Artificial intelligence has stopped being a futuristic promise to become a concrete tool in the classroom. ChatGPT, Gemini, and NotebookLM are already part of the day-to-day work of thousands of teachers in Argentina and LATAM who seek to prepare richer classes, generate personalized assessments, and create teaching materials in less time.

This guide is practical: no jargon, with real tools and concrete workflows so that any teacher, regardless of their subject area, can integrate AI into their pedagogical practice without losing quality or identity in the process.

Why AI is useful for teachers today

The problem is not the lack of knowledge or will: it's the lack of time. An average teacher spends between 3 and 5 hours a week outside the classroom just preparing materials. AI can cut that time in half if used with intention.

According to a report from McKinsey Global Institute on AI in education, administrative and content-preparation tasks are the ones that consume the most time for teachers and, at the same time, the ones with the greatest potential for automation with AI. This does not mean replacing the teacher, but rather freeing up time for what matters most: the bond with students and real teaching.

AI tools to prepare classes

There are three tools that stand out for their accessibility and direct usefulness in the Spanish-speaking educational context:

ChatGPT (OpenAI)

It's the most versatile tool for generating class structures, explanatory scripts, analogies, contextualized examples, and summaries of complex texts. With clear prompts, a teacher can generate a complete lesson plan in minutes. For example: "Act as a high school teacher. I need a 45-minute class on the Second Industrial Revolution for 14-year-old students. Include objectives, development, and a closing activity."

Google Gemini

Gemini has the advantage of being integrated into the Google ecosystem (Drive, Docs, Gmail), which makes it easier to use for teachers who already work with Google Classroom. It's especially useful for summarizing long documents, finding reliable sources, and generating assessment rubrics aligned with pedagogical objectives.

NotebookLM

This Google tool allows you to load your own documents (books, papers, curricula) and ask direct questions about that content. It's ideal for university or tertiary teachers who work with specific bibliography: you can load an academic text and ask it to generate exam questions, an executive summary, or a concept map based on that material.

How to use AI to design assessments

One of the most powerful —and least explored— uses of AI in education is the generation of varied assessments. With a well-written instruction, you can ask ChatGPT or Gemini to create:

• Multiple-choice questions with a justification for each distractor

• Written-production prompts with evaluation criteria included

• Practical cases to assess the application of concepts

• Competency-based assessment rubrics

The trick is to give it context: indicate the educational level, the learning objective, and the type of student. The more specific the prompt, the more useful the result.

Create teaching materials with AI: step-by-step flow

Beyond classes and assessments, AI can help generate conceptual infographics (with tools like Canva AI or Napkin AI), presentations in Gamma, illustrated glossaries, and even educational podcasts with ElevenLabs. The first step is always the same: clearly define what you want to communicate and to whom.

• Step 1: Define the learning objective ("By the end of this unit, the student will be able to...")

• Step 2: Ask ChatGPT to generate an outline of the content divided into sections

• Step 3: Expand each section with the level of detail you need

• Step 4: Review, adjust, and personalize with your voice and real context

• Step 5: Transform the text into the format you need (slide, infographic, handout)

AI and ethics in education: what to keep in mind

The use of AI in the classroom also brings questions worth asking: How to prevent students from using AI to cheat? How to teach ethical use of these tools? UNESCO published a specific guide for teachers on the ethical use of AI in educational environments, which is a good starting point for thinking about institutional policies.

An approach that works: instead of banning AI, integrate it as an object of study. Teaching students to use tools like ChatGPT with critical thinking is, in itself, a fundamental 21st-century skill. You can see how companies are using similar systems to train their teams in this article about AI Tutor and training in Argentina, which illustrates where technology-mediated education is heading.

Coderhouse courses to master AI in education and work

If you want to go beyond basic use and learn to integrate AI strategically, Coderhouse has options for all levels:

• Introduction to Artificial Intelligence: Ideal for starting from scratch. You'll understand how AI models work, what they can and can't do, and how to apply them in your work area.

• Content Creation with AI: Perfect for teachers who produce educational material. You'll learn to generate texts, images, and presentations with AI in a professional way.

• AI Automation: For those who want to automate repetitive tasks using flows with n8n and other intelligent automation tools.

Frequently asked questions

Do I need to know how to program to use AI in my classes?

No. Tools like ChatGPT, Gemini, and NotebookLM are completely accessible without technical knowledge. They are used with natural language: you simply write what you need and the tool generates it. The learning curve is very low.

Can AI replace teachers?

Not in the short or medium term, and probably never in the most human dimensions of teaching. What it can do is automate the more mechanical tasks —generating materials, organizing content, correcting drafts— freeing the teacher to focus on what machines cannot do: the bond, the motivation, and the support of learning.

Which AI tool is best for teachers?

It depends on the use. To generate texts and lesson plans: ChatGPT. To integrate with Google Classroom and search with verified sources: Gemini. To work with your own academic bibliography: NotebookLM. Many teachers end up using all three in a complementary way.

How can I prevent my students from using AI to cheat?

More than banning it, the most effective approach is to redesign assessments so that they require personal reflection, one's own experiences, or contextualized argumentation —things that AI cannot easily fake. There are also AI-generated content detection tools like Turnitin AI and GPTZero, although none is 100% infallible.

Is it safe to upload my students' materials to AI tools?

With care. Most free tools (ChatGPT, Gemini) can use the entered data to improve their models. To work with student data, the safest option is to use enterprise or educational versions that guarantee privacy, like Google Workspace for Education or Microsoft Copilot for Education.