Interview with a famous scientist.

This worksheet aims to provide trainee teachers with a historically informed and socially critical understanding of the life stage known as ‘childhood’. Learners are to be made aware that childhood is not a rigid, biological state, but is subject to constant social change. They will learn to analyse historical patterns of upbringing and living environments, to contextualise the contemporary view of the child (including the UN Convention on the Rights of the Child), and to draw conclusions for their own professional approach by comparing the past and the present.

Content and methods:

This worksheet combines historical text analysis, the development of empathy, analysis of contemporary issues and research into international law. Following a personal reflection and an analysis of a historical period, the pupils write a fictional diary entry from a child’s perspective and contrast this with the reaction of a child today. They then map out the cornerstones of modern childhood in a practical matrix and compare historical and contemporary living conditions. The activity concludes with research into the UN Convention on the Rights of the Child, including its historical context, and a reflection on their own pedagogical approach.

Competencies:

Learners can...

• Explain the concept of childhood as a socially shaped and historically changeable construct.
• Analyse children’s historical living environments in terms of educational objectives, work requirements and legal status, guided by specific criteria.
• Develop historical empathy through methods of shifting perspectives and reflect on different living conditions from multiple perspectives.
• Identify the dimensions of modern childhood (including subject status, institutionalisation and mediatisation) and illustrate them using concrete examples from practice.
• Independently research articles of the UN Convention on the Rights of the Child, place them in their historical context and relate them to today’s image of the child.
• Use historical insights to critically examine current patterns of upbringing and apply them to one’s own professional approach.

Target group and level:

Adult students or trainees in the field of social pedagogy, particularly aspiring educators.

Note: Internet access is required for the research task

Objective: This worksheet uses the cooperative learning method known as the “group puzzle” to teach complex concepts in chemistry and atomic physics. The goal is for students to gain a deep understanding of the selected topic through self-directed learning and peer teaching.

Content and Methods: The content is taught using a structured five-phase model that combines cooperative and independent learning: In home groups, each member takes on a specific subtopic, which is then explored in a subsequent “expert phase” in groups of students with the same subtopic, using informational texts and in-depth tasks. Afterward, the students return to their core groups, share their knowledge with one another, and consolidate their findings together before moving on to a cooperative work phase in which they solve complex tasks that can only be mastered by combining all the individual aspects. The process concludes with a joint evaluation in a plenary session and a reflection on the learning process.

Competencies:

• Subject-Specific Competence: Acquiring in-depth knowledge of a topic in chemistry
• Social Competence: Fostering teamwork and communication skills through the “expert” model
• Methodological Competence: Applying cooperative learning methods to independently process information and convey knowledge
• Transferability: Applying expert knowledge to hypothetical scenarios, such as the discovery of new elements

Target Audience and Level: High School

Objective: This workbook explores a historical and materials-science phenomenon: the production of casein, an early milk-based bioplastic. Students work as a team of researchers to investigate how the organic components of liquid cow’s milk can be transformed into a solid plastic through the action of acid.

Content and Methods: The content is conveyed through a combination of historical contextualization, experimental laboratory work, and material analysis: Starting with the question of how a solid material can be produced from milk, students explore the composition of milk and the effect of acids on proteins. They then experimentally extract casein, document the course of the reaction, and examine the properties of the resulting bioplastic. Finally, the results are used in a scientific application to evaluate the historical significance and material properties of casein as an alternative to plastic.

Competencies:

• Technical expertise: Understanding of protein denaturation (acid precipitation of milk protein/casein) and the classification of galalith as a historical bioplastic
• Knowledge acquisition: Planning, conducting, and systematically documenting a preparative organic chemistry experiment (filtration, solid isolation)
• Materials and testing skills: Criteria-based analysis of the physical properties of a self-produced solid
• Argumentation and language skills: Writing a technically sound report using precise scientific explanations

Target audience and level: Middle school

Objective: This worksheet explores the electrochemical fundamentals of galvanic cells and how a lemon battery works in the context of modern, sustainable technology development. Students take on the role of a startup research team to experimentally and ecologically evaluate the suitability of a lemon as an environmentally friendly electrolyte, as well as the efficiency of various electrode pairings.

Content and Methods: The content is taught by combining theoretical fundamentals, experimental data collection, error analysis, and sustainability assessment: First, students explore the structure and functioning of electrochemical cells as well as the underlying redox reactions. They then test their hypotheses in an experiment, document measurement data, and analyze typical sources of error in the laboratory. Finally, they evaluate the performance and sustainability of various materials before summarizing their results in a technical report and a persuasive presentation.

Competencies:

• Technical Competence: Understanding of redox reactions, electrode potentials, and the role of electrolytes in generating electrical power
• Data Analysis: Conducting quantitative electrochemical measurements, systematically comparing variables, and identifying sources of methodological error
• Evaluation Competence: Balancing maximum technical performance with environmental factors (extraction, recycling, toxicity) in the context of sustainable chemistry
• Communication skills: Targeted, audience-oriented presentation of laboratory data for a business analysis or an investor pitch

Target audience and level: Middle School

Objective: The glossary serves to systematically document terminology and knowledge in this subject area. The goal is to foster a solid understanding of key technical terms and to develop the ability to apply them in professional contexts and visually connect them.

Content and Methods: The content is conveyed through precise definitions and the application of that knowledge: First, key technical terms are explored. Learners then deepen their understanding by visually representing relationships in a concept map and by independently writing a text using technical terminology that incorporates the terms they have learned.

Competencies:

• Subject-matter expertise: Proficient use of chemical nomenclature and understanding
• Methodological skills: Ability to organize complex information using concept maps
• Language skills: Writing texts that are linguistically accurate in technical terms to demonstrate a thorough understanding of the subject matter

Target audience and level: Grades 7 and above

Objective: This worksheet uses a fictional criminal case to introduce students to the basics of nuclear chemistry and atomic structure in a playful way. Students examine β⁻ decay using the example of an isotope and learn to quantitatively determine atomic composition and radioactive decay processes based on atomic and mass numbers.

Content and Methods: The material is taught by combining contextual learning, tabular particle analyses, and mathematical methods for describing radioactive processes. The starting point is a fictional case file in which a laboratory investigation is used to develop fundamental questions about nuclear transformations and radiation. Building on this, the isotopes are analyzed in terms of their proton, neutron, and electron counts, and nuclear reaction equations and the principle of β⁻ decay are explored. This is supplemented by a quantitative evaluation of radioactive decay using half-life calculations to determine residual amounts and sample age, before students assess their understanding in a short, summary exit ticket.

Competencies:

• Subject-specific competence: Distinguishing between basic physical and chemical concepts (isotope, atomic number, mass number) and classifying nuclear transformations
• Scientific inquiry: Mathematical modeling of decay processes using half-life functions and deriving nuclear reaction equations
• Communication and Explanation Skills: Simplifying complex atomic processes to suit the audience

Target Audience and Level: Middle School

Objective: The worksheet is structured as a motivating chemistry puzzle (based on the escape room concept). Students assist a professor in the lab in deciphering the mixed-up labels of three unknown liquids/substances (samples A, B, and C) using systematic, experimental identification tests.

Content and Methods: The activity combines theoretical preliminary considerations, experimental analysis, and cooperative quality assurance to investigate various classes of substances in aqueous solution. Students compare solutions/substances, formulate hypotheses about particle behavior, and analyze the samples through experiments. The results are reviewed as part of a peer-review process and subsequently theoretically justified through transfer tasks at the particle level.

Competencies:

• Subject-specific competence: Applying knowledge of substance properties to identify unknown substances
• Knowledge Acquisition: Independently sketching and labeling experimental setups, as well as implementing a qualitative analysis strategy
• Media Competence: Approaching scientific problems
• Language Competence: Formulating a logically consistent detective report using specialized chemical terminology

Target Audience and Level: High school

Objective: The worksheet is structured as a motivating chemistry puzzle (based on the escape room concept). Students assist a professor in the lab in deciphering the mixed-up labels of three unknown liquids (samples A, B, and C) using systematic, experimental identification tests.

Content and Methods: The content is conveyed by combining a digital problem-solving task with qualitative identification experiments: Guided by an audio guide, students gather relevant information and examine the unknown liquids for their solubility, acid-base and redox behavior, and evaporation properties. The results are systematically documented in a lab report and subsequently used to identify the substances in a scientifically grounded final report.

Competencies:

• Subject-Specific Competence: Applying knowledge of material properties (solubility, pH, acid-metal reaction) to identify unknown substances.
• Knowledge Acquisition: Independently sketching and labeling experimental setups, as well as implementing a qualitative analysis strategy.
• Media Competence: Using digital learning elements (QR codes/audio) to approach science-related problems.
• Language Competence: Writing a logically consistent detective report using specialized chemical terminology.

Target Audience and Level: Middle School

Students playfully immerse themselves in the world of trees, solve puzzles, and identify different tree species in order to find a “forest treasure” and break a “curse.”

Content and Methods:

In an escape room scenario, students solve various puzzles related to tree species. They must identify trees based on descriptions, fill in gaps in texts, evaluate statements about trees as true or false, and classify trees as deciduous or coniferous. The worksheet also encourages students to document the trees they find, e.g., through photos or drawings.

Skills:

• Knowledge of tree species
• Analytical thinking and problem-solving
• Reading comprehension and text analysis
• Classification and categorization

Target audience and grade level:

Grade 5 and up

Objective: This worksheet aims to provide students with a basic understanding of genetic engineering and to facilitate a discussion of its advantages and disadvantages, particularly as they relate to fruits and vegetables.

Content and Methods: It explains the basics of genetic engineering and its applications (medicine, agriculture, research). The focus is on genetic engineering in fruits and vegetables, its advantages (pesticide resistance, productivity, nutritional value, climate adaptation), and concerns (environment, health, acceptance, costs). Methods include a prior knowledge assessment, multiple-choice questions, open-ended questions, and expressing an opinion in letter form.

Competencies:

• Reading comprehension of scientific texts
• Critical thinking about biotechnology
• Argumentation and written expression skills

Target audience and level: Spanish learners at B1 level

ESD:

• SDG 13 (Climate Action): Exploring climate adaptation
• SDG 15 (Life on Land): Raising awareness of biodiversity conservation