video-captured by the Canon 500D
Wednesday, February 23, 2011
Saturday, February 19, 2011
Thursday, February 17, 2011
Tuesday, February 15, 2011
Animal Trivia from Singapore Zoological Gardens
Can you spot the adaptative features of these animals ?
Human Flight via Jet Propulsion
Yves Rossy, the first man to have the performances of an airplane (climb !) with only his body movements to steer
In 2010 (2 years later)....
Saturday, February 12, 2011
Thursday, February 3, 2011
Wednesday, February 2, 2011
Tuesday, February 1, 2011
MrDA13's Maths Techniques - Did You Catch 'Em All?
General Methods
- Linking Method (needs fraction simplifying skill)
- Grouping Method
- Region Method
- Number Bonds
1. Area and Perimeter
a. Perimeter
- Outlining (so as not to forget which line has been included in calc)
b. Area
- Region Method
- Grouping Method
- finding area of 'Rugby' ball
2. Angles
- Label angles inside of figure
- shade angle ( to focus on angle to find)
- indicate parallel lines for Trapezium and Parallelogram( 'C', Z' and 'E/F' shape)
- indicate equal lines (to reveal isosceles and equilateral triangles)
3. Number Patterns
- Column Method
- Square (eg 1,4,9,...) and Cube numbers (eg 1, 8, 27,...)
4. Algebra
- Mini statements
- rearranging algebra and numbers with their respective signs
5. Speed
- Timeline drawing
- Common Time t and
- Common Distance d
6. Volume
Volume = Base Area X height (special formula)
Tap Qns - 2 taps flowing with x and y volume per minute. Find combine volume per minute 1st.
7. Tesselation
- Look for the order;- Unit shape must follow the order of the figure
-------------
Legendary 7
1. Before-After
ii. Before-After-After
iii. 2 Scenario
2. Shortcut Unit (when cutting-up the model becomes too tedious; beyond 10 cuts)
3. Clone ( to make the link)
4. 1%-1u (extension of shortcut unit; when percentage cannot be converted to 'convenient' fraction eg 20% to 1/5 but instead 33%)
5. X-Box (when 2 links are needed for two different bases)
ii. Dot Box and Beyond
6. Modified Model
7. Number X Value
ii. 2 Scenario-Same total
iii. White Box x X-Box = Dot Box (when we don't know the Number and the Value)
iv. Guess and Check
- Linking Method (needs fraction simplifying skill)
- Grouping Method
- Region Method
- Number Bonds
1. Area and Perimeter
a. Perimeter
- Outlining (so as not to forget which line has been included in calc)
b. Area
- Region Method
- Grouping Method
- finding area of 'Rugby' ball
2. Angles
- Label angles inside of figure
- shade angle ( to focus on angle to find)
- indicate parallel lines for Trapezium and Parallelogram( 'C', Z' and 'E/F' shape)
- indicate equal lines (to reveal isosceles and equilateral triangles)
3. Number Patterns
- Column Method
- Square (eg 1,4,9,...) and Cube numbers (eg 1, 8, 27,...)
4. Algebra
- Mini statements
- rearranging algebra and numbers with their respective signs
5. Speed
- Timeline drawing
- Common Time t and
- Common Distance d
6. Volume
Volume = Base Area X height (special formula)
Tap Qns - 2 taps flowing with x and y volume per minute. Find combine volume per minute 1st.
7. Tesselation
- Look for the order;- Unit shape must follow the order of the figure
-------------
Legendary 7
1. Before-After
ii. Before-After-After
iii. 2 Scenario
2. Shortcut Unit (when cutting-up the model becomes too tedious; beyond 10 cuts)
3. Clone ( to make the link)
4. 1%-1u (extension of shortcut unit; when percentage cannot be converted to 'convenient' fraction eg 20% to 1/5 but instead 33%)
5. X-Box (when 2 links are needed for two different bases)
ii. Dot Box and Beyond
6. Modified Model
7. Number X Value
ii. 2 Scenario-Same total
iii. White Box x X-Box = Dot Box (when we don't know the Number and the Value)
iv. Guess and Check
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