A Year 9 corridor before the bell. Phones out, scrolling, headphones on, mostly silent. Twenty minutes later, the same Year 9 are in a maths lesson with iPads out, working on a number-line tool with their partner. Both moments use technology. They are doing very different work.

A phone showing a social feed at lunch break, alongside an iPad showing a maths reasoning task in a lesson Left: a smartphone with a stack of social media feed cards visible on screen, captioned "Lunch break: a scrolling feed". Right: an iPad showing a Year 9 maths task asking students to place three-quarters on a number line, with two coloured collaborator cursors and the heading "Why does 3/4 sit there?", captioned "Maths lesson: a reasoning task". The two devices illustrate the contrast between phone use that PICRAT cannot classify and iPad use that the framework can describe. 9:42 LUNCH BREAK A scrolling feed Year 9 Maths · Pythagoras +1 Find c. Justify each step. a = 5 b = 12 c = ? Which rule, and why? CO-AUTHORING Sam & Aisha · IA on the grid MATHS LESSON A reasoning task
Same students, twenty minutes apart. Two very different uses of a screen.

The phone-ban question is being asked in every Head's office in the UK and beyond, with new statutory guidance in place and international press reporting on schools that have done it well. I am in favour. The argument is straightforward and it sits inside PICRAT: phones in classrooms occupy the worst cell the framework can describe, when they fit on the grid at all, and removing them makes space for the technology that earns its place.

This is what a clean argument for technology in school looks like, with the phone question settled.

What phones in school actually look like

Most phone use in classrooms does not classify as 'using technology to learn' in any sense PICRAT measures. A student on TikTok during a lesson is consuming an algorithm-curated stream. The technology's role is delivering that stream. The lesson the school is teaching is unaffected by the device in the student's hand.

The honest description of in-class phone use is corridor-level: scrolling between tasks, messaging during instruction, social media before lunch, comparing photos under the desk. None of those moments produce learning. Even Passive Replace is generous; PR at least matches what a paper textbook would have done. Phone use during a lesson sits outside the grid altogether. PICRAT assumes a lesson; phone behaviour during a lesson is something else.

When a school argues that phones could be tools for learning, with the right policies, the practical reality in most classrooms tells a different story. The intent might be PA or IA. The behaviour at the back of the room is reliably consumption-without-purpose. The honest classification is that the cell does not exist on the grid.

Why a ban makes sense

Three reasons.

Attention. Cognitive-load research consistently shows that the presence of a phone, even unused, reduces attention on the task at hand. The phone does not have to be active to take attention. A device that pings has the same cost as a device that vibrates, has the same cost as a device sitting silent in a pocket. Removing the device removes the cost.

Social fabric. The corridor scene of twenty teenagers on phones, none talking, says less about teenagers than about the spaces we put them in. Removing phones returns lunch break and corridor time to actual conversation. That is the social and emotional infrastructure the next decade depends on, and schools are one of the few places that can rebuild it.

The PICRAT argument. A school that does not have a phone ban has muddied technology. It is teaching some lessons with iPads (great), letting students use phones for non-lessons in the same building (less great), sometimes in the same room (problem). The signal is confused. Technology becomes 'the screen', a generic category that includes the iPad in a Year 4 reasoning task and the TikTok feed in the Year 11 corridor. The school cannot make a clean argument about what technology is for, because it is for too many different things at once.

The argument is pro-technology

The phone-ban argument often gets misread as anti-tech. Done well, it is the strongest possible argument for better technology.

The case is straightforward. PICRAT is a framework for being honest about what technology is for and using it meaningfully. A school that bans phones, teaches with iPads, and audits those iPad lessons against the grid has the cleanest possible position: technology in this school is for learning, and we can describe what that learning looks like, by year group, with examples.

A school that allows phones but does not audit iPad lessons has the opposite position. The technology in the building is a tangle of low-value and high-value uses, and the staff cannot disentangle them when a parent or an inspector asks. A phone ban without a PICRAT habit fixes only half the problem; a PICRAT habit without a phone ban runs into the muddied-signal issue every time a Year 11 walks past with headphones in.

Banning phones makes the school's relationship with technology defensible. The two policies, ban the phones and audit the iPads, work together as one position.

What it means for the iPads

If you ban phones, the technology students do use in school must justify itself.

The justification is exactly what PICRAT measures. A PR lesson is replaceable by paper, so the iPad has not earned its place. An IA lesson asks students to do something paper cannot, so the iPad has. A CT lesson asks more, and pays back more, when the substance is right.

This is the conversation a phone ban opens. With phones gone, the remaining technology is purposeful, or it is questionable. There is no neutral technology in the building.

That sharpens planning. A teacher who used to have iPads in five lessons a week, mostly at PR, has to ask whether those lessons need iPads at all. If the answer is no, the lesson moves back to paper. If the answer is yes, the placement on the grid lifts up to IA, where the technology actually pulls its weight.

A department audit at this point is a fast conversation. The question has moved from 'should we use technology' to 'are we using it well', and the second question is the one PICRAT answers.

The signals it sends

A phone ban sends three signals to the school community.

To students

Technology in this building is for learning, and the time we spend with it has to count. The classroom is a different kind of space from the bus or the bedroom, and the technology we use in it follows that different rule.

To staff

You do not have to compete with TikTok in the back row of your lesson. The school has chosen to remove that competition, and your job is to plan technology use that earns its place when it is the only screen in the room.

To parents

When we describe technology use in school, we mean the iPad work the teacher planned, with a placement on the framework grid that we can defend. The work happens in lessons. The phone is not part of that picture, by design.

The third signal matters most. Parent newsletters about technology become believable. The deep-dive answer about technology becomes coherent. The audit conversation in a department becomes possible. A school that lets phones in alongside iPads has none of those things working, because the muddied signal undermines the rest of the argument every time a parent looks at their child's behaviour at the school gate.

What to do tomorrow

Three steps if your school is moving towards a ban.

First, brief staff on the framework before the policy lands. Phones go away because the school is taking technology more seriously. The conversation with staff is about more deliberate use, with sharper planning, on the technology that remains.

Second, audit your iPad lessons within the first half-term post-ban. Most schools find a lot of PR. The conversation about lifting them up the row is now uncluttered by the phone question.

Third, write the new parent paragraph. One paragraph, names two specific lessons by year group, classified, with the audit habit named. The paragraph survives a deep dive and survives a parent who is sceptical the ban was the right call.

If you want the audit done for you on a sample lesson, drop it into Review. The output is the spine of the paragraph and the start of the conversation a department needs to have. The screen-time framing in a sibling post is useful for the parent half of that conversation; the post you are reading is the leadership half.

Ban the phones, audit the iPads — the two policies side by side Left: a smartphone with a blank screen and a padlock symbol, captioned "Ban the phones — out of the building". Right: an iPad showing a Year 9 Pythagoras task with a small PICRAT grid badge in the header (Interactive Amplify cell highlighted) and a green "Placed on Grid" footer, captioned "Audit the iPads — on the grid". The two policies that, together, define a defensible school technology position. SECURED BAN THE PHONES Out of the building Year 9 · Pythagoras Find c. Justify. a b c PLACED ON GRID Interactive Amplify · Audited AUDIT THE iPADS On the grid
Two policies, one position. The phone leaves the building; the iPad earns its placement.
Ban the phones. Audit the iPads.

A phone ban clears space for the technology that earns its place. Once the low-value devices are out of the building, the remaining technology has to do real work. PICRAT is the framework that names that work. The two policies together make the school's position on technology one a Head can defend in a board paper, a parent newsletter, and a deep-dive conversation, with the same vocabulary.

Andy Perryer is the head of digital learning at a group of international schools and the creator of PICRAT Suite. The PICRAT framework was developed by Royce Kimmons, Charles Graham and Richard West in their 2020 paper in the CITE Journal.