reporting and professional support for the victim are essential. The DYNSEO training provides you with the tools and methods to act coherently and effectively within your team.
1. School harassment: what are we really talking about?
The first difficulty in the fight against school harassment is terminological. The word is often misused, either to qualify occasional conflicts that do not meet the criteria for harassment, or conversely avoided to describe situations that fully correspond to it. Clarifying the definition is therefore the first step.
The three fundamental criteria
School harassment is defined by the conjunction of three inseparable criteria. The absence of any one of these criteria does not mean that there is no problem — but it may guide the intervention differently.
- The repetition. Aggressive or humiliating acts are repeated over time, regularly or frequently enough to create a lasting climate of fear for the victim. A single incident, even serious, does not constitute harassment in the strict sense — but it may be a preamble to it.
- Intentionality. The acts are deliberate. The harasser knows that their behaviors harm their target and nonetheless continues to reproduce them. It is not a clumsiness or a misinterpreted game, but a conscious desire to cause suffering, humiliation, or domination.
- The power imbalance. The victim is in a position of inferiority that prevents them from defending themselves effectively. This inferiority can be physical (size difference), numerical (one against several), social (popularity, status within the group), or psychological (known and exploited emotional fragility).
The definition adopted by the French Ministry of National Education is based on these three criteria, in line with international academic definitions, notably those put forward by researcher Dan Olweus, a global pioneer in bullying research.
Harassment vs conflict: a crucial distinction
The confusion between harassment and conflict is one of the most frequent sources of inaction among adults. An ordinary conflict between students involves two parties disputing on a more or less balanced basis. The conflict is occasional, both parties can alternately be in the position of the aggressor, and resolution generally involves mediation.
Harassment, on the other hand, involves a stable and lasting asymmetry. There is always one or more aggressors, a clearly identified victim, and often a group of passive witnesses who, through their silence, contribute to maintaining the system. The victim cannot escape the situation alone. They need external intervention.
💡 Operational distinction for professionals. When you observe tension between students, ask yourself two simple questions: Do both parties seem equally affected? and Is this recurring? If the answer to the first is no and to the second is yes, you are probably not facing a simple conflict. Bullying is also recognized by the reaction of the supposed victim: a bullied student often struggles to defend themselves verbally, seeks to escape the situation, and appears resigned rather than combative.
2. What the numbers say in France in 2025-2026
The data collected by the National Education, specialized associations, and researchers provide a precise picture of the reality of school bullying in France. These figures are important for educational teams: they help to break the denial, understand the extent of the phenomenon, and measure the urgency of a structured action.
According to the most recent school victimization surveys, approximately 700,000 students are victims of bullying in France each year, across all levels. This figure encompasses physical, verbal, social, and digital forms. It represents an average of one to two students per class — a reality that every teacher, every school counselor, every member of the educational team statistically carries in their professional daily life, often without knowing it.
Cyberbullying is experiencing constant growth. Studies show that it now affects between 15 and 20 % of school-aged adolescents, with a marked intensification since the widespread use of smartphones among middle school students. The particularity of cyberbullying is that it does not stop at the school door: the victim is affected in their private space, at night, on weekends, during school holidays, with no possible respite.
| School level | Estimated prevalence | Dominant form | Particularities |
|---|---|---|---|
| Primary school (CE2-CM2) | 12 to 14 % | Physical and verbal | Often visible but minimized by adults ("tiffs") |
| Middle school (6th-9th grade) | 10 to 12 % | Social and digital | Peak in 6th grade during the transition, significant increase in cyberbullying |
| High school (10th-12th grade) | 5 to 8 % | Social and digital | More insidious forms, social exclusion, harassment related to orientation or appearance |
The consequences of untreated school bullying are documented and serious. Academically, there is a gradual dropout, a decline in results, and increasing absenteeism. Psychologically, victims show significantly higher rates of anxiety, depression, sleep disorders, and in the most severe cases, suicidal ideation. Longitudinal studies show that the aftereffects can persist into adulthood, affecting self-esteem, social relationships, and quality of life.
3. The different forms of bullying to know
School bullying is not limited to physical fights in the playground. It takes on multiple forms, sometimes very discreet, that require particular attention from adults. Knowing these forms is essential to avoid overlooking situations that, due to their invisibility, are particularly destructive.
Physical bullying
This is the most identifiable form and yet, paradoxically, it often hides behind normalization. It involves hitting, pushing, pinching, spitting, but also stealing or destroying school belongings. The bullied student may be pushed down the stairs "by accident," their backpack regularly overturned, their belongings "lost." These acts are often presented as games by the aggressors, complicating adult intervention.
Verbal bullying
Repeated mockery about physical appearance, first name, voice, clothing, family, academic results, presumed sexual orientation, religion, or ethnic origin. Verbal bullying may seem "trivial" to the adult who is not the target — but for the victim who endures the same words, the same humiliating nicknames, the same laughter, every day for weeks or months, the impact is deep and lasting. Neuroscience studies show that repeated verbal humiliation activates the same brain areas as physical pain.
Social or relational bullying
This form is the hardest for adults to spot, as it leaves no visible traces. It involves deliberately excluding a student from the group, organizing their social isolation, spreading rumors to tarnish their reputation, and encouraging other students to avoid them. The victim gradually finds themselves alone, not understanding why, often convinced that the problem lies with them. This form of bullying is particularly prevalent among girls.
Discriminatory bullying
Bullying can specifically target identity characteristics: disability, learning disorders, ethnic origin, religion, real or presumed sexual orientation, gender. These discriminatory forms have a particularly serious dimension as they reach the victim's deep identity. Students with DYS disorders, students with disabilities, or LGBTQ+ students are statistically overrepresented among bullying victims.
📋 The 4 roles in a harassment situation
- The aggressor (or aggressors): the one who initiates and perpetuates the acts. They can act alone or be the "leader" of a group.
- The victim: the student targeted repeatedly and deliberately. Note: the same student can be both a bully in one context and a victim in another.
- The bystanders: the students who actively participate in the bullying acts without being the initiator (laughing, relaying mockery, sharing content online).
- The passive witnesses: the students who observe without intervening. Their silence is interpreted by the aggressor as approval. Training witnesses to react is one of the keys to effective intervention.
4. Cyberbullying: a specific and amplified reality
Cyberbullying refers to any form of harassment carried out via digital tools: social networks, instant messaging, online games, forums. It can take the form of insulting messages sent en masse, humiliating posts, sharing compromising photos or videos, identity theft, fake profiles created to harm, deliberate exclusion from online groups.
What makes cyberbullying particularly devastating is the combination of several aggravating factors absent from "in-person" harassment.
- The absence of a temporal refuge. Traditional harassment stops outside of school. Cyberbullying, on the other hand, follows the victim everywhere, at any time. The bedroom, meant to be a safe space, becomes the place where hurtful messages arrive.
- The speed of dissemination. A humiliating content can be shared with hundreds, thousands of people in a matter of minutes. The scale of the audience potentially witnessing the humiliation is unparalleled compared to what exists in a physical environment.
- The permanence of traces. Once online, content is difficult to completely erase. The victim knows that photos, messages, videos can resurface months or years later.
- The possible anonymity of aggressors. Some bullies use anonymous or pseudonymous profiles, which heightens the victim's sense of helplessness and complicates identification by adults.
- Invisibility for adults. Parents and education professionals do not see what happens on private messaging or in closed groups. Cyberbullying is often discovered late, after weeks or months of silent suffering.
The difference between classic harassment and cyberbullying is that the victim can at least, in the evening at home, breathe a little. With digital, the carnage continues even under the covers. I have had students who turned off their phones at night because they could no longer stand hearing the notifications. But they would wake up in the morning with 200 messages.
Cyberbullying also involves specific behaviors that educational teams must learn to identify, including "pile-on" (when a group collectively targets an individual in a comment thread), humiliating challenges filmed and shared, and "outing" (non-consensual public revelation of personal information, including sexual orientation).
5. Warning signs in the student: what adults should notice
Early detection of bullying largely relies on adults' ability to notice changes in a student's behavior or state. These signs are rarely spectacular. They often represent a gradual evolution that, taken in isolation, may seem trivial. It is the combination of several signs and their persistence over time that should raise alarm.
Behavioral signs at school
A student who regularly finds themselves alone in the playground when they were previously part of a group deserves attention. Similarly, a student who systematically avoids certain areas of the school (changing rooms, hallways, restrooms, playground), who arrives late to specific classes without apparent reason, or who seeks to stay close to adults during free time sends signals that may indicate a bullying situation.
Participation in class can also be revealing. A student who stops raising their hand, who visibly blushes when a peer laughs after they have answered, who avoids reading aloud or moving in front of the class, may be experiencing a situation where their contributions are regularly ridiculed by their peers.
Physical and somatic signs
The body speaks when words fail. The school nurse is often the first to notice the somatic manifestations of bullying: recurring stomach aches on Monday mornings, frequent headaches before certain classes, chronic fatigue related to sleep disturbances. Unexplained injuries, torn clothing, and school supplies that are regularly "lost" or damaged can also indicate physical bullying.
Emotional and relational signs
A change in the student's overall mood — persistent sadness, irritability, withdrawal, loss of interest in activities they once enjoyed — is an important signal. Anticipatory anxiety is particularly characteristic: the student shows signs of distress as early as Sunday evening, refuses to go to school, and invents excuses to stay home.
| Area | Possible warning signs | To distinguish from |
|---|---|---|
| Social behavior | Sudden isolation, avoidance of the playground, seeking proximity to adults | Naturally introverted temperament (stable over time) |
| Academic results | Sudden or gradual drop in grades, lack of concentration, incomplete homework | Pre-existing learning difficulties, normal transitional period |
| School attendance | Increasing absenteeism, frequent tardiness, school refusal | Documented physical health issues |
| Verbal and non-verbal language | Self-deprecating comments, "I'm no good," "everyone hates me" | Normal humility, temporary lack of confidence |
| Digital usage | Agitation or distress after checking the phone, sudden stop of social media use | Voluntary digital fatigue, parental decision |
| Somatic | Frequent nurse visits, recurring bodily complaints in the morning | Identified chronic conditions, occasional performance anxiety |
It is crucial to understand that the victim of bullying rarely speaks spontaneously about their situation. They may feel ashamed, fear not being believed, worry about retaliation if the bully learns they spoke up, or simply lack the words to describe what they are experiencing. This is why adult observation is irreplaceable.
6. Group dynamics: spotting what is happening in the classroom
Bullying is not limited to a binary relationship between a bully and a victim. It occurs within a group dynamic that involves the entire class, or even an entire grade. Understanding these dynamics allows teachers and CPEs to identify bullying situations even when the victim says nothing.
Observable clues in a class group
Some collective behaviors are revealing. Laughter that seems to trigger systematically when a particular student speaks, whispers that stop abruptly when a student enters, exchanged glances loaded with implications, and seats systematically left empty around the same student during group work: these clues, taken together, paint a concerning picture.
The composition of groups during free activities is also instructive. A student who is never chosen during peer designations, who consistently finds themselves alone or with adults during outings, and whom no one wants as a work partner, experiences a form of social exclusion that can constitute relational bullying.
The role of bystanders and the silence rule
In the vast majority of bullying situations, other students are aware. Some actively participate by laughing or relaying mockery. Others wish to intervene but do not dare, for fear of becoming the next target themselves. Still others adopt a survival strategy of staying away from the situation to avoid being associated with the victim.
This silence rule is a powerful mechanism that contributes to the perpetuation of bullying. Working with the entire class, and not just with the students directly involved, is one of the keys to effective intervention. Programs like "Sentinelles" or peer support initiatives train bystander students to react protectively.
Harassment works because it is a spectacle. The harasser needs an audience. If we train witnesses to cut the show — to look away, to leave, to find an adult — we deprive the aggressor of what they need to continue. It's as simple and as complex as that.
7. Common mistakes adults make in the face of harassment
Education professionals mean well. But in the face of harassment, some instinctive or habitual reactions can worsen the situation. Identifying these mistakes is not a criticism of professionals — it is recognizing that they need specific tools that their initial training has not always provided.
This is the most common and damaging mistake. It sends the victim the message that their suffering is not legitimate, that adults cannot help them, and that they must handle it alone. It can also worsen the situation by giving the harasser the feeling that their behaviors are tolerated.
Take every complaint from a student seriously, even if it seems disproportionate at first glance. Observe the situation over time before concluding. Use the definition criteria (repetition, intentionality, power imbalance) to evaluate objectively.
Organizing a direct confrontation between the victim and their harasser, even with the best intentions, is a serious mistake. It puts the victim in a position of inferiority in front of their aggressor, heightens their sense of helplessness, and can lead to retaliation after the meeting. It also allows the harasser to question the facts and humiliate their victim again in front of an adult.
Conduct separate interviews with the victim, the harasser, and witnesses. Never reveal to the harasser the identity of the person who reported the facts. Favor the shared concern method or other validated approaches that avoid direct confrontation.
Advising the victim to "not react," to "respond with humor," or to "stand up to them" amounts to asking them to solve a problem they are not responsible for on their own. This presupposes that they have the psychological tools to do so, which is rarely the case — otherwise, they would have already done it.
Clearly position the adults in the establishment as the guarantors of the student's safety. Explain to them that it is not their responsibility to "manage" harassing behaviors, and that the adults will take charge of the situation.
A teacher who manages a harassment situation in their class alone, without informing the CPE, the administration, or the school life, risks an incoherent and insufficient intervention. Harassment goes beyond the classroom and requires a coordinated institutional response.
Report any suspected situation to the designated resource person in the establishment (harassment referent, CPE, management). Work in a multidisciplinary team. Document observations accurately and chronologically.
8. What to do when spotting a situation: the step-by-step protocol
In the face of a suspected or identified harassment situation, the action of the establishment's professionals must be structured, rapid, and coordinated. Here is the recommended protocol, in line with the official guidelines from the Ministry of National Education and best practices from research.
- Observe and document. Before any action, write down what you observe: the precise facts, dates, locations, involved persons, and present witnesses. This documentation is essential to objectively assess the situation, ensure continuity if other adults take over, and, if necessary, build a case file.
- Listen to the alleged victim. Offer an individual interview in a secure space. Adopt an active and non-judgmental listening posture. Do not minimize what the student is saying, even if the facts seem minor to you. Reassure them that you will help and that they were right to speak up.
- Inform the resource person of the establishment. CPE, harassment referent, or management depending on your establishment's organization: the situation must be reported immediately to the competent person. Do not manage it alone.
- Inform the families. The parents of the victim must be informed quickly. Those of the aggressors as well, at a later stage and with caution. The meeting with the families should be conducted by an adult trained in this delicate communication.
- Assess the situation with the team. Organize a team meeting to share observations, cross perspectives, and decide on measures to take. Include the main teacher, the CPE, the social worker if necessary, and the school nurse.
- Implement immediate protective measures. Physically separate the victim and the harasser in shared spaces (placement in class, tables in the cafeteria, etc.). Increase supervision in identified high-risk areas.
- Intervene with the perpetrators. Intervention with harassers should be conducted using a structured method. The shared concern method, validated by research, allows for behavior changes without resorting to confrontation or immediate punishment.
📞 Official resources to know
- 3018 : national number for combating cyberbullying, available for students, parents, and professionals
- 3020 : green number for School Bullying from the Ministry of Education
- No to Bullying (NAH) : official program from the Ministry of Education with downloadable educational tools
- e-Childhood / Signal-spam : reporting of illegal digital content
- Pharos : national platform for reporting illegal online content
9. Legal obligations of schools
School bullying is not just an educational issue: it is also a legal challenge. Schools have clear legal obligations regarding the prevention and handling of bullying, and staff can be held liable in cases of inaction.
The legislative framework strengthened since 2022
The law of March 2, 2022, marked a major turning point in the fight against school bullying in France. It creates the offense of school bullying, punishable by 3 years in prison and 45,000 euros in fines, with aggravating circumstances increasing the penalties to 10 years and 150,000 euros when the bullying has led the victim to commit suicide or self-harm. This law applies to minors who commit bullying and involves the responsibility of supervising adults in cases of proven failure to fulfill their obligations of information and protection.
Beyond criminal law, education law imposes a duty of results on school leaders regarding student safety. This includes implementing prevention and handling protocols for bullying, designating a bullying referent in the school, and training staff in detection and intervention.
The civil and administrative liability of staff
A staff member of the Ministry of Education who is aware of a bullying situation and does not act may face civil liability. The principle of non-assistance to a person in danger, in common law, and the statutory obligations of civil servants regarding reporting situations that endanger student safety create a clear legal framework. Inaction is not a neutral option : it constitutes a documentable professional failure.
⚖️ What a school must do concretely. According to official texts and recommendations from the Ministry of Education, each school must: designate a trained school bullying referent, display help numbers (3018, 3020) in common areas, establish a written protocol for handling reports, organize at least one awareness-raising action per school year for students, and ensure ongoing training for staff. Certified training is the most effective way to fulfill this last obligation while ensuring consistency of practices within the team.
10. Practical cases: concrete situations in schools
Lucas is a quiet student, a good student, who enters 5th grade after a trouble-free 4th grade. In October, his homeroom teacher notices that he eats alone in the cafeteria. He thinks that Lucas may be shy. In November, the nurse sees him for the third time in a month for stomach pains. In December, his parents call to report that he refuses to go to school on Monday mornings and cries on Sunday evenings.
The investigation conducted by the CPE reveals that since the start of the school year, a group of four boys has systematically imitated Lucas's way of speaking (he has a slight stutter), tripped him in the hallways, excluded him from the class WhatsApp groups, and created a parody account with his name on a social platform. Lucas said nothing out of shame and fear.
✅ What could have allowed for earlier detection: The pooling of observations (teacher, nurse, school life) as early as October would have allowed for the identification of the pattern in the first month. A protocol for sharing information between adults and training in recognizing warning signs were the missing tools. After a structured intervention, Lucas was able to reintegrate into the class in a secure environment.
Inès had shared a photo of herself in a swimsuit in a private group of six close friends. One of the group members forwarded the photo to other students in the class. Within 48 hours, the photo circulated throughout the grade and humiliating comments were posted under a cropped version of the photo on an anonymous account. Inès learned about it through a friend and did not come to school the next day.
It was an education assistant who raised the alarm after hearing comments in the study hall. The deputy principal was informed and implemented an emergency protocol: immediate meeting with Inès and her parents, reporting to 3018 for help in removing content, summoning the students involved and their families, and psychological support through RASED.
⚠️ Institutional lesson: The speed of the intervention limited the duration of the exposure. The school then organized a sensitization session on consent and the sharing of digital content for the entire grade, conducted as part of the EMC course. The prior training of the education assistant to recognize signs of cyberbullying was crucial.
Amara is the only student of sub-Saharan origin in her class. Since the beginning of the year, two classmates have regularly made remarks about her skin color and her name. They have convinced the other students not to play with her during recess by saying that she "smells bad." The teacher observes that Amara often puts herself in a corner during recess but attributes this to her "solitary nature."
It is Amara's mother who comes to the school after her daughter has refused to eat for three days. The meeting with the teacher and the principal reveals a situation that had been going on for more than two months.
✅ Result: The intervention included classroom work on diversity and discrimination, appropriate sanctions for the two main students, and personalized follow-up for Amara with the help of RASED. The principal organized a DYNSEO training for the entire teaching team on detecting discriminatory harassment, noting that the signals had been misinterpreted.
11. Why collective training changes everything
The practical cases above illustrate a reality that research confirms: training educational teams is the most effective lever to reduce the prevalence of harassment and improve the quality of interventions. It is not a question of goodwill — professionals have that. It is a question of tools, shared frameworks, and common language.
What training changes for a team
When an entire team — teachers, CPE, educational assistants, administrative staff, nurse, social worker — receives the same training, several structuring effects emerge. All adults use the same criteria to assess a situation, which reduces the differences in interpretation that often lead to inaction. Inter-professional communication about concerning situations becomes smoother because it relies on shared vocabulary.
Trained staff also develop a better tolerance for uncertainty: they know they do not need to be "100% certain" of a harassment situation to report and implement preventive measures. The idea that "if I'm wrong, I will have caused harm" — which often inhibits action — is replaced by the understanding that reporting a concern is a professional obligation, not an accusation.
DYNSEO training: a suitable response for schools
The training Preventing and Acting Against School Harassment and Cyberharassment from DYNSEO has been specifically designed to meet the needs of field teams. It is based on the latest research data, the official protocols of the National Education, and feedback from hundreds of professionals trained across France.
It is certified Qualiopi, which guarantees the quality of the educational system and allows institutions to access funding for continuing professional training. It is adaptable to the context of each institution — primary, middle school, or high school — and can be organized in person or remotely depending on organizational constraints.
At the end of the training, participants are able to identify the diagnostic criteria for harassment and cyberharassment, distinguish between the different forms and their specificities, spot warning signs in students as well as in group dynamics, conduct initial interviews securely for the victim, engage in their institution's institutional protocol, and contribute to establishing a sustainable prevention culture within their team.
Before the training, everyone relied on their intuitions. After, we had a common protocol. The first time a situation arose, within a few hours we had shared our observations, defined everyone's roles, and implemented measures. It had nothing to do with what we would have done before.
🎯 What you will be able to do after DYNSEO training
- Use the three diagnostic criteria to accurately distinguish between bullying and conflict
- Identify the physical, verbal, social, and digital forms of bullying
- Spot behavioral, somatic, and relational warning signs in students
- Analyze group dynamics to detect situations before they escalate
- Conduct an interview to gather information from a supposed victim
- Avoid the most common mistakes that worsen bullying situations
- Apply the intervention protocol in accordance with the legal obligations of the institution
- Work in coordination with the entire educational team on a bullying situation
- Integrate a sustainable prevention approach into classroom and school life
School bullying is not a fatality. Studies conducted in countries that have heavily invested in training educational teams show significant reductions in prevalence. In Finland, the KiVa program — based on adult training and working with bystanders — has reduced the number of bullying victims in participating institutions by 40 %. In France, comparable results have been achieved in institutions that have implemented consistent protocols supported by ongoing training.
The question is not whether your institution is affected by school bullying. Statistically, it is. The question is whether your teams have the tools to address it. This is precisely what DYNSEO training addresses.
🎓 Train your team in preventing school bullying
DYNSEO training "Prevent and act against school bullying and cyberbullying" provides your teams with the concrete tools to detect, intervene, and prevent. Qualiopi certified program, eligible for funding, suitable for all school levels.