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FREE Diagnostic Maths Test For Primary And Secondary Schools And How To Create Your Own

Diagnostic maths tests are designed to identify students’ misconceptions or knowledge gaps. They are used to inform teachers’ decisions about the next stage of a lesson or programme of study.

Studies have shown these diagnostic tests to be one of the top three most effective techniques to improve student achievement (Wisniewski, Zierer, and Hattie). But their effectiveness is dependent on how and when the test is delivered and how the results are used. This guide will help you to understand how to use them to improve student learning, as well as share free diagnostic maths tests for primary and secondary for teachers to use.

What are diagnostic maths tests?

Diagnostic maths tests are a type of formative assessment or assessment for learning that are used to improve student learning. Unlike summative assessments that are used to measure learning and track progress, a diagnostic assessment allows teachers to understand where knowledge gaps lie among students once a lesson has been taught. The goal is to provide targeted and personalised interventions to improve academic achievement. 

Read more: Formative and summative assessment

Most often, maths diagnostic tests are multiple choice questions set at a level appropriate for the student’s age and ability. A test should take no more than ten seconds for a student to complete, which means it can be used regularly throughout every lesson, providing frequent and detailed feedback to the teacher from every single pupil. 

At Third Space Learning, all students sit a diagnostic maths test called ‘Mission Zero’ before they start their tutoring with us. This is a carefully designed multiple choice test where each incorrect answer reveals a specific misconception. It’s designed so that it should not be possible for a student to answer the question correctly while still holding a misconception. This means ‘Mission Zero’ diagnoses not only gaps in students’ learning but also the specific misconceptions that are holding them back.

diagnostic maths solve and calculate
Third Space Learning’s diagnostic maths test, Mission Zero

However, diagnostic tools take on many different formats, such as: 

Read more: Effective questioning
End of Year Diagnostic Maths Test Pack (Year 1-5)

End of Year Diagnostic Maths Test Pack (Year 1-5)

This set of diagnostic maths tests provides an opportunity to assess pupils against the core objectives which they should be secure with by the end of the year and to inform your planning for the start of the Autumn term. Includes gap analysis template.

How do diagnostic maths tests improve learner outcomes?

Students’ attainment improves when the results of a diagnostic maths assessment are used by teachers to identify when intervention is required and which topics should form the focus of that intervention. That is because by providing teachers with feedback about the effectiveness of their teaching methods and what learning has occurred, diagnostic maths tests can help teachers make informed decisions about how to proceed with learning.  

Read more: Adaptive teaching

However, to capitalise on the effectiveness of diagnostic assessments, these tests should make it clear to the teacher what each incorrect answer reveals about their students’ understanding. Answer sheets should reveal details about students’ misconceptions, which students have given an incorrect answer, and why they have made a mistake. This has a powerful impact on teachers’ ability to make adjustments to the lesson and directly address students’ misconceptions to improve their learning and attainment.

Students can also benefit from these results as they receive feedback on their understanding, allowing them to become more reflective and self-regulated.

How diagnostic maths tests can lead to better pupil progress

Third Space Learning’s online one to one maths tutoring is guided by diagnostic assessment. Each and every pupil’s learning journey is personalised to their specific learning gaps and misconceptions through ‘Mission Zero’.

1. Diagnostic questions are carefully designed

Our assessments are carefully designed by former teachers and pedagogy experts. Each multiple choice question includes one correct answer and three distractors. Each distractor corresponds to a misconception a pupil may have.

diagnostic maths quiz
Third Space Learning’s diagnostic assessment for GCSE

All pupils on our programmes, from KS2-KS4, sit this 30 minute initial diagnostic assessment prior to their first tutoring session as this helps to inform their personalised programme of lessons.

2. One question per learning objective on the programme

Each of the questions asked in the initial assessment relates to a single Learning Objective, mapped to each of the 500+ Learning Objectives in our online intervention curriculum.

3. Diagnostic maths test provides a benchmark

These initial diagnostic assessments additionally help to measure the impact of tutoring throughout the term. We compare the answers students give with post-session questions and their end-of-term assessment. Teachers have on-demand access to all student reports, including to the diagnostic maths test. 

4. Continuous assessment for learning within each lesson

However, our use of diagnostic maths assessment doesn’t end with pupils’ initial assessment. ​​ Personalised learning goes beyond just selecting the right lesson for the right pupil; pupils also need to be guided through each lesson at the appropriate pitch and pace.

That’s why tutors are trained to ask questions throughout the session to understand each pupil’s understanding of the concept they’re learning and adapt their teaching accordingly. This gives pupils the best opportunity to make progress.

How to create a effective diagnostic maths test for your own maths lessons

There are three important areas for consideration when creating effective diagnostic tests for maths lessons: 

  • Effective Design
  • Classroom Culture
  • Professional Development
  1. Effective design of a diagnostic maths test

The tests should be well-designed and tailored to the individual needs of the class. 

Multiple choice questions are usually the most effective form with questions purposely designed to make this happen if they hold any misconceptions. Each incorrect answer for the multiple choice question should relate to a different maths misconception and it should not be possible for a student to select the correct answer while holding a misconception.  

  1. A classroom culture that builds a low stakes environment with freedom to make mistakes

Students will inevitably give incorrect answers. So there needs to be a classroom culture that allows students to feel comfortable making mistakes and a shared growth mindset that incorrect answers represent an opportunity to improve learning. 

Diagnostic questions will be counterproductive if they create anxiety as this adds to students’ cognitive load and makes it more difficult for them to learn new information. When teachers refer to incorrect answers as misconceptions, it can help to lessen the anxiety or blame felt by students.  

  1. Professional development 

The most experienced teachers are likely to find it easier to identify the most common misconceptions associated with each topic as they will have encountered each one many times. This knowledge makes it easier to set the questions for the assessment. This is something that will develop naturally over time as a teacher’s experience grows but can be supported with resource sharing and professional development

Sharing best practices is one of the most effective forms of teacher professional development.  There are two ways in which sharing best practices can support colleagues improve students’ learning through the use of diagnostic assessments:

  • Sharing premade diagnostic questions
  • Sharing strategies and resources to successfully challenge students’ misconceptions

Third Space Learning has created diagnostic questions and free resources to support teachers’ intervention strategies that can be downloaded below. However, it is not enough to simply identify students’ misconceptions. Teachers need to develop the skills required to challenge and correct them.  

Download your FREE diagnostic maths tests

Even the most experienced maths teachers can find it difficult to create effective diagnostic maths tests. Third Space Learning has created a bank of free resources for teachers that include diagnostic maths tests that are suitable for students from key stage 2 to key stage 4.  

Free diagnostic maths test for primary school and SATs

Misconceptions are a natural part of the learning process in mathematics, particularly for primary school-aged pupils. Identifying and challenging these misconceptions when they occur will prevent them from becoming ingrained and detrimental to learning in secondary school.

The free diagnostic assessments from Third Space Learning have been designed as pairs to be used at the start and end of a unit of study. 

  • The pre-test is an effective baseline assessment to inform teachers about their students’ prior knowledge and misconceptions. This allows teachers to deliver the subsequent lessons at an appropriate level and without including any unnecessary content that has been previously learnt. 
  • The post-topic diagnostic test can be used to assess whether the learning outcomes have been successfully met, whether any of the topics need to be retaught, or if any students need further support.  

Each of the diagnostic maths assessments includes a detailed mark scheme that not only indicates the correct answer but also explains the distractor answers and misconceptions.

Download yours free here: Number and Place Value Diagnostic Assessments 

You can download further diagnostic assessments with a premium subscription from the Third Space Learning online maths hub.

Free diagnostic maths test for secondary school and GCSE 

You can download over 50 GCSE diagnostic maths tests from this collection of Diagnostic Questions.

Each diagnostic maths test contains twenty multiple-choice questions that directly relate to the key skills required to master the GCSE topics. The incorrect answers have all been carefully selected to highlight a specific misconception, meaning that subsequent teaching can be targeted to improve learning and understanding most efficiently. 

Here are a few examples, but you can see the full selection in our Secondary Resource Library across Number, Probability, Geometry, Ratio and Proportion and Statistics:

Diagnostic maths tests FAQs

What is a diagnostic maths test?

A diagnostic maths test is used to identify students’ misconceptions so that learning activities or instruction can be adapted to best meet students’ needs.

What are the key features of a multiple-choice diagnostic maths question?

A multiple-choice diagnostic maths question should have one correct answer that can only be answered correctly if a student does not hold any misconceptions.  Each incorrect answer should be designed to reveal a different misconception.

What is the difference between summative and formative assessment?

The purpose of formative assessments, such as diagnostic questions, are designed to improve learning by giving teachers information that can be used to adapt their teaching.  Summative assessments are designed to provide information about what learning has occurred, such as an end-of-topic test.

Do you have students who need extra support in maths?
Every week Third Space Learning’s maths specialist tutors support thousands of students across hundreds of schools with weekly online 1-to-1 lessons and maths interventions designed to address learning gaps and boost progress.

Since 2013 we’ve helped over 150,000 primary and secondary students become more confident, able mathematicians. Learn more or request a personalised quote for your school to speak to us about your school’s needs and how we can help.

Subsidised one to one maths tutoring from the UK’s most affordable DfE-approved one to one tutoring provider.

Zoe Benjamin
Zoe Benjamin
Zoe is a secondary maths teacher with responsibility for whole-school teaching and learning. She has previously been Head of Maths in a secondary school and international school. She now enjoys studying the science of learning and writing blog posts for Third Space Learning.
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End of Year Diagnostic Maths Test Pack (Year 1-5)

End of Year Diagnostic Maths Test Pack (Year 1-5)

This set of diagnostic maths tests provides an opportunity to assess pupils against the core objectives which they should be secure with by the end of the year and to inform your planning for the start of the Autumn term. Includes gap analysis template.

Download FREE Now!

End of Year Diagnostic Maths Test Pack (Year 1-5)

Downloadable resource

This set of diagnostic maths tests provides an opportunity to assess pupils against the core objectives which they should be secure with by the end of the year and to inform your planning for the start of the Autumn term. Includes gap analysis template.

Download FREE Now!
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FREE Guide to Hands on Manipulatives

Download our free guide to manipulatives that you can use in the maths classroom.

Includes 15 of the best concrete resources every KS1 and KS2 classroom should have.

Download free