The Siemens Stiftung Media Portal

Looking for high-quality teaching material?

The Media Portal offers more than 4,000 open educational resources to help teachers provide a diverse, real-world-oriented classroom experience. Whether it’s mathematics, biology, computer science, physics, or chemistry: Here you’ll find a large selection of free digital teaching materials – from worksheets to content packages for interactive whiteboards to exciting educational games. Are you using methods such as inquiry-based learning, inclusive learning or Service-Learning? Our Media Portal has lots of information and materials on this as well.

The Media Portal and the materials are available in English, German, and Spanish.

Comenius EduMedia Seal for the Media Portal

Great joy for our education team: The Gesellschaft für Pädagogik, Information und Medien e. V. was very impressed with the quality of our media and our commitment to high-quality STEM lessons, and has honored the Media Portal with the prestigious Comenius EduMedia Seal.

Coding in STEM education – Basic programming skills

Can you program a watering can? Or measure the temperature with a glove? The “Coding in STEM education” brochure published by Science on Stage e.V. shows how tasks like these can be implemented using microcontrollers. It provides practical advice for elementary schools and especially for secondary schools.

The media portal celebrates its birthday

It was exactly ten years ago, in May 2009, that we launched the Media Portal. Our goal: to provide teachers with free, high-quality digital teaching materials for the STEM subjects. A lot has happened since then. Curious? Click through our photo gallery, where we’ve chronicled the developments of the past ten years for you.

Environmental protection in the classroom: Three diverse learning packs

Would you like to teach the topic of environmental protection to your class in a diverse, easy-to-understand way? With the free Global Ideas learning packs, the environmental series from Deutsche Welle, you can use an effective, exciting multimedia approach to cover topics such as plastic waste or the forest.

Free platform for clipart

Whether you’re looking for a schematic design for an experiment, a diagram, or an animated drawing: At you’ll find an extensive collection of illustrations to make your teaching materials come to life. All clipart is available with no registration required under a CC0 license. That means that it can be copied, modified, compiled, and shared without restriction.

Lilu’s House: Language Skills through Experiments

Why does the mirror fog up when I take a shower? Why do I see my reflection upside-down in a spoon? For children, everyday life is full of questions. The new brochure titled “Lilu’s House – Language Skills through Experiments” from the nonprofit educational initiative Science on Stage Deutschland e.V. provides ideas for science topics in personal, social, and health education (PSHE) in elementary school.

Football in science teaching with iStage 3

What is the perfect curve of a ball’s trajectory? What special attributes must football field turf have? What is the World Cup’s carbon footprint? Students can independently discover and research these and many other scientific phenomena of football with the teaching materials of iStage 3.

Record year for OE Global in 2018

With 386 participants from 45 countries, the OE Global Conference 2018 held in Delft, the Netherlands, attracted its highest number of attendees since the conference’s inception. The Open Education movement is growing throughout the world, as reflected in the wide variety of submissions from around the world for the announced awards.

New look, new content, exclusively OER

The Media Portal relaunch is complete. What’s unchanged: more than 3,500 quality-controlled teaching materials for STEM education. What’s new: We now rely entirely on OER, have broadened our outreach beyond teachers to include students, offer tips for integrating the media into teaching methods … and much more.

OE Global 2018 – How versatile is education?

The motto of this year’s OE Global Conference taking place in the university city of Delft, the Netherlands, is “Transforming Education through Open Approaches.” Key players and supporters of the OER movement will meet for the 11th time from April 24 to 26. You can look forward to lectures, discussion panels, and, of course, a lively exchange with the community.

OERcamps to celebrate their 10th anniversary

The “Meetings on digital teaching and learning materials” in German-speaking countries will take place again starting in May. This year, in addition to attending discussions, the participants will also be celebrating – 2018 marks the tenth round for the OERcamps. Congratulations! Anyone who is interested in open educational resources may participate.


Make the classroom your laboratory

Our international educational program Experimento presents real-world science and technology content. Students can work entirely on their own to discover interrelationships around the themes of health, energy, and the environment. The content addresses value-shaping issues to help students develop socially aware, conscientious behavior.

All Experimento media can be found here.


Here you can find our editor picks: media packages on topical themes or materials that were particular favorites among our users ...

Our June tip

Are pan drippings and salad dressings emulsions? Which separation methods are suitable for producing drinking water from seawater? The Mixtures of substances and separation methods multiple choice test from the Experimento | 10+ How does waste separation work? media package provides 18 questions for students to check their knowledge in chemistry class.

Our May tip

Our interactive exercises and learning modules are going mobile: We’re replacing the Adobe Flash format with the open standard HTML5. This makes it possible to use the materials on all mobile devices without running Adobe Flash Player. Here you’ll find all the media that have already been converted, including Trade winds, Dangers to tropical rainforests, Find axes of symmetry, Detection reaction for unsaturated fats, and The natural water cycle.

Our March tip

How is wind produced? What is the anatomy of the eye? These and other questions related to the human body and the environment are answered in four videos for elementary school. Short and concise, they present the learning content in a way that’s particularly easy to remember. The videos, which are 30 seconds to two minutes long, are suitable, for example, as an introduction to topics in personal, social and health education.

Our February tip

Lightweight and fast in the air but heavy and slow on the ground, airplanes are quite fascinating to elementary school children. A few of the children will certainly have flown in an airplane, but how many of them know the terms cockpit, tail fin, or engine, and can match them to a passenger plane? “The parts of an airplane” interactive graphic puts the children’s knowledge to the test.

New media

From the structure of a water molecule and the evaporation process to the topic of water shortages, “The water cycle” media package supports teachers with graphics, interactive modules, and much more for real-world-oriented geography teaching in grades 5 to 7. Divided into three sequences, the contents can be adapted to the class levels.

Our January tip

How do economies work, and what does globalization mean? The annual meeting of the World Economic Forum in Davos generates a lot of headlines in January and offers a good opportunity for a classroom discussion about global trade and international relations. The interactive graphic “A few countries of the world” familiarizes students with the various continents and provides detailed information on 15 selected countries.

Our December tip

How can we satisfy the huge global appetite for energy in an environmentally friendly way? Power generation and its ramifications top the agenda at this year’s UN Climate Conference, December 3–14 in Katowice (Poland). The diagram “Proportion of energy sources in the global power mix from 2005 to 2040” helps students to break down which resources have a role to play, today and in the future.

New media

The interactive whiteboard "Electricity from renewable energy sources” can be used to clearly illustrate the topic in personal, social, and health education (PSHE) in elementary school. A guideline offers practical suggestions for using the media in class, such as the Structure of a wind power plant or the Basic principle of the solar cell. The complete package is also available in German and Spanish.

Our November tip

Do chicken wings harm the environment? Unfortunately, yes: The popular fast-food snack has a high energy balance. The “Food production – ‘energy hog’” interactive graphic is making students aware of the consequences of high meat consumption. It shows the individual production steps, energy requirement, and measures for saving energy. The “Meat and Sustainability” video is suitable to get them thinking about the impacts of our eating habits.

New media

The “Physics and chemistry of water” media package offers a wide variety of materials for real-world-oriented STEM lessons. Simulations and experimentation instructions help, for instance, illustrate the importance of water for life on Earth. These media are also available in German and Spanish.

New media

Learning environments for inclusive teaching are now also available in English and Spanish: the media package "Material properties – A research expedition". Magnetism, thermal conductivity, solubility – students independently conduct experiments on different properties.

Our October tip

A small action can have a great effect: If you wash your hands regularly, you can protect your health in the long term. It’s particularly important to be thorough, and using only water is not enough. That’s because soap is required to break down and remove many dirt particles. We recommend the “Hand washing with soap” interactive graphic for Global Handwashing Day on October 15. This medium illustrates the microscopic processes during the washing process.

Our September tip

Storms are very threatening but also quite impressive. Within a very short time, they can develop tremendous force, sweep across the landscape, and cause great devastation.
The interactive matching exercise “Cyclones and winds” gives elementary school children an opportunity to discuss the dangers of these natural forces. They familiarize themselves with most important storms and can locate them on a map of the world.

New media

Materials for inclusive STEM education are now available in English, German and Spanish. Experiments based on Experimento I 10+ were aligned with the needs and potential of students with varying levels of educational readiness. Three media packages were developed in collaboration with the State Institute for Educational Quality and Teacher Training in Saxony-Anhalt (LISA):energy, environment and health.

Our August tip

Mmm, a delicious apple! The interactive mind map “Energy metabolism in humans” helps explain what exactly happens when we eat. This medium not only mentions the anatomical and physiological components of food intake and digestion, but also provides information on the nutrients involved in energy metabolism, cellular respiration, and the external respiration processes. The mind map can be developed step by step.

New media

What does renewable mean? How do wind turbines work? Three media packages answer questions on the topic of energy for modern STEM teaching. Renewable energies – the future is sunny, Water and wind – traditional energy sources rediscovered and Solar thermal energy and photovoltaics – energy forms with a future. From now on they are available in English, Spanish and German.

Our July tip

Skateboarders are cool – especially when they help us grasp complex interrelationships in physics: The “Energy skate park” simulation uses the example of a girl in a skatepark to illustrate how potential energy is converted to kinetic and thermal energy. Students have the opportunity to deepen their knowledge by designing their own track, which can even include loops.

New media

The new Experimento Game uses two dilemma situations on the topics of drinking water and garbage combustion to teach students how to associate scientific knowledge with questions about values. The digital game is designed to motivate students aged 11 to 13 to grapple with environmental issues in a way that’s fun. All you need to run the game is a desktop computer with a current browser.

New media

The handout “Service-Learning in STEM subjects” is now also available in English and Spanish under the CC license. With the help of numerous real-life examples, it explains the use of Service-Learning – Learning through Civic Engagement in STEM lessons and serves as support for teachers in developing their own projects.

Our June tip

The starting whistle for the 2018 FIFA World Cup will be blown on June 14. A rule that applies to the soccer pros and in general to all top athletes is that if you want to succeed, you need to pay attention to your nutrition. In the “Carbohydrates as providers of energy for metabolism” experiment, students will learn why potatoes are an excellent provider of nutrients for the body.

Our May tip

According to scientists, 150 species go extinct every day. UNESCO is drawing attention to this danger with the International Day for Biological Diversity on May 22 and calling on people to act in a responsible manner. Our tip for elementary school lessons: Illustrate the significance of species diversity with the “Animals and plants in tropical rainforests” interactive matching exercise.

New media

Now available in English, German, and Spanish under the CC license:
For interactive whiteboards: Energy conversion

Our April tip

Air pollution is often the cause of serious illnesses. April 7 is World Health Day, providing a good opportunity to address this topic in class. However, recognizing pollutants is not so easy: The “Air pollution” experiment provides 8- to 12-year-old children with detailed instructions for detecting contaminants in the air we breathe.

New media

Now available under the CC license:
24 English and 24 Spanish media for experiments of Experimento | 10+ in the Energy and Environment modules.