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### Teaching Resource: The force of gravity - explaining the phenomenon

Subject taught
- Physics

Type of Product
- Articles
- Videos

Language Skills Developed
- Interaction
- Listening
- Speaking

Transferable/Scientific Skills Developed
Students will develop self-motivation, analytical skills, critical thinking skills, problem-solving skills.

Description
General aims Students will be able to explain the phenomenon. They will acquire the basic English vocabulary connected with the topic (gravity). Students will develop positive learning habits such as organisational and problem-solving skills. We consider different types of force and then look at what gravitational force actually means. We look at the difference between mass and weight. Linguistic aims Students will be able to: - read English texts with ease - reflect on their reading experience and share it with their peers - get the main ideas from a text - comprehend the topic correctly - translate words connected with the topic (greenhouse effect) from English into their mother tongue. Subject specific aims Students will be able to: - explain the phenomenon, its causes and effects - provide solutions to related problems in their context - act pro-socially and prevent the phenomenon Target groups age: Students from high school 16-18+ years old. What is more, this web site can be used by anyone who wants to do extend knowledge about the greenhouse effect. Level of competence in English (CEFR) B1+/B2 Time required to use the resource with the students: 30 minutes How to use it The teacher tells students that the concept has been a matter of interest to many people throughout the centuries. S/he asks students if they know anything about Aristotle’s and Galileo’s views on the topic. The teacher reads the following two sentences and asks sudents which sentence is false: 1. Aristotle wrote that heavier things fell faster in proportion to their mass. 2. Galileo stated that all bodies fall with the same acceleration, bodies of different weights dropped together reach the ground at the same time. The teacherasks students and if they do not know tells them when the demonstration of Galileo’s supposition was first performed. The teacher asks students to watch the video on David Scott’s experiment and come up with an explanation. The teacher can play the video or parts of the video several times. If students need more guidance and support, they can look for the explanation in the following text (Newton's law of gravitation). http://galileo.phys.virginia.edu/classes/152.mf1i.spring02/DiscoveringGravity.htm • Possible difficulties for the students Some students may need more guidance than others and may have problems with the language. Pair work or group work may make some students feel more comfortable.

Related Video Lessons

Force of Gravity