Review
· What did you know about superconductivity in our last lesson?
(P) Pair work. TRUE or FALSE
Learners in pairs by discussion show cards of their answers for the given statements to revise about superconductivity.
A superconducting material has zero resistivity when its temperature is below its “critical temperature.”
TRUE
Superconductivity was discovered on April 8, 1911 by Heike Kamerlingh Onnes, who was studying the resistance of solid mercury at cryogenic temperatures using the recently- produced liquid helium as a refrigerant.
TRUE
The superconducting state can be destroyed by a decrease in temperature or in the applied magnetic field
NO
(I) Individual work. Perspectives of receiving high-temperature superconducting materials.
Learners are given questions to learn about perspectives of receiving high-temperature superconducting materials before discussion:
ü High-temperature superconducting: What Is It and Why It Matters to Our Future?
ü Discovery and composition of high-temperature superconductors.
ü How it is receiving?
ü Which materials are high-temperature superconductors?
ü Applications and perspectives of receiving high-temperature superconducting materials.
After investigation in class all learners discuss and summarize the perspectives of receiving high-temperature superconducting materials.
(f) Assessment. Teacher assesses each student by observing during their individual work and during the discussion.
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