ABOUT US
Founded in 1994, Tiandy is ranked No.7 in the surveillance field. Tiandy integrates AI, big data, cloud computing, IoT, and cameras into people-centric intelligent solutions. With more than 3,000 employees, Tiandy has over 80 branches and support centers at home and abroad. With a strong and capable R&D team as the core, we have a 1,000-person research institute in headquarters. Tiandy has participated in drafting 26 national industry standards and applied for more than 900 patents and software copyrights, also successively put forward the concepts of "Starlight" and "Polar Day" and continues to research and develop several competitive new products, such as the "AK Series", "Polar Day Series", "Omni-directional Series" and so on. In addition, Tiandy has built a 40,000 square metres intelligent security industry base. Fortified by our advanced SMT production line and strict quality control system, we are able to provide 10 million units with lower than 0.1% defect rate per year.
So, why should you choose Aula Internacional 4 Plus as your Spanish language course? Here are some benefits:
Strong emphasis on cultural diversity across Spain and Latin America. Superb digital platform support.
| Section | Pages | Focus | | :--- | :--- | :--- | | (To Start) | 2 pages | This double-page spread sets the stage. It explains the final task ("tarea") you'll be able to accomplish by the end of the unit and introduces the key communicative, grammatical, and vocabulary resources you'll need. You'll begin with a warm-up activity to activate your prior knowledge. | | Comprender (To Understand) | 2 pages | Here, you'll work with a rich variety of authentic texts and documents, such as web pages, emails, news articles, brochures, quizzes, and advertisements. These texts contextualize the core linguistic and communicative content of the unit, focusing primarily on reading and listening comprehension. | | Explorar y reflexionar (Explore & Reflect) | 4 pages | This is the active "discovery" phase. Through activities based on texts or small linguistic corpora, you'll observe how the language works in different contexts (morphological, lexical, syntactical, functional, and textual). This guided practice helps you build explicit knowledge of grammar and usage. | | Léxico, gramática y comunicación | 2 pages | This section offers a clear, visually organized summary of the unit's key vocabulary, including helpful word collocations. The grammar page provides clear grammatical and functional charts, helping you understand the rules you've been discovering. | | Practicar y comunicar (Practice & Communicate) | 3 pages | The last three pages are dedicated to communicative practice. You'll engage in varied micro-tasks, activating the unit's content to participate in meaningful interactions. This is where you'll apply what you've learned in personalized contexts, based on your own experiences and perspectives. The final task ("tarea") is a comprehensive, multi-skill activity that synthesizes everything you've learned in the unit. |
Each unit includes a "final video" and integrated multimedia content accessible via the Campus Difusión
The core philosophy of Aula Internacional 4 Plus is the model. Each unit is structured around a final project or task. Instead of just memorizing grammar points in isolation, you learn the tools necessary to perform a specific action—such as writing a formal complaint, delivering a presentation, or analyzing a literary text. This ensures that every hour of study has a practical application. 3. Comprehensive Digital Integration
| Format | Price (approx.) | Source | | :--- | :--- | :--- | | (Standard) | €27.90 - €32.20 | El Halcón Maltés, 2025 | | Libro del alumno (Standard) | $980.00 MXN | Distribuidora QuintoSol | | Edición híbrida (includes 1-year digital access) | $71.20 CAD | Klett WL Canada, 2026 | | Student Blended Bundle (Textbook + digital platform) | $94.95 CAD | Klett WL Canada, 2026 | | Edición anotada para docentes (Annotated Teacher's Edition) | €32.50 EUR | Klett Sprachen, 2026 |
If you are familiar with the original Aula Internacional series, the Plus edition introduces several high-value enhancements designed to streamline both teaching and learning:
Each unit in Aula Internacional 4 Plus is a carefully choreographed journey from comprehension to production. A typical unit consists of the following sections: Comprender (Understanding)
One of the great strengths of Aula Internacional Plus 4 is its clear, consistent, and highly effective unit structure. Each unit is carefully designed to take you on a learning journey, and all new material is presented in a logical progression that builds your skills step by step.
Aula Internacional 4 Plus is a Spanish language textbook for the B2.1 level , published by
