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Collection of Reviewed Teaching Resources

Chemistry: What is a metal? (Metallic Bonds)

Subject taught
- Physics


Type of Product
- Videos

Language Skills Developed
- Interaction
- Listening
- Speaking
- Writing

Transferable/Scientific Skills Developed
Students will develop self-motivation, group work and critical thinking skills.

General aims Students will be able to explain what a metal is. They will acquire the basic English vocabulary connected with the topic (Chemistry: What is a metal? Metallic Bonds). Students will develop positive learning habits such as note-taking, team work and problem-solving skills.
Linguistic aims
Students will be able to:
-listen English video with ease
-reflect on their listening experience and share it with their peers
-get the main ideas
-comprehend the topic correctly
-translate words connected with the topic (Chemistry: What is a metal?/ Metallic Bonds) from English into their mother tongue.
Subject specific aims
Students will be able to:
-explain the phenomenon
Target groups age:
Students from high school 16-18+ years old.
Level of competence in English (CEFR)
Time required to use the resource with the students: 1 hour

•How to use it
The teaching introduces the topic and the video which focuses on the most important characteristics of metals. Metals are shiny, malleable, ductile, and good conductors of heat and electricity. The video explains the connection between the nature of metallic bonds and these typical features. The way it is organised favours the Watch-think-write strategy.
The students are invited to watch the video and add information they hear according to a given structure - guided notes. The teacher fragments the video into its main sections. The teacher pauses the video after each segment to allow students to process the information, to ask questions, discuss and complete the task. Thus students are given enough time to include the new information in their guided notes and summarize it. The sections and their timing: 0:00 Characteristics of Metals 0:23 The "Sea of Electrons" model of metals 1:23 Metals are shiny 1:48 Metals are good conductors of heat 2:04 Metals are good conductors of electricity 2:20 Metals are malleable 3:01 Metals are ductile 3:43 Metals have recognizable crystal structures 3:53 Which metal is liquid at room temperature? A plenary discussion based on students’ guided notes follows and consolidates students’ learning.
The teacher elicits from students what words they heard related to the topic and create a mind map (the teacher can create a cloud on and invite students to come up with their suggestions).
The students can find new resources related to the topic on the internet and present them to their peers.

•Possible difficulties for the students

Students who have poor knowledge of English can have problems with understanding the content.

•Strengths: It is easy to use. The material is well organised in sections with subtitles. It provides students with structured information related to the topic. •Scientific reliability: The source is reliable. •The activity encourages collaborative learning, self–directed learning, peer assisted learning, depending on how the task is organised.