NULLBIT
NULLBIT
EdTech Case Study

Digital Educational Content

Transforming education with interactive digital textbooks for the 21st century

EdTechInteractive Contente-ŠkoleUI/UX
Year

2023

Duration

12 months

Industry

Education / EdTech

Digital Educational Content
Starting position

Starting position

Starting position

  • Digital curriculum coverage

    Pre-program nationwide baseline

    0 %
  • Format in active rotation

    Print textbooks only
  • Interactive modules available

    No standardized digital library existed

    0
  • Schools with classroom-grade tablets

    Hardware deployed by e-Škole program in parallel

    Limited

Market size

≈ 2,000 schools / ≈ 470,000 students

Primary & secondary schools in Croatia

Scope: TAM (national)Source: Croatian Ministry of Science & Education + Bureau of Statistics

Approx. budget

NDA

200,000 – 999,999 €

Budget breakdown

Curriculum mapping & pedagogical strategy20%
Frontend engineering (React / TypeScript)30%
Interactive media & multimedia production35%
QA, accessibility & classroom testing15%

Budget bucket per Clutch.co project cost category. Part of EU-funded e-Škole program; exact figures under NDA.

52-week development cycle

52 weeks

  1. 1

    Weeks 1–8

    Curriculum mapping, pedagogical analysis & module taxonomy

  2. 2

    Weeks 9–24

    UI/UX, modular architecture & first subject packages

  3. 3

    Weeks 25–40

    Content production, interactive elements & multi-grade widening

  4. 4

    Weeks 41–52

    Pilot deployment, iteration & scale-out across 800+ schools

The Goal

Digitizing Education Nationwide

The goal was to create digital textbooks used throughout the Republic of Croatia to replace traditional books. The content needed to be interactive, engaging, and accessible on tablets for students of all ages.

Replace traditional textbooks with digital alternatives

Cover complete curriculum for all subjects and grades

Create modular content usable standalone or as complete courses

Ensure accessibility across all Croatian schools

Our Solution

Modular Interactive Learning

We developed digital educational content aligned with the curriculum for each subject and grade. Content is structured modularly—several modules cover the curriculum of each grade, with each module usable independently.

Curriculum-Aligned Content

Content covering the complete curriculum for individual subjects and cross-curricular topics per grade.

Modular Architecture

Flexible modular design allowing complete grade coverage or standalone module usage.

Interactive Elements

Short interactive content with multimedia elements focused on cross-curricular topics.

Tablet-Optimized Experience

Touch-friendly interface designed specifically for student tablet devices.

Curriculum delivery changes

How educational content was reshaped

Replacing textbooks isn't just a format swap — pedagogical structure and engagement model had to change in parallel.

Content delivery format

Before

Print textbooks

After

Tablet-first interactive

Tablets already deployed via e-Škole; built on existing hardware.

Learning structure

Before

Linear (chapters)

After

Modular (self-contained modules)

Teachers compose units around their own classroom flow.

Engagement model

Before

Passive reading

After

Interactive multimedia elements

Active engagement measurably improves information retention.

The Outcome

Nationwide Digital Transformation

The digital educational content is now deployed across Croatian schools as part of the e-Škole program: Complete informatization of school business processes and teaching processes to create digitally mature schools for the 21st century.

Digital curriculum coverage

Before

0 %

After

70 %

+70 p.p.Across active subjects

By end of rollout

800+

Schools active in the program

60,000+

Students with new access

30+

Subjects & cross-curricular topics

Tech Stack
React
TypeScript
HTML5
CSS3
Interactive Media
Responsive Design
The digital content has transformed how students engage with learning materials. Interactive elements make complex topics accessible and engaging for students across all grades.

Project Coordinator

e-Škole Program

From Vision to Reality

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