IMAGE

click her to see haoi sete

what is learn from (pi)

I thing learning some new in life for (pi) through the activity, I will talk about these in flowing points

Background about (pi)

The number π is the ratio of the circumference of a circle to the diameter.
The value of π is approximately 3.14
The diameter of a circle is twice the radius.
Given the diameter or radius of a circle, we can find the circumference.
We can also find the diameter (and radius) of a circle given the circumference.
The formulas for diameter and circumference of a circle are listed below.
We round π to 3.14 in order to simplify our calculations.

D=2*r
C= π*d


How to Measure the diameter of the circle

The distance around a circle is called the circumference. The distance across a circle through the center is called the diameter. π Is the ratio of the circumference of a circle to the diameter? Thus, for any circle, if you divide the circumference by the diameter, you get a value close to . This relationship is expressed in the following formula:

c/d= π

How to calculate the value of (pi)?

This is simple application for (pi)
Example 1:

The radius of a circle is 2 inches. What is the diameter?
Solution:

d=2 * r
d = 2 · (2 in)
d= 4 in

Example 2:

The diameter of a circle is 3 centimeters. What is the circumference?
Solution:
C=pi * d
C= 3.14 · (3 cm)
C= 9.42 cm

web quset

Electrical Engineering
A WebQuest for University (Electrical transformer)
Designed by
Badreldeen Omer Mohammed Omer

bdreldeen2009@yahoo.com

Introduction Task Process Evaluation Conclusion References

Introduction back

The electrical transformers are the one of electrical mechanical it appears as statistic machine.
Its function to transfer electrical power and There are many types of transformers its use in various applications like step-up, step-down voltages and currents.

The Task back

Explain why do need to use transformers.
Mention operation components of the transformers.
List six types of transformers.
Calculate the efficiency of the transformers


The Process back

Your task must be done in the form of groups consist of four, each group must have a leaders to distribute the roles, any student has a job, you need to have a journal documenting to write your information, you need to discuss after you information have been gathered.
The groups well divided as flowing:
(Group 1)
Explain why do need to use transformers
http://www.electricityforum.com/products/trans-s.htm
(Group 2)
Mention operation components of the transformers.
http://www.tpub.com/neets/book2/5a.htm
(Group 3)
List six types of transformers.
http://en.wikipedia.org/wiki/Transformer#Types
(Group 4)
Calculate the efficiency of the transformers. http://www.copper.org/applications/electrical/energy/trans_life_cycle.html
Notes
This link contains the Video and Graphics of the transformers
http://www.flickr.com/photos/39959962@N07/?saved=1
This link contains the Text of the transformers
http://123.writeboard.com/b8448fa816e12f3d2

Evaluation back

Your evaluation in the form of quiz you can click here to do that. After that in groub you must designed studied about your topic by used mobile device,after the end send me in my E-mail badreldeen2009@yahoo.com

Conclusion back

After the completion of this activity or lesson I'm sure you learned New something's in electrical transformer
Please tell me in my E-Maile badreldeen2009@yahoo.com what did you learn.

References back


These are some of the link will help you to learn.

Text :
http://www.electricityforum.com/products/trans-s.htm
http://209.85.129.132/search?q=cache:HzNbEmherdkJ:https://noppa.tkk.fi/noppa/kurssi/s%20%20%20%20%20%20%2017.2030/harjoitustyot/lab1.pdf+calculate+efficiency+of+electrical+transformers%2Bpdf&cd=1&hl=en&ct=clnk
Video:
http://revver.com/video/1082224/electrical-transformer-explodes/
Animation:
http://www.physclips.unsw.edu.au/jw/electricmotors.html
Sound:
http://en.wikipedia.org/wiki/Transformer
http://www.dgmarket.com/tenders/adminShowBuyer.do~buyerId=1494748
Graphics:
http://www.fotosearch.com/photos-images/high-voltage-transformer.html

MATRIX

taske 6 (day 4,10june)

Task

6.1

Web2.0 Tools

It’s easy used to Exchange of data and information and help to work in grub (together) and Facilitate communication.

http://en.wikipedia.org/wiki/Web_2.0


Web Quest

The activity doing by educators or students it used to know the achievement of the objectives of the activity and Information comes from the Internet.
en.wikipedia.org/wiki/WebQuest

http://www.google.com/url?&q=http://www.geocities.com/w9227/Edweb/Golssary.htm&ei=yHcvSr7IIZOGsAamr4W9CQ&sa=X&oi=define&ct=&cd=1&usg=AFQjCNG5vjAe-CghWGoOOCzF6Fxp--bCVg


6.2

Mapping
Curriculum Areas: science
Grade Level: VII in collage of technical Electrical
Application: Electrical transformer (I used power point to present information)
Description: teachers, for use with their students, how and why use transformer in life.
Introduction: ElectricalTransformer l is very important to student of electrical engineering
The electrical transformer is used to translate voltage and currant

Task:
1. What type of transformer
2. Where used transformer
3. Search in the internet (video, text, photo and animation) abut transformer
4. Give definition to transformer


Process
· Your task must be done in the form of groups consist of third.
· Each group must have a leader to distribute the roles.
· Any student you must be working.
· You need to have a memo to write your data.
· You must discuss after you gathering information.

Evaluation: I used excel to make guise to assessment learner


Conclusion:

At the end of the lesson we must learn: -

· 1 calculated (voltage, currant, losse, drop voltage and efficiency…ECT).
· Use their experience to solve the problem of electrical ENG
· The student clears that, this lesson help them to learn electric engineering in future

http://webquest.sdsu.edu/designpatterns/all.htm
http://www.microsoft.com/education/designwebquest.mspx
http://webquest.sdsu.edu/designsteps/index.html



6.3

How and Why



http://www.answers.com/topic/transformer

taske 5 (day 3,9june)

Task5
5. Mobile “learning” (i.e. change in cognitive – list the skills, affective – list skills and psychomotor skills)
Make a matrix in which you indicate what skills it addresses

5.1:Make a list of the properties of your Mobil phone with which you can GIVE information to learner

Internet
· Plots
· MMs and SMS
· Camera
· Video

5.2:Make a list and write down which of the following you will use the mobile phone to FIND information as:
Text, Video, Animation, Sound and Graphics
5.3:How will you transfer information and present information from mobile phone to other sources?

· SMS and MMS
· PLOTSE
· IR
· ITRNET
· PHONE

5.4:find free software programme that you can use to change the extension for mobile phones

· Pix2 phone browses
· Mpowerplayer 2.0.921
· Howdy soft phone .ogb

taske 4 (day 2,8june)

Task 4


4: Web based “learning” (i.e. change in cognitive – list the skills, affective – list skills and psychomotor skills),Create a matrix to indicate which skill is addressed.

4.1: Make a list of four web-based ways in which you can GIVE information to learner

· Yahoo
· Face book
· flicker
· You tub

4.2: Fined one good URL the TOBIC in you subject you choose yesterday to FIND information:
Text, Video, Animation. Sound and Graphics


4. 3:Find four SUITABLE software programs that you will use to PROCESS information


The software programs used to process information are: -
· Write board
· POWER POINT
· EXCEL
· PAINT


4.4:Find 2 free software programmes that you can use to PRESENT information
Free software programmes used to present information: -

· PLOGGR
· DEMO MOODLE FEATUER
· YAHOO
· Rass feed