February 28, 2025

 I am sick and will have to rest today. Behave

8C, 8D Math (page 392 to 400 in PDF, data analysis and probability)

https://drive.google.com/file/d/1OTRXhln7UD_rF0Y2pBuQsyC4bjXImTmG/view?usp=sharing

- note the PDF pages are different from the textbook pages. It is Unit 7 and you will learn graphs and data

- do the question in page 388 (400 in the link)

8B, 8D Science - pages on blog

https://drive.google.com/file/d/1TxIMvNSIj7kusyHkeZbfJ_wswLYCFgkG/view?usp=sharing

February 27, 2025

8D Drama scoring (make a copy in your computer)

https://docs.google.com/spreadsheets/d/1t6RtR6Vpj9ycWPlwC22iWVOYu2zqCgSiSMo57e_siGg/edit?usp=sharing 

Randon card draw App

https://www.calculatorsoup.com/calculators/statistics/random-card-generator.php

8C Arts

- On Cavas, colour the zebra, a panda and a dalmatian 

February 26, 2025

 Math homework

https://docs.google.com/document/d/1J_J0PEHoE5AMrJlDYS4X0e-9uYqaS6_Ibxknv8gnBbE/edit?usp=sharing

Playing cards

1) Probability of getting a red card

2) Probability of getting an Ace

3) Probability of getting a black Queen

4) Probability of getting and Ace, then a King (cards not put back)

5) Probability of getting 7-7-7 (cards not put back)

https://www.theguardian.com/world/video/2013/mar/13/dead-pigs-shanghai-river-video

Dead pigs in water

Dead fish

https://www.youtube.com/watch?v=fucmYLS-Eb0

Math Quiz everyweek from now on

 To make sure you pay attention in class and do your homework

Scrambled egg exaperiments

 Water at room temperature has a density of 1g/mL

Anything with a lower density (e.g. oil) will float on top of water

Higher density (e.g. a coin) will sink

Experiment 1

- Put ice cubes in a glass of water. Ice floats. \This means solid water (ice) has a higher density

- for most substance, the solids are more dense than the liquid

- the other exception is scrambled eggs

Experiment 2

- 2 eggs, scramble

-cook it in a hot pan

- put the cooked eggs in water to see if it sinks or floats

- find out why solid scrambled eggs have a higher density than the liquid after cooking

February 25, 2025

 ORANGE

Case 1

- a bag of letters from A to Z

- pick 1 letter at a time

- put it back into the bag afterwards

- what is the probability of spelling the word "ORANGE" correctly?

- note: no repeated letter in ORANGE

Case 2

BANANA

- A and N are repeated

- what is the probability of spelling it right

February 24, 2025

 8C

- lets' redo the TWO DICE probability question again

- I will check your work tomorrow. Get them done please

- 2 dice, 75 attempts, determine the probability of getting an even outcome 

(e.g. 1-3 = 4, thus even outcomes)

Believe it or not, in theory, there is  57.1% chance (12/21) of getting an even outcome.

Only 42.9% (9/21) of an odd outcome.

Test this with your experiments. Compare theoretical and experimental results

MATHEMATICS

- these letters are written in separate cards

- one card is drawn at a time. Then put back

- what is the probability of getting a vowel card? Explain

- If 666 cards are drawn, approximately how many vowel cards are there?

8D

- find five very long words (at least 10 letters long) and compose five questions

1234 cards are drawn randomly. How many vowel cards are there for each word

- show sample calculations

Angioplasty = pop open a clogged artery

(My uncle Dr Kwok, a cardiologist, does 10 a week)