Validity of information

We usually come across information. The information is required to be accurate. Although the information might be accurate it also needs to be relevant to the task.

James wanted to know about weather. He was searching information to find out about weather.
How Does the Thermometer Work?


A thermometer is a device that measures the temperature of things. The name is made up of two smaller words: "Thermo" means heat and "meter" means to measure. You can use a thermometer to tell the temperature outside or inside your house, inside your oven, even the temperature of your body if you're sick.

One of the earliest inventors of a thermometer was probably Galileo. We know him more for his studies about the solar system and his "revolutionary" theory (back then) that the earth and planets rotated around the sun. Galileo is said to have used a device called a "thermoscope" around 1600 - that's 400 years ago!!

Is this information Accurate?

Is it valid?

What advice will you give to James?

Share your responses.

Biased Information

How do you tell that a piece of information is biased. Briefly explain how you would evaluate information to check if it is biased.

Using your explaination above identify some piece of information, review it and explain if the information is biased or not. Explain in details your answers.

Write your reflection on the process.

The accuracy of information

What does the words accuracy and accurate mean?

How are they different?

Rate the following websites on accuracy and reliability.
Use the rating scale for
Reliabiliy
Most -1 -2 -3 -4 -5 Least

Accuracy
Most -1 -2 -3 -4 -5 Least

Site 1 www.flat-earth.org/
Accuracy score:
Reliability score:

Site 2 www.upmystreet.com/
Accuracy score:
Reliability score:

Site 3 www.bbc.co.uk/
Accuracy score:
Reliability score:

Site 4 www.ovaprima.org/mission.html/
Accuracy score:
Reliability score:

Site 5 www.amazon.co.uk/
Accuracy score:
Reliability score:

Share your answers in the class.

A visit to the LIBRARY

People visit the library to look for information.

As you think of designing your web based information resourse it is very important to find from the library how the information is presented in the print media.

You will look for information based on enviroment interms of
-Advertisement for business, tourism and study
-Protection and conservation

You will use a variety of resources from journals, magazines, newpapers and books.

You need to design a grid to fill in the information you get.

Type of source Type of Information Layout


You will use the grid in the library during the next lesson.
The design of the grid is of your choice and it will be graded on layout, content sought and tracking evidence.

Website Review Activity

This activity is to be done after describing the parts of a website and the usefullness on these parts.

Identify a website on coastal environment. Review the website based on the parts such as counters, navigation, date last updated, links and advertisement.

a)Write an analysis of the website.

b)Write a recomendation for the website.

Mail it to gioko@akam.ac.ke

Parts of a WEBSITE

A websites may contain
Links
Advertisements
Date of last update
Counters

What are these parts?

Why are they useful in a Website?

Navigation is how one moves around in a website, through buttons, icons and keys.

Explain why navigation is important in a website.

Some key navigation terminologies are BACK and HOME what do they mean?

SHARE YOUR WORK

URL

What is a URL?

Predict the URL for the following companies

Tesco
MArks and Spencer
Amazon
Thomson Holiday
Nakumatt
Nation Media
The BBC
Kenya Airways
Kenya Wildlife service
Scuba diving

Write down the predicted URL.

Now Check out the URL in Google

Write a reflection on your performance.

SHARE YOUR WORK

Reliability of information

There is a Subtle diffrence between some of the terms ACCURATE and RELIABLE.

Briefly explain your understanding of the term Reliability.

List some of teh sources of information that you think are reliable e.g the school timetable...

Type the word Reliability in a word document.
Use thesaurus and find out other words which imply the same meaning.

Briefly explain the meaning of reliable information NOW.

Send your work to gioko@akam.ac.ke
Please make sure the subject reads MYPCT Reliability of information.

Information: Reliability, validity and bias: Bogus Information

Bogus Information

What is bogus information?
Write a sentense describing what is bogus information?

Spot bogus information

Visit the websites and write a paragraph about each website. The paragraph should explain the nature of the information presented by the website
Site 1: www.glsc.genetics.utah.edu/
Site 2: www.genochoice.com/
Site 3: www.zapatopi.net/afdb.html#WHAT
Site 4: birdfood.co.uk/
Site 5: www.pestorfood.com/

Type your work and send it to gioko@akam.ac.ke
Point to reflect on "Why should anyone put in time and effort to creat bogus sites"

Creating Models: Spreadsheets

INFORMATION TECHNOLOGY
Creating Models: Spreadsheets

1. Give the cell reference of the cell:
a) below G5
b) to the right of A4

2. If the range of cells from A4 to A8 is A4:A8 give the range for:
a) the five cells to the right of G7,
b) the four cells below G7,
c) the four cells to the left of G7.

3. Use the SUM function to give:
a) the total of the five cells below G6,
b) total profits for the year if January’s profits are in C5, February’s in C6, and so on.

4. In a spreadsheet, cell B5 contains the cost of an item excluding VAT and cell C5 contains the amount of VAT to be paid. Cell D5 contains a formula for the total including VAT. Is it:
a) =C5+D5
b) =B5+C5
c) =B5+100*C5
d) =B5*C5

5. What else can you put in a spreadsheet besides text and numbers?

6. What type of operation can you do on a spreadsheet which you cannot do on a database?

7. Name three different operations which you would expect to be able to carry out on text in a spreadsheet cell.

8. Name three different types of number format you would expect in a spreadsheet cell.

9. What is the difference between an absolute cell reference and a relative reference?

10. If a spreadsheet is used to produce a model of a situation:
a) where are the variables of the model?
b) how are the rules which govern the behaviour of the model written?