Franklin Neyt

Energy meter 2.0

In order to keep track of our energy input and usage the Energy meter 2.0 is used.

This meter measures if a solar cell / windmill / … is charging our battery at home. Also, the current that the electric lighting uses (RGB array) is measured. The combination of measurements allows us to keep track over the green energy we have used. All the electric concepts are used. (Resistance, Electric current, Voltage, Power, Usage, Cost, …)

After the students know the cost of keeping the lights, we try to optimize the energy that is generated. This by placing the solar cell directly in the sun with a tracking device and automatically switching the light on and off. This by measuring the light in the room and the presence of a person in the room.

Hans-Martin Hilbig

Battery life matters – three classroom examples to learn how power consumption of electronic devices is minimized

Energy consumption of mobile equipment is critically important. Less frequent charge of batteries saves electrical energy, reduces the size and the waste footprint of rechargeable batteries and extends effective usage before a re-charge is necessary. Reducing the energy needed to perform a certain task opens up options for new energy sources, many of them based on renewable energy. Three ready-to-use classroom experiments will enable students to understand the basic design methods to reduce energy consumption of state-of-the-art electronic devices.

Markku Parkkonen

Efficiently crafting student worksheets in physics and chemistry

Laptops with digital books and math software are used daily in Finnish High School classrooms. Exams and national final exams are also fully digital. Students create digital lesson notes and answers with TI-Nspire CX CAS software and physics & chemistry widgets. We’ll demonstrate how these commonly used tools are efficiently used in our classes, side by side with your TI-Nspire CX II-T CAS handheld.

Cathy Baars

Easy experiments with solar cells and penlite batteries

Solar cells can be bought in many shops for a few euros. Therefore, they are easily accessible in the classroom. This makes it easy for schools to do experiments with solar energy. With the aid of the TI-Innovator Hub the calculator can be converted to a measuring tool. This gives the opportunity to combine measurements with programming with real life materials. Starting with a simple program for measuring voltage till more sophisticated programs that measure and draw graphs.
During this presentation a number of experiments are shown in combination with the programming needed for the experiments. Questions that are addressed in this presentation are:

• What is the voltage and current delivered by the solar cell?
• Is the voltage and/or the current dependent on the brightness of the sun? And what is the relationship?
• What happens with voltage and current when you connect solar cells serial or parallel?
• Is the power of a solar cell changing when different resistors are connected?
• What is the maximum power the solar cell can deliver? Is this dependent on the resistance connected to it?
• How much solar cells are needed for charging your phone, laptop or electric bike?

The questions are meant to arouse curiosity and to show that experiments to find the answers to these questions are within everyone's reach.
These experiments will be used in the classroom with students from 15-17 years old as addition for the normally used method about electricity.

Harald Herzig

Challenges for the Energy Industry

In light of climate change and in line with the Green Deal agenda of the European Union the public and private sector undergoes a transformation process from fossil to renewable energies.With the focus on gas and power we will discuss recent and potential developments from a German and European perspective:

• What are the consequences of the changes in European gas markets over the last 10 years?
• Is nuclear power green?
• What does the exit of the ‘traditional’ power production mean – what are real challenges?
• Will the full electric world work? Just some challenges…

Ian Galloway (Moderator)

Ian is the T³ Europe STEM lead and is an International Professional Development provider and author.
He is a former assessor for the UK Science Council and served four years on the government Advisory Panel for Science in Society for the UK Science and Technology Facilities Council.
From 2001-2003 he served as chair of the Association for Science Education, an international association of science teachers and Europe's largest subject teaching organisation. He has won national awards for teaching physics and was an examinations scrutineer for the former Qualification and Curriculum Authority.
He is a founder member of the UK Science Learning Centre network and is a Fellow of the Institute of Physics.