PHY_10_49_V1_LP_Semiconductors

Long-term plan unit: Current in different medium

School:

Date:

Teacher name:

Grade: 10

Number present:

absent:

Theme of the lesson

Electric current in semiconductors.

Learning objectives that are achieved at this lesson(Subject Program reference)

10.4.3.3 - describe the electric current in semiconductors and explain the use of semiconductor devices;

Lesson objectives

•     To distinguish conductors and insulators;

•     To define semiconductors;

•     To describe the productions of semiconductors;

•     To distinguish intrinsic and extrinsic materials

•     To describes p type and n type of semiconductors;

•     Name examples of applications of a semiconductor

Assessment  criteria

Students can

•     Distinguish conductors and insulators;

•     Can define semiconductors;

•     able to describe the productions of semiconductors;

•     can give examples of the use of semiconductors

•     describes p type and n type of semiconductors;

•     Can give examples of applications of a semiconductor

Language objectives

Values instilled at the lesson

Safety, Consideration to others, Co-operation, Opportunity for Life-Long Learning, Academic Integrity and Transparency, Respect for Self and Others

Cross-curricular links

Other subject links include Mathematics, IT

ICT skills

ICT links to use of computers, data loggers, scientific calculators and tablets etc. Making use of internet resources and encourage students to research information online as well as using ICT tools like professional presenter, use of smart board to aid learning.

Previous learning

Electric current in metals

Course of the lesson

Planned stages of the lesson

Planned activities at the lesson

Resources

Beginning of the lesson

10 min

Introduce students with the topic of the lesson and LO.

Starter activity 1: Work in pairs

Students watch a video About conductors and insulators and answer to the questions below:

What are the similarities between conductors and insulators

What is the main difference between insulators and conductors in term of moving electrons

What happens to the insulator if it placed in E field?

What happens to the conductors if it placed in E field?

What would happen if we add some extra charges to the conductor and insulators?

Give examples of insulator materials?

Give examples of conductive materials?

Students discuss answers and teacher might ask questions. Based on the discussion, invite students to hypothesize how to change the conductivity in semiconductors. Aim of this activity to revise what they have learn and focus their attention to the new topic.

Slides

Videolink

Smartboard

Middle

15 min

10 min

3 min

Electric current in semiconductors

Students divided into 4 groups and watch a video clip about semiconductors. The will be given questions and while watching teacher can pause and groups discuss their questions:

What is a semiconductor?

Name a semiconductor element?

Does Si conduct electricity itself?

When atoms a stable?

What is a doping?

What is e n type semiconductor?

What is a p type semiconductor?

 Students share with their ideas about semiconductors. Teacher ask them questions and complete their answers with the explaining next slides:

Teacher focuses on these key concepts so student make notes on copybooks.

Key concepts:

• In n-type semiconductors, electrons are the main carriers, so they have electronic conductivity,

• In p-type semiconductors, the main carriers are holes; therefore, their conductivity is hole

• main and minor current carriers,

• pn-junction, p / p diode, one-sided conduction of the diode, transistor

Further teacher offers student watch a video about applications of semiconductors:

Discussing video. Oral survey on video material

A whole class discussion about the application goes on.

At the end of the lesson teacher goes back to the LO and ask student complete the assessment  criteria table:

Ppt

Video clip

Worksheets

Handout presentation

End

2 mins

Homework: How does a solar panels work?

Reflection

Today I found out  ...

It was interesting …

It was difficult…

I understand that…

Notes.

Differentiation – how do you plan to give more support? How do you plan to challenge the more able learners?

Assessment – how are you planning to check students’ learning?

Health and safety regulations

During watching video teacher might ask more able learners conceptual questions so it help others understand more

By observing their reflection and answers

All safety rules confirmed

Reflection

Were the lesson objectives/learning objectives realistic? Did all learners achieve the LO?

If not, why?

Did my planned differentiation work well?

Did I stick to timings?

What changes did I make from my plan and why?

Use the space below to reflect on your lesson. Answer the most relevant questions from the box on the left about your lesson. 

Summary evaluation

What two things went really well (consider both teaching and learning)?

1:

2:

What two things would have improved the lesson (consider both teaching and learning)?

1:

2:

What have I learned from this lesson about the class or achievements/difficulties of individuals that will inform my next lesson?