Alongside the core domains of reading, mathematics, and science, this week's PISA 2025 release includes results from a newly added assessment domain measured for the first time this cycle: computational problem solving, with an OECD average of 500 points and the highest-performing systems concentrated in East Asia. While the name suggests a purely technical, computing-adjacent skill, the actual construct PISA is measuring, applying structured, logical reasoning to work through an unfamiliar, multi-step problem, overlaps considerably more with analytical and argumentative writing skill than the name alone might suggest.

Computational problem solving, as PISA defines and measures it, asks students to break an unfamiliar problem into manageable steps, identify what information is relevant, and construct a logical path from the problem to a solution, systematically and explicitly. This is, in substance, a close cousin of the structured reasoning that strong argumentative and analytical writing requires: breaking a complex claim into supportable steps, identifying which evidence is genuinely relevant, and constructing a logical, well-organized path from premise to conclusion.

For writing teachers, this new PISA domain, and the international data now available on it for the first time, offers a fresh, if somewhat unexpected, data point worth considering: strong performance on structured, multi-step logical reasoning tasks, as this new PISA measure assesses, likely correlates meaningfully with the same underlying cognitive skill that strong argumentative writing depends on, even though the assessment itself doesn't directly involve writing.

The genuine overlap between computational reasoning and argumentative structure

Both computational problem solving and strong argumentative writing require a student to hold a complex, multi-step structure in mind, identify the genuinely necessary components, sequence them logically, and arrive at a well-supported conclusion. Students who struggle with one of these skills may well be showing symptoms of a shared, underlying difficulty with structured, sequential reasoning, rather than two entirely separate, unrelated skill deficits, which is a useful frame for departments thinking about cross-curricular skill development this year.

• Recognize the genuine overlap between structured computational reasoning and the logical structure strong argumentative writing requires
• Consider whether students struggling with argument structure in writing might benefit from more explicit instruction in breaking problems into sequential, logical steps generally
• Watch for more detailed analysis of this newly introduced PISA domain as more research and comparison data becomes available over time
• Explore potential cross-curricular connections between computational thinking instruction and argumentative writing structure instruction
• Treat this new domain as an interesting, still-developing data point rather than a fully settled measure, given it's only been assessed for the first time this cycle

Why this new domain is worth watching over future PISA cycles

Since this is the first cycle to measure computational problem solving, meaningful trend data and deeper research on how this new measure relates to reading and writing performance specifically will only become available as future cycles and follow-up research accumulate. For now, its introduction is worth noting as a genuinely relevant data point for writing instruction, even though it wasn't explicitly designed with writing in mind, given how closely the underlying reasoning skill it targets overlaps with what strong argumentative writing requires.

Writing departments interested in cross-curricular connections have a genuine opportunity here: partnering with computer science or math colleagues around this shared underlying skill, structured, sequential, logical reasoning, could offer a fresh, evidence-informed angle for reinforcing argumentative writing structure through an unexpected but genuinely related discipline.

An unexpected but genuinely relevant addition to this year's data

This new PISA domain is a reminder that skills often categorized as entirely separate, computational thinking and argumentative writing, share more underlying cognitive structure than their surface labels suggest. As this measure develops across future PISA cycles, it's worth writing departments watching, since the shared reasoning skill at its core is directly relevant to what strong analytical and argumentative writing instruction is already trying to build.