1Electric current in gases Electric current in vacuum

Teacher:

Can electricity flow through a vacuum?
What about gasses?

-Introduces the topic of day and spelling out the learning outcome they will possess after the study.

1. Organizational moment to acquaint students with the

• The theme of the lesson
• The objectives of the lesson
• The criteria of success for the lesson
• The plan of events for the lesson

2. Putting students into groups (two)

(G) Group work. Electric current in gasses and vacuum.

Students research in groups about:

Ø  Group 1: Electric current in gases

Ø  Group 2: Electric current in vacuum

Extension questions by a teacher:

ü  Does electricity travel through vacuum faster than any other material?

ü  Can we transmit electricity through a vacuum? If yes, then how?

ü  What can detect the accurate gas electric conductivity?

Talk partners activity

As a summary referring to the group work , learners in pairs or share with a partner:

Ø  3 new things they have learnt

Ø  What they found easy

Ø  What they found difficult

Ø  Something they would like to learn in the future

(f) Formative assessment.

1.      Describe an electric current in:

a.       gases

b.      vacuum

2.      State one difference and one similarity of an electric current in gasses and vacuum.

Difference

Similarity

3.      Defining

Answer:

1.      Vacuum

4.      Gas

5.      Vacuum

6.      Vacuum

7.      Gas

(f) Assessment. Teacher assesses students in group and individual work by observing and listening their answers.