Sunday, 14 November 2010

Calculator (Doubling number of Multipication)

Dr Leong mentioned about how to use calculator in Developing Mental Computation in Maths

For My task: Explain how to use Multiplication in Doubling Number

Doubling number is using calculator in constants multiplication. Example 2 x 3 = = = until display passed 500.

Answers:

Use Writing on Whiteboard:

2 x 3 = 6
6x 3 = 18
18 x 3 = 54
54 x 3 = 162
162 x 3 = 486

**Multiplication of 3 is Doubling Number

Using Calculator:

Step 1: Press 2
Step 2: Pres 3
Step 3: Press"="
Answer will 6

**Press "=" continue the doubling number of 3

Useful Website:


http://www.phyllobl.net/index.php?option=com_content&view=article&id=450&Itemid=273
http://eduplace.com/math/mw/models/overview/3_9_2.html
http://pbskids.org/cyberchase/games/calculator/
http://www.woodlands-junior.kent.sch.uk/maths/timestable/tricks.html

Example of Repeated additional of Multiplication as shown below:

Repeated Addition as Multiplication

38281437 Repeated Addition as Multiplication

Monday, 8 November 2010

Week 13 - Virtual Experiment and Concept Map

Topic: FRICTION

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

2. Create a Concept Map

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

Intoduction of FRICTION :

Friction is a force between two surfaces that are sliding, or trying to slide, across each other. Friction always slow a moving object down. Air resistance is a type of friction.

Enjoy the Virtual Experiment as shown below:



Please Click 'Fullscreen" button as shown below to View the Concept Map of Friction.

Concept Map of Friction

Week 12 - Virtual Experiment Science (Group Work)

Group member:
Mohammad Helme Bin Panjang-10D0018
Muhammad Najib Bin Hj Maidin-10D0013

Name of experiment: FRICTION

1) Please CLICK HERE to try an experiment of friction.

The experiment is about to choose a type of track with lower friction.

2) Friction is a force between two surfaces that are sliding, or trying to slide, across each other. Friction always slows a moving object down. Air resistance is a type of friction. The amount of friction depends on the materials from which the two surfaces are made. Friction also produces heat, can be a useful force and sometimes we want to reduce friction for some purpose.

3) From the experiments, students can learn there is a different amount of friction on different types of surface. Students also learn that friction affect the distance travel of an object in different types of surface.

Acid Rain video and concept map

TASK as Homework
1. Find any video
2. Create concept map of video.
3. Create questions according the video. (Must do, Should do, Could do)

Enjoy the Videos as shown below about The Acid Rain.



Please Click 'Fullscreen" button as shown below to View the Concept Map of Acid Rain and also some question according the video.


Concept Map of Acid Rain