The Problem With Screens

Why screens are often inferior to analog methods when learning is the goal

NOTE: The following is summarized and distilled from the The Digital Delusion: How Classroom Technology Harms Our Kids' Learning - And How To Help Them Thrive Again by Jared Cooney Horvath, Phd MEd

Attention Fragmentation

Screens introduce powerful obstacles to a key requirement for learning to happen - attention.

Despite popular belief, humans cannot multi-task. We can only switch between tasks, and every switch weakens focus, accuracy, and memory. Laptops and tablets are designed for multitasking and efficiency - not learning. Notifications and switching between open tabs create constant distractions and interrupt the focus needed for deep learning.

Because students mostly use devices for entertainment, asking them to focus on the same screen for learning is asking them to fight a never-ending battle against deeply ingrained habits.

“Digital technologies so often aren’t used for learning that giving students a laptop, tablet, or other multi-function device places a large (and unnecessary) obstacle between the student and the desired outcome.

In order to effectively learn while using an unlocked, internet-connected multi-function digital device, students must expend a great deal of cognitive effort battling impulses that they’ve spent years honing - a battle they lose more often than not”

- Jared Cooney Horvath, The Digital Delusion

Reading on paper vs. a screen

Research consistently shows that comprehension improves when reading on paper versus a screen. On screens, we skim. We scroll for landmarks rather than reading for meaning. If deep comprehension and genuine learning are the goal, reading on paper wins out.

In a synthesis of nearly 400 meta-analyses covering 21,000+ studies finds that reading comprehension on screens underperforms paper with an effect size of –0.15 overall, and –0.29 for expository text (the kind of reading that builds knowledge).¹ Because screens lack the spatial anchoring that supports memory formation, readers lose the sense of where in a physical document a piece of information lives.

Handwriting vs. typing

Handwriting activates more neural circuits than typing. The physical act of forming letters by hand encodes information more deeply, leading to improved retention. Because you can't write by hand as fast as someone speaks, handwriting notes requires active synthesis of the information. Students must listen and understand in real time. Typing turns note-taking into a practice of dictation and bypasses the cognitive work that makes information stick.

Handwriting also builds fine motor skills directly linked to reading circuits in the brain, supporting literacy in a way that typing cannot replicate.

For more info: Edutopia, Why Writing by Hand Beats Typing (in 6 Charts)

Transfer

Transfer is the ability to apply what you’ve learned in one context to new or different situations. It’s often considered the true goal of learning. But where and how you learn shapes how well you can use that knowledge later. Context matters.

The problem with screen-based learning is that it offers a very narrow context for learning - screen, keyboard, user-interface. And it is a big reason why apps like Duolingo fail to produce fluent speakers in the real world.

The direction of learning also matters when it comes to transfer:

Subtractive transfer: Learn a complex skill first, then move to a simpler one. You can drop skills you don’t need. Example: Moving from manual to automatic driving
Additive transfer: Learn a simple skill first, then move to a more complex one. You need to learn new skills. Example: Moving from automatic to manual driving

Digital contexts are often so frictionless and narrow that the skills built on a screen are not easily transferrable to harder, real-world contexts.

"The very fact that digital tools reduce effort means the skills they promote tend to be shallow. Accordingly, when students try to move these skills into more complex, real-world setting, they face the challenge of additive transfer: a hurdle most are unprepared to clear."

- Jared Cooney Horvath, The Digital Delusion

1 Horvath, J. C. (2025). The digital delusion: How classroom technology harms our kids' learning—and how to help them thrive again. LME Global. [299 -302]