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VAR in Football Investigation

VAR in Football Investigation

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Was that goal offside? It's the argument every football fan loves to have, and it's also real science. In this free investigation, students step into the linesman's shoes, judge real offside calls for themselves, and discover how easily the human eye is fooled. Then they investigate why -- and whether the technology really does any better.

Along the way they put core physics to work -- speed, motion, and the measurement of time and distance -- and tackle uncertainty head-on, working out the "zone of uncertainty" a sprinting player creates in the split-second between two video frames. It applies and deepens content students have already met, in a context they actually care about, so it consolidates the curriculum rather than taking time from it.

It also builds the 'Working Scientifically' skills that count at GCSE: designing experiments, handling uncertainty, evaluating claims, analysing data and constructing evidence-based arguments. And because students plan and run a whole investigation rather than follow a recipe, they develop the grasp of how enquiry works that pays off in AO3 exam questions set in unfamiliar practical contexts -- where marks are hardest won.

Everyone starts from the same challenge -- how accurately can anyone judge offside? -- then follows one of three pathways, pitched at different levels of structure so you can match it to your class:

  • Investigation A — Psychology of judging offside: fully structured, with a complete method to follow (reaction time and the "flash-lag" illusion)
  • Investigation B — Video analysis: partly structured to adapt — students run their own VAR with free software
  • Investigation C — Pitch factors: open-ended, for students to design themselves

It's easy to run and quick to prepare: standard classroom resources plus some free software, in a single lesson or stretched into a mini-project — your call. Everything's done for you:

  • Presentation: introduces the challenge, sparks discussion and guides students through each step
  • Teacher & Technician Guide: running notes for the presentation and every pathway, plus full equipment lists

Free to download, use and adapt. No scheme of work or special training required.

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Q&A

For the Year 7 Mastery Practice book:

For the Y9/GCSE Mastery Practice Book:

It was written to help year 7 students learn to transfer the scientific knowledge to unfamiliar situation. It can also be used by students in other years to improve their understanding of the fundamental concepts. Learning to apply is what will give students access to the 60% of marks at GCSE that demand more than recalling content. The book uses a research-based approach to teach students how to solve different types of problems.

The Practice Book has a chapter on each unit in the year 7 curriculum, based on a 5-year curriculum and AQA's KS3 Science Syllabus. Download the sample material to see exactly what concepts and types of problems are included.

The first strategy studente need to learn is to evaluate the problem and what knowledge is needed to solve it. 'Detect' simulates how an expert looks at a question. They make sense of the situation, look beyond the superficial details to find the deep structure This allows them to recognise this as an example of a problem type they have seen before, and recall the organised information they need to solve - key concepts. It ensures that students avoid their inclination to just look at the keywords, and dive in risking misunderstanding the situation. Detect is broken down into smaller steps, usually: draw a diagram, show values, identify unknown, decide the concept

This encourages students to bring into their working memory all their existing knowledge, externalise it on paper (to reduce working memory demands), and then home in on what's relevant to solving the problem.

The third stage of the problem solving strategy is the actual solution process using the knowledge from Recall.The Solve starts by showing how to use the knowledge from Recall and models a step by step process of moving towards a solution for the problem.We teach students how to write answers scientifically, using a variety of structures like claim-evidence-reasoning, and problem-solution, and cause-effect.

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