(Student Blog) 20110815 (CE) Sec 1 Programme - Cyberwellness

This session is facilitated by the Class Cyberwellness Ambassadors, supported by the Form Teachers


Key Learning for today's lesson:
  • What it means to be a good netizen?
  • Responsible action: What to do and what NOT to do, in particular, hacking and invasion of privacy
(I) NETIZEN
We'll discuss what are the characteristics of a good netizen.
Activity 1: 
S1-01 ~ S1-02 ~ S1-03 ~ S1-04 ~ S1-05 ~ S1-06 ~ S1-07 ~ S1-08 ~ S1-09

(2) HACKING & INVASION of PRIVACY
Activity 2:
S1-01 ~ S1-02 ~ S1-03 ~ S1-04 ~ S1-05 ~ S1-06 ~ S1-07 ~ S1-08 ~ S1-09 

(3) SST Acceptable Use Policy
Activity 3: Acceptable Use Policy (AUP)

References/ Resources

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(Class Blog) 20110815 (CE) Cyberwelless Activity 1: NETIZEN

Netizens are People that always make use of internet to participate on social and group activities. They may use the internet everywhere or anywhere.

In your opinion, what are the characteristics of
(i) a good Citizen 
and
(ii) a good Netizen?

LINK

(Class Blog) 20110815 (CE) Cyberwelless Activity 2: About HACKING

Your thoughts on...

(1) What are the different "forms" of Hacking?


(2) What are your feeling (empathy) as a victim of Hacking?

Share your thoughts with the stickies (in the Linoit)
One sticky for each question.

(Class Blog) 20110815 (CE) Cyberwelless Activity 3: Acceptable Use Policy (AUP)

Click HERE to access the Acceptable Use Policy (AUP)

Suggest how you can be a civic-minded and responsible SST netizen? 

Post your thoughts in this blog post.

(6) Chap 5: Factorising ax^2 + bx + c

Look out for the approach... it's applying Grouping method



(5) Chap 5: Factorising x^2 + bx + c

By the Grouping Method...
Take note of the steps to 'break down' the middle term:

(4) Chapter 5: What does factorising x^2 + bx + c mean (visually)?

Reference: Worksheet 6a

Part 1:

LHS = a2 + 2a + 1
RHS = (a+1)(a+1), which can be rewritten as (a+1)2

Now, complete complete two other questions on the same page.

Part 2:
View the following animation to understand learn how the rectangular pieces are assembled.
Did you notice there is a systematic way of organising the rectangular piecs?

URL: http://staff.argyll.epsb.ca/jreed/math9/strand2/factor1.htm
Look at all THREE examples

Part 3:
Generate your own polynomials to factorise using the manipulatives
Update your diagrams and answers in the worksheet.

(a) Select "Tiles (Natural #)" to generate 3 polynomials


(b) Select "Tiles (Integers)" to generate 4 polynomials

(3) Chap 5: Watch the video... Factorisation by Grouping

Factorisation by Grouping: Look out for the approach!
  • Taking the terms by pairs first.
  • Identify the common factor between the 2 terms first.
  • Then carry out the same process - identify the common factor before putting the rest together.
  • The video also shows you that the same answer is obtained even if you re-organise the terms (sometimes)

Video 1:


Video 2:

(2) Chap 5: Factorisation by Identifying Common Factors

Listen carefully to the explanation. Two methods are presented.



(1) Chap 5: Factorisation... Watch the video...

As you watch the video, look out for the number that the expression was 'factorised'. Apart from identifying and removing the common factor, did you notice that it uses the algebraic identities to help factorise?
Useful identities:
  • (a+b)2 = a2 + 2ab + b2
  • (a-b)2 = a2 - 2ab - b2
  • (a+b)(a-b)2 = a2 - b2 
 Video 1



    Video 2