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Help your students go further

Identify where they go wrong

Each Diagnostic Question tells you what each student gets wrong and why they do.

Measure long-term retention

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Pick from a set of Diagnostic Quizzes that mark themselves. Spend your time making a difference to your students.

Diagnostic Question Example

Identify what your students don't understand and why

Diagnostic Questions are designed such that each incorrect answer reveals a unique misconception. Knowing each student's misconceptions lets you support them better. Let's look at an example:

Diagnostic Question Example



Subtract multiple-digit integers mentally.


May suggest that they understands that angles on a straight line must add up to 180°, but they used the wrong angle to calculate P.


Resource to illustrate the relationship between angles on a straight line, followed by exercises designed to help them develop fluency in this skill.




Find missing angles using angles on a straight line.


May be the result of the student muddling up their angle facts, mistakenly thinking this is an example of opposite angles  being equal.


Resource to illustrate the relationship between angles on a straight line. Exercise where they are challenged to match up an assortment of diagrams with the angle fact they represent.




Subtract multiple-digit integers mentally.


The answer is correct! There are no apparent misconceptions.


The student is ready to tackle more challenging exercises in angles and geometry.




Find missing angles using angles on a straight line.


May imply that the student is aware of the concept that angles on a straight line must add up to 180°, but has included all visible angles in their calculations.


Resource to illustrate the relationship between angles on a straight line. Selection of examples and non-examples of angles on a straight line.

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“Self-marking, amazing insights, allows me to build future lessons, great for report writing and parent interviews, so much more to say but Origin is on in Australia right now so need to get back to it.”

Mrs Harris

Sydney, Australia

"Excellent platform that is intuitive to use both for the pupils and the teachers with superb ability to quickly analyse the result of work and provide clear strengths and weaknesses."


Glasgow, United Kingdom

"Both the students as well as I absolutely love the fact that it is easily set up, accessible, really meaningful to their learning and that they can see their progress as well as which areas I need to re-visit with them. A fantastic tool."


Winchester, United Kingdom

“It saved me time. I just wanted to get my wheel green. I didn’t have to waste time doing things I knew.”

“My revision for maths was spread out for me. I wasn’t cramming at the end.”

“My younger brother was having difficulty with his maths so I set him up an account and got him to do certain questions. He’s doing much better now.”

Maths is not her favourite subject and we didn’t really know how she was going to get along with the class. As soon as the class started, she was so excited. She was laughing and telling us how fun it was, so I was really impressed. She asked us today when she was going to have another class.



At first when I told her about the lesson, she was quite dismissive and was like oh no, not more work. But after the lesson she was really happy that she’d learnt something that she can apply to her schoolwork and when I mentioned another lesson, she was quite happy to do it.



I think the chat format was actually better. I thought it was clear and not using terminology that was too advanced, but equally not using too baby-ish language. The terminology used was spot on for her.



Craig Bartion, Eedi Co-founder

"For 8 years, I’ve worked with teachers and parents around the world to make the most effective use of their teaching time and homework."

Craig Barton, Co-founder of Eedi

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We help children learn and those who support them


Parents use Eedi at home to help their children build confidence and skills in maths.


Teachers use Eedi to support students by uncovering what they don't understand and why.