Anger Thermometer for Kids: Catch Outbursts Before They Start (Free PDF)
If you’re the parent of a child who struggles with anger or other behavioural issues, you’ll know how quickly things can escalate. One moment everything is fine, and the next you’re in the middle of a full-blown outburst, wondering what on earth just happened.
The truth is, by the time anger reaches that point, there’s very little anyone can do. What really helps is catching it earlier, when your child still has enough awareness to make a different choice. That’s exactly what an anger thermometer is designed to do, and I’ve created a free printable version you can start using with your child today.
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What Is an Anger Thermometer – And Why Does It Work?
An anger thermometer is a simple, evidence-based anger management tool that helps children track their emotional state and take action before anger explodes. It works like a colour-coded visual scale, from the green zone (calm) to the red zone (overwhelmed), helping children identify feelings and support emotional regulation early, rather than after an outburst has already happened.
As a clinical child psychologist with over 20 years of experience and Clinical Director of Everlief, one of the UK’s largest child psychology clinics, I’ve used this tool with a huge number of families. When it’s introduced thoughtfully and personalised to the child, I’ve seen it make a real difference – children who use it regularly tend to have fewer outbursts, and start to feel more in control of their own emotions.
Why Visuals Work Better Than Words
Children – especially those who are neurodivergent – often struggle to explain their emotions. But they can often point to how they feel in their bodies – the physical sensations that come with rising anger. The anger thermometer helps them connect those cues to what’s going on emotionally, building body awareness and showing them they have options. This process of labelling emotions – putting words to physical feelings – is one of the key reasons the tool works so well.
Spotting Anger Before It Escalates
The key is recognising the yellow zone – the early signs like clenched fists, a racing heart, or “buzzy” energy. These are anger warning signs that anger symptoms are building. Once they can name those signals, children are far more likely to choose calming actions before things escalate into the red zone.
How to Use Your Anger Thermometer at Home
You don’t need to create your own. I’ve designed a free printable anger thermometer PDF template that includes a ready-made chart, and guidance to personalise it for your child.
At my clinic, Everlief, we’ve seen this approach work for children across a range of ages and needs – from autistic children who need concrete visuals, to children with ADHD who benefit from movement-based strategies.
Use It During a Calm Moment
Choose a quiet, safe time to introduce the thermometer. Keep it light and curious:
“I found this thermometer that shows how our feelings build up. I thought we could try it out together.”
Stick it somewhere visible, like the fridge or bedroom wall, and refer to it often:
“Hmm, I wonder if you’re in the yellow right now. What might help?”
Case Study – Feelings Thermometer: Angus, Age 7
In the first example, seven year old Angus has rated his anger level as a 5 on the 10-point scale.
On his personalised anger management scale, a 5 means he is getting easily frustrated.
He feels “fizzy” – a physical sensation that helps build his body awareness of rising anger.
After talking it through with his dad, Angus notices that at this level he starts kicking things, ripping up paper and shouting out in class. He might deliberately annoy others to get a reaction, like flicking paper at them.
What helps is when his teacher notices these small behaviours and gives the whole class a movement break to release pent-up emotions. Angus then moves back down the anger scale to a 1 or a 2.
Ana’s Anger Thermometer
In my second example, thirteen year old Ana regularly rates her levels of anger.
On this occasion she reflects on an anger trigger that caused a “level 9” on the anger scale.
Someone deliberately tripped her up in the school corridor. Ana remembers that at level 9 she “snaps”. She ran after the other student, grabbed them by the hair and tried to wrestle them to the floor. For this, both students got in big trouble.
Ana realises that she doesn’t want to get to a level 9 in the future.
She realises she was actually already at a level 5 because she finds corridors noisy and stressful – one of her regular anger triggers.
She decided that in future she would take a different route to her next class.
Sammy’s Emotion Thermometer
My free printable emotion thermometer can be useful for older teens and young adults too.
In my third example, 17 year old Sammy reflects on her anger at being told by her parents that she can’t go to a party tonight.
Her anger level is a 6 on her emotion thermometer.
She is seething inside but she knows that if she smashes up her room (which is what she feels like doing) it will make the situation worse.
She still has some control.
At a level 6 on the anger scale, Sammy knows she has to disperse some of her anger.
She goes out and sprints for a mile along her usual running route. Her aim is to get more in control so that she can return and negotiate more calmly with her parents.
Common Mistakes Parents Make (And How to Avoid Them)
Even with a helpful tool like the anger thermometer, it’s easy to fall into traps that reduce its effectiveness. Here are two of the most common ones I see in my clinical practice:
Using It During an Outburst
Children can’t learn when they’re in a state of emotional overload. That’s why the thermometer should always be used preventatively, not reactively. Introduce it during peaceful times, and practice using it regularly so it becomes second nature.
Treating It Like a Behaviour Chart
Here’s a common myth:
“My child just needs to learn to calm down.”
But by the time they’re in the red zone, their thinking brain is offline. What they really need is the ability to notice and respond earlier. That’s where the anger thermometer shines – it teaches children to tune in before they reach boiling point.
This isn’t about control. It’s about emotional literacy, self-awareness, and co-regulation.
Will the Anger Thermometer Work for Neurodivergent Children?
In my two decades supporting children through the NHS and now at Everlief, I’ve seen the anger thermometer work beautifully for neurodivergent children – with a few simple tweaks:
For autistic children, simplify the language, use emojis or icons, and link it to sensory strategies or routines.
For children with ADHD, emphasise body awareness and offer movement-based calming options like trampolining or stretching.
This tool adapts to your child’s unique profile. It can also help build social awareness in group settings like school, where children are often expected to manage their emotions independently. When you personalise it together – and use positive reinforcement when your child engages with it well – they’ll be more likely to benefit from it long-term.
The Next Step
Supporting a child who struggles with anger is genuinely exhausting, and I say that as both a psychologist and a parent. But small, practical tools, used consistently, can lead to real change over time and help reduce outbursts.
The anger thermometer is a great place to start. Print it off, sit down with your child during a calm moment, and fill it in together. You may be surprised by how much your child already knows about their own anger, they just haven’t had a way to express it before.
If you’d like to go further, my short course End Emotional Outbursts gives you a step-by-step approach to understanding and responding to your child’s anger, with effective coping strategies and practical techniques. It’s designed for parents who want to feel more confident and more equipped when anger becomes a problem at home.
Dr Lucy Russell is a UK clinical psychologist and Clinical Director of Everlief Child Psychology. She qualified as a clinical psychologist from Oxford University in 2005 and worked in the National Health Service for many years before moving fully into her leadership and writing roles.
In 2019 Lucy launched They Are The Future, a support website for parents of school-aged children. Through TATF Lucy is passionate about giving practical, manageable strategies to parents and children who may otherwise struggle to find the support they need.
Lucy lives with her family, rescue cats and dog, and also fosters cats through a local animal welfare charity. She loves singing in a vocal harmony group and spending time in nature.
