Sabtu, 13 November 2010

Week 13: Virtual Experiment

Topic: Characteristics of materials

Tasks:

1. Choose one Virtual From BBC - KS2 Bitesize.
Click the link http://www.bbc.co.uk/schools/ks2bitesize/science/materials/characteristic_materials/play.shtml

2. Create Concept map

3. Create questions ("Must Do", Should Do" and "Could Do")

Introduction the Characteristics of materials:

Materials have different properties that make them useful for different jobs. Material such as metals, plastics, glass, wood and fabrics have different properties. Materials have different properties that make them useful for different jobs. Here are some properties that materials have.
·         Transparent or opaque
Transparent materials do let light through (you can see through them). Opaque materials do not let any light through (you cannot see through them).
·         Waterproof
Waterproof materials do not let water through and do not soak up water.
·         Strong
Strong materials are very difficult to break.
·         Flexible
Flexible materials are easy to bend.
·         Hard
Hard materials are difficult to scratch.
·         Magnetic
Magnetic materials are attracted to magnets.
·         Conductors
Some materials are good conductors of heat. This means heat can travel through them easily. Some materials are good conductors of electricity. This means electricity can travel through them easily.
Enjoy the Virtual Experiment as shown below:



Here is the concept map



Questions



Week 12: Virtual experiment

Science> Physical Processes
Changing Circuits
Q: Make a circuit with one very brightly lit bulb that can be turned on and off.
The circuit consist of choice of two types of battery, which is 1.5Volt or 3.0Volt, normal wire or twisted wire, choice of one bulb or two bulb and ON/OFF switch.
The bulb brightness depends on the battery voltage, if you put 1.5Volt battery the bulb is less bright. If you put 3Volt battery the bulb will be brighter. The reason, because with 3Volt the current flow is higher. Current is equal to voltage divided by resistor.
Assume the bulb resistor is two ohms
Therefore,
I = V/R = 3/2 = 1.5 Amps
I = V/R = 1.5/2 = 0.75 Amps
I = Current, V = Voltage and R = Resistor
So, according to ohms laws, the higher the current, the brighter the light.
Q1: Can you make the light bulbs working and see the difference if you put 1.5Volt battery or 3.0Volt battery.
Q2: Why do you think the light is not ON if you put the switch to OFF?
Q3: Why do you think that the light brightness is the same when you use normal wire and twisted wire?
Done By Group:
Haji Roslan –> 10D0005
Nor’izman –> 10D0001

Concept map on electricity (Copied from http://cmapspublic.ihmc.us/rid=1121811339066_1756205171_2783/Electricity.pdf)

Week 11: Movie and Concept Map

Aircraft Maintenance

Aircraft maintenance is a combination of all engineering and support actions taken to retain the aircraft and its equipment in a ‘serviceable’ condition or to restore it back to that condition.
The reasons why we need maintenance are:
Minimise faults that could result in loss of operational capability
Minimise faults that could result in a hazardous situation
Minimise faults that could result in expensive repairs and/or lengthy downtime
Minimise the engineering manpower and resources required for maintenance
Identify methods to improve reliability





Aircraft Maintenance concept map


Aircraft Maintenance


Youtube video on Blackhawk Helicopter Maintenance 


video





Week 10: Concept Map

What is concept map?

Concept maps are tools for organizing and representing knowledge. They include concepts, usually enclosed in circles or boxes of some type and relation ships between concepts or propositions between two concepts.Concepts, usually represented as boxes or circles, are connected with labeled arrows in a downward-branching hierarchical structure. The relationship between concepts can be articulated in linking phrases such as "gives rise to", "results in", "is required by," or "contributes to" (Copied from wikipedia)


Example of concept maps copied from wikipedia 

Examples of Unit Guide M3 Electrical Fundamentals 3 For National Diploma In Aircraft Engineering (Avionics)

Unit Contents Concept Map


Lesson 1 Concept Map with Questions 



Week 9 : Create a story related to science or maths.

During on of Dr Leong's lesson. He mentioned about stories related to science or maths and how it helps kids to learn. He used the international children digital library. http://en.childrenslibrary.org/

An example is below
 The Wright Way

Week 8 : Calculators

A calculator is used to find the solution or calculate complex equation in a small amount of time opposite to using the human mind which may take quite some time. An example is Trigonometry .When we use a calculator we must be aware that the answer is logic and near estimation.  

An introduction to the use of calculators is to give the students the hands on experience and the confidence of operating a calculator. A lesson on addition, subtraction, multiplication and division should be conducted. 

Useful Links

Week 7 : Geogebra

Geogebra is an interactive geometry software for education on schools. Most parts of geogrbra are free software. Geogebra is written in java thus making it available for multiple platforms


Below is a link on howto get started with geogebra 


Below is a video on youtube on how to start using geogebra