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How Telefónica trained its employees in new skills with a large-scale reskilling plan
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May 1, 2026
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Learning by doing is a training methodology based on direct practice: professionals develop skills by applying them in real or simulated situations, not just by listening to or reading about them. It is the approach that best explains why we retain 75% of what we do compared to just 5% of what we hear, according to the NTL Institute.
In a business environment shaped by digitalisation, talent turnover and the ongoing need for reskilling, learning by doing has become one of the most evidence-backed methodologies for real skills development. According to McKinsey, most corporate training initiatives fail precisely because they do not combine understanding with hands-on practice. In this article, we explore what it is, how it works and, above all, how to implement it for real impact in your organisation.
Although many companies have yet to fully explore the path of experiential learning, this is far from a new methodology. Albert Einstein captured it well: “Learning is experience, everything else is just information”. And before him, Aristotle put it even more directly: “What we have to learn to do, we learn by doing”.
In the early twentieth century, theorists such as John Dewey, Jean Piaget and Kurt Lewin championed active education, arguing that learning “occurs most effectively when it results from meaningful experiences”. Their ideas were put into practice by David Kolb, professor at Case Western Reserve University, who developed the experiential learning model that remains a global reference today. Kolb introduced games, simulations and roleplays, consistently achieving better attention and retention outcomes than traditional methods.
The result was the Kolb Cycle: a four-stage model describing how human beings learn from experience naturally. It is not a linear process but a continuous, self-reinforcing cycle. Research from leading academic institutions on e-learning innovation has validated the application of this cycle in corporate training contexts, with consistently positive results in retention and workplace transfer.
From a corporate perspective, McKinsey highlights that experiential learning is the element most often missing from organisational change programmes: theory without practice does not change behaviour, and without behaviour change there is no business impact.
David Kolb’s model describes learning as a four-stage cycle that repeats and refines itself continuously. According to WGU, this cycle is one of the five learning theories with the greatest demonstrated impact in educational and training contexts:
In corporate training, this cycle takes shape through game-based learning exercises, simulations, roleplays, real-world projects and structured feedback. The key is to ensure that all four stages of the cycle are present in the programme design — not just the first one.
The data is clear: we retain just 5% of what we hear, compared to 75% of what we practise. These figures come from the cone of experience model developed by Edgar Dale and later expanded by the NTL Institute of Applied Behavioral Science, which measured retention rates across different types of learning activity.
The direct implication for corporate training is that passive methods — lectures, readings, videos without interaction — have limited effectiveness when the goal is to change behaviours or develop competencies. This is precisely why learning loops — structured cycles of repeated practice — are so important: retention improves exponentially when practice is distributed over time and repeated across different contexts.
Beyond practice itself, another key mechanism is anticipatory mimicry: when we learn something knowing that we will later have to apply or explain it, the brain processes the information at a deeper level. This is why exercises with real stakes — projects, presentations, assessed simulations — produce more robust learning than low-consequence exercises.
Not all practice is learning by doing. For a training experience to be truly meaningful, it must meet a set of conditions that go beyond simply “doing something”. These are the elements that determine whether an activity generates real learning or just activity:
Role-based learning is one of the modalities that best implements these principles: each employee learns from the specific context of their role, using situations drawn directly from their professional day-to-day.
Learning by doing does not replace all training methods, but it does make the difference when the goal is to develop applicable competencies. This table compares the four most common approaches in corporate training:
| Method | Estimated retention | Best suited for |
|---|---|---|
| Learning by doing | 75% | Power skills, leadership, applied digital competencies |
| Traditional classroom training | 5–20% | Declarative knowledge, compliance, initial onboarding |
| Standard e-learning (video) | 10–30% | Theoretical concepts, processes, large-scale training |
| Microlearning | 40–60% | Knowledge reinforcement, quick update modules |
Implementing learning by doing effectively requires instructional design that goes beyond simply “adding practical exercises” to an existing programme. These are the key steps for a genuine implementation:
For employee-generated content initiatives, learning by doing also plays a key role: professionals learn more when they are the ones who must demonstrate, explain or teach what they have learned to others.
One of the most frequent mistakes in implementing learning by doing is confusing it with “unstructured learning”. Practice without instructional design does not generate learning — it generates frustration or, at best, accidental learning. These are the most common pitfalls:
McKinsey argues that the organisations that turn experiential learning into a competitive advantage are those that design systems for continuous learning, not one-off training events. The key lies in building a culture where learning by doing is part of the normal flow of work.
Telefónica is a compelling example of how learning by doing can drive large-scale reskilling in a context of deep digital transformation. Faced with the need to upskill more than 18,000 employees in areas such as cybersecurity, Big Data and cloud, the company partnered with isEazy to build a training ecosystem based on agile content, dynamic learning experiences and practice-oriented knowledge transfer. The combination of hands-on methodology, specialised content and cutting-edge technology accelerated the acquisition of new skills and supported the digital transformation of its internal talent.
Find out how they did it →
At isEazy Skills, we use the learning by doing methodology as the primary approach to talent development. Every course in the catalogue is designed so that employees face real practical situations, following Kolb’s full cycle: experience, reflection, conceptualisation and active experimentation.
Features
Advantages
Ratings
Classic – 50-70 minute courses featuring an interactive structure with high-impact videos and multimedia resources.
Essential Facts – 15-20 minute short courses with focused content designed to address specific problems in a short timeframe.
Podcast training – for learning anytime, anywhere.
Features
Classic – 50-70 minute courses featuring an interactive structure with high-impact videos and multimedia resources.
Essential Facts – 15-20 minute short courses with focused content designed to address specific problems in a short timeframe.
Podcast training – for learning anytime, anywhere.
Advantages
Ratings
The catalogue includes programmes covering power skills (leadership, communication, critical thinking, time management), digital skills and cross-functional competencies for teams at every level. Each course combines microlearning, interactive exercises, decision-making scenarios and immediate feedback, delivering a learning experience specifically designed for the professional environment.
If you want to offer training that genuinely changes behaviours, explore the full catalogue of practical courses or request an isEazy Skills demo.
Continuous skills development is also one of the key drivers of the soft skills trends shaping the L&D agenda in 2024–2025: organisations that master learning by doing hold a structural advantage when it comes to adapting to change.
Learning by doing is a practice-based learning methodology in which professionals develop skills by applying them in real or simulated situations, rather than simply listening to or reading about them. Its effectiveness has a solid neurological foundation: according to the NTL Institute, we retain just 5% of what we hear, compared to 75% of what we actually do. This is because active practice strengthens synaptic connections, facilitates the transfer of knowledge to the workplace and turns what has been learned into a lasting habit. In corporate environments, this methodology is particularly powerful because it reduces the time between training and real-world application, accelerating the impact on performance.
isEazy Skills integrates learning by doing as the central focus of all its courses. Rather than offering theoretical content to memorise, programmes are designed so that each employee faces practical situations from their daily work: communication scenarios, leadership exercises, negotiation challenges and decision-making simulations. Courses combine microlearning, real-world professional examples and repeated practice with immediate feedback, following the four stages of Kolb’s cycle. The result is that the habits acquired transfer naturally to the workplace, with a measurable impact on team skills. You can explore the full catalogue of practical courses at isEazy Skills.
The fundamental difference is that learning by doing makes the learner an active protagonist of the process, not a passive recipient of information. While traditional training (lectures, readings, explanatory videos) prioritises the transmission of concepts, learning by doing prioritises their application. In practice, this means exercises that simulate real situations, projects with tangible outcomes and immediate feedback on performance. Compared to standard e-learning, it delivers greater retention and transfer to the workplace. Compared to microlearning, it offers greater depth in the development of complex skills such as leadership, communication or decision-making.
Learning by doing is especially effective for developing skills that require repeated practice in varied contexts: power skills or soft skills (communication, leadership, critical thinking, time management, teamwork) and applied digital skills (tool use, data analysis, project management). It is also highly effective for technical competencies that need to be practised before being applied, such as onboarding for new processes or compliance training. For the transfer of specific declarative knowledge such as regulations or product data, it can be more efficiently complemented with microlearning.