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Lesson  Plan  

Teacher: MA CHING MAN Iris Subject: NSS Biology

Lesson time: 45 mins Section: 11.2 Mitotic cell division

Class: S4 Chapter 11: Cell cycle and division

B. Teaching aims This lesson helps students to understand

different stages and phases of mitotic cell division

C. Teaching objectives Knowledge

• mitotic cell division: nuclear division and cytoplasmic division • phases: prophase, metaphase, anaphase, telophase Ability

• To describe and identify different stages and phases of mitotic cell division

D. Students’ previous knowledge • DNA, chromosome, cell cycle, cell growth

E. Teaching materials • powerpoint

• video: http://www.youtube.com/watch?v=aDAw2Zg4IgE&feature=related

• notes

• “ice-bar stick” – cell division simulation materials

Reference http://cccmkc.edu.hk/~sbj-biology/CERT%20BIO/Reproduction%20and%20growth/Cell%20division/Cell%20division%20simulated

%20by%20ice-bar%20sticks.htm

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F. Lesson plan

Time (mins)

Teaching and Learning Cycle

Objectives Activities Resources

5 Setting the context

• To revise cell cycle. • Ask students the main stages of a cell cycle

• Ask students what the essential difference is between meiosis and mitosis.

PowerPoint

10 Modelling and deconstruction

• To introduce the stages and phases:

– Nuclear division: prophase, metaphase, anaphase, telophase

– Cytoplasmic division Language aspect applied: prefixes

• teach students the key events in two stages of mitotic cell division

PowerPoint “ice-bar stick” paper

15

Guided construction

• To explain the stages and phases

Language aspect applied: Temporal explanations

• Guide students to demonstrate and present the stages using “ice-bar stick” model in pairs Language aspect applied: Visual presentation.

• Ask students to explain the stages with biological terms.

In the guiding phase, teacher will use language such as: – T: “What should I think of first when I

think about nuclear division?” – SS: “There are four phases: the

prophase, metaphase, anaphase and telophase – in that order.”

– T: “OK. And tell me what happens in the prophase and, by the way, how do I know it is the first phase – what in its name tells me it is the first phase?"

– SS: " ... etc"

PowerPoint “ice-bar stick” paper

15 Independent construction

• To identify the stages and phases

• To consolidate the knowledge on mitotic cell division

Language aspect applied: signposting for students

• Ask students to identify them from video: http://www.youtube.com/watch?v=aDAw2Zg4IgE&feature=related

• Ask students to finish the exercise

PowerPoint Worksheet

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Name: __________________( ) Class: ______________________

Chapter  11:  Cell  cycle  and  division  

Mitotic cell division Analyse the photomicrograph of cells in the onion root tip by identifying the stages and phases for mitotic cell division by adding “✓ “ in the table.

Cell Cell growth (Interphase)

Mitosis (Nuclear division) Cytoplasmic

division Stage 1 (Prophase)

Stage 2 (Metaphase)

Stage 3 (Anaphase)

Stage 4 (Telophase)

A

B

C

D

E

F

G

H

I

J

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Answer key

Cell Cell growth (Interphase)

Mitosis (Nuclear division) Cytoplasmic

division Stage 1 (Prophase)

Stage 2 (Metaphase)

Stage 3 (Anaphase)

Stage 4 (Telophase)

A ✓

B ✓

C ✓

D ✓

E ✓

F ✓

G ✓

H ✓

I ✓

J ✓