Virtual Experiment

Name:
Hairul Azmi Hj Sarbini 10D0004
Mohd Kamal Hizrian Bin Kamis 10D0015

This experiment will help you determine the relationship between voltage (V), amperage (I) and resistance (R). This relationship is called Ohm's Law

Please go to this website:
http://jersey.uoregon.edu/vlab/Voltage/volt1.html

Objectives:
- Students will learn relations on the Ohms laws (Voltage, current and resistor)
- Students will develop their thinking skills on how to make the circuit works

The problem consists of two parts:

1. Find the formula which describes Ohm's Law; that is, find the mathematical relationship between voltage (V), amperage (I), and resistance (R).

2. Determine the amperage of the lightbulb.

Instructions:
The first part will be discovered through a trial-and-error experiment.
- choose from a variety of batteries
- add resistor/s to the circuit.
- Turn on the switch, allowing current to flow through the circuit.
- If the resistance is too low, too much current, and bulb will explode.
- If the resistance is too great, the lightbulb will not receive enough current, and will not light.
- If the resistance is just right, the lightbulb will light up. (Note: real light bulbs are not perfect ohmic resistors as is the case here and will light partially with any amount of current).

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Failures,failures,failures......so are you giving Up?

 Check this out:

• http://www.motivateus.com/stories/you-are-the-miracle.htm

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• http://www.inspireme.net/inspirational-stories/positive_thinking.htm

Enjoy.

NVLM lesson plan

This is the link for my lesson plan on NVLM Right Triangle Solver.

http://www.scribd.com/doc/38736517/Lesson-Plan-Geometry-Assignment

This lesson plan also include what would be done in case of absence of Internet connection as without it, the NVLM will not be possible.

My Opinion on Geogebra

GeoGebra is one of the most powerful and very useful for learning and teaching mathematics in schools, primary levels, secondary levels or even tertiary levels. It is very effective tools for learning and teaching mathematics. One reason which I figured out of why it is a commercial product/program is because of one of its features which enables us to upload our work (dynamic worksheet) to the web to be shared with others and this worksheet can be run using our own web browser (stand-alone applet).

Below are the links that provide information of GeoGebra features:

1. http://www.linux.com/archive/feed/119896
2. http://www.mrlsmath.com/geogebra/geogebra-has-new-features-even-more-of-a-good-thing/

Here is the link for GeoGebra 4.0 Release Notes:

1. http://geogebra.uni.lu/en/wiki/index.php/Release_Notes_GeoGebra_4.0

The following is the pdf files of teching with GeoGebra:

• Teaching and Calculus using GeoGebra software

And here is the link of workshop that conducted in Singapore next month, which one of the organiser is SEAMEO:

• Effective use of Geogebrain the classroom-Workshop for Geogebra users.pdf

The above links are regarding about the GeoGebra program. Thank You.

A very helpful example and features for Geogebra

This is the link for some of the features using geogebra in mathematics.

http://www.youtube.com/watch?v=SVSNHhCeukw

This is a video tutorial showing how to create an interactive java applet (virtual manipulative) using the free program GeoGebra