Unit Description

Unit Description

Unit Title: Cell

Subject: Science

Total number of sessions: 2

Study hours: 1 hour / session

Appropriate grade(s): P5 – P6

Class size: 25

Principle Theory: Gardner’s Multiple Intelligence Theory - Howard Gardner (1983) proposed a new view of intelligence that is rapidly being incorporated in school curricula. In his Theory of Multiple Intelligences, Gardner expanded the concept of intelligence to also include such areas as music, spacial relations, and interpersonal knowledge in addition to mathematical and linguistic ability.

Brualdi, Amy C, Multiple Intelligence Gardner's Theory, ERIC Digest published in 1990- 09-00, ERIC Clearinghouse on Assessment and Evaluation Washington D C. ERIC Digests are in the public domain and may be freely reproduced

Learning outcome;

- Be able to identify cells as the basic structural and functional unit of all living things.

- Be able to interpret the cell theory

- Be able to analyze the difference between plant and animal cells

- Be able to construct a cell model

Assessment

- Presentation

-Questions & Answers

-Compare and Contrast

-Cell model

Final Project

Work with a partner, create a model of an animal cell or a plant cell. Label the model with a description of each organelle.

The Parts of Cells (Session 2)

The Parts of a Cell

Cells contain even smaller structures called ORGANELLES. These structures perform specific functions in the cell.

http://techcenter.davidson.k12.nc.us/cells.htm

Infer; Discuss with your partner,

Do you believe the organelles of animal cells are different from plant cells? Explain your answer.

Animal and Plant Cells

http://www.cellsalive.com/cells/cell_model.htm

Convert Animal Cell to Plant Cell

http://learn.genetics.utah.edu/content/begin/cells/insideacell/

Individual activity; Construct a Cell

http://www.wiley.com/college/boyer/0470003790/animations/cell_structure/cell_structure.htm

Review

http://www.harcourtschool.com/activity/science_up_close/510/deploy/interface.html

Homework

Answer the following questions and send them to me via e - mail or post your answers in e-class account.

1. What are two functions of the cell wall in a plant cell?

2. What are two characteristics of the membrane in a cell?

3. What kind of organelles can you find in the plant cell that are not in the animal cells?

Task 1- Compare and Contrast

Venn Diagram

Create a Venn Diagram of Plant and Animal Cells (Class Work)

Cells (Session 1)

The basic unit that makes up living things is the Cell. All living things from tiny bacteria to the largest whale, are made of cells.

When looking at most living things, cells are not visible with unaided eye. The invention of microscope made it easy for scientists to discover cells and the structures within them.

In 1665, an English scientist named Robert Hooke made an improved microscope and viewed thin slices of cork for the first time to view plant cell walls. Hooke named what he saw "Cells"

The Cell Theory

In 1838, German scientist Matthias Schleiden compared different plants and plants parts. He concluded that all plants are made of cells. Another scientist drew the same conclusion about animals. Twenty years later, German physician Rudolph Virchow reasoned that cells come only from other cells. These conclusions were eventually organized into a single theory known as the cell theory.

The theory states;

* All living things are made of one or more cells

* the cell is the smallest unit of a living organism

* Cells come from other cells

Group work - Task

Instruction

1. Work in groups of 4

2. Each group go to microscope station and look at 4 slides under microscope.

3. Discuss among yourselves what you have observed.

4. Prepare 2 mins presentation to share your observation with your classmates.

Homework

Answer the following questions and send them to me via e - mail or post your answers in e-class account.

1. Why weren't cells discovered before 1665?

2. How did scientists come to the conclusion that all living things are made up of cells?

Interactive Cell