7C Marked algebra test

I sent all the algebra tests back to your mailbox this morning.  The class did well, and only four students did not do the test (they have not been checking on the blog).

Please share test scores and my comment (in small letters written next to the questions that are done incorrectly) with parents.

Will post the rest of fraction PS questions tomorrow or Thursday. Be well

Kwok

Fraction PS question solution, Q# 1-7

I will post the rest later in the week

7C Math: Fraction Problem Solving

Online math lesson:  Do the work in notebook since it is difficult to write fractions on computer.
- if these questions are too hard, I will post some easier questions, still involve fractions,  by the end of the week

I am sharing some of my original fraction problem solving based questions with you.  Try to get the common denominator first .  Will post answers in a few days.  Show all steps and calculations

Example

In a forest, 2/9 of the trees are Maple, 3/7 are Oak, ¼ are Pine and the rest are Ash trees.  If there are 128 Pine in the forest, how many Ash trees are there?

Step 1: common denominator for 9, 7 and 4 (denominators for all the fractions) is

 9 x 7 x 4 = 252

Step 2: find the equivalent fraction for each

(multiply 4x7 = 28 to the numerator and denominator) 2/9 = 2x28 = 56; 9x28 = 252

thus, 2/9 = 56/252

Step 3: or you can also use cross multiplication to find the equivalent fraction

3/7 = A/252

A = 3 x 252 ÷ 7 = 108

1/4 = B/252

B = 252 x 1 ÷ 4 = 63

Step 4: the three fractions are 56/252 (Maple), 108/252 (Oak) and 63/252 (Pine)

Step 5: Ash tree = the rest.  

1 - 56/252 - 108/252 - 63/252

= 252/252 - - 56/252 - 108/252 - 63/252

= 25/252

Step 6: 128 pines = 64/252; ash tree = 25/252

- use cross multiplication and determine that there are 50 Ash trees in the forest

How Covid 19 attacks the lungs

3D CT scan video. Very cool

https://www.cnn.com/videos/us/2020/03/26/3d-video-shows-covid-19-attack-lungs.cnn/video/playlists/top-news-videos/

Cummer Valley Survey: Please complete

https://docs.google.com/forms/d/17ZIBO0iuVfSnCpGVqUytlSvfY_WGMYQsJwOXB_hDUtc/edit

- need to logon with TDSB gmail account o access this survey

Access to textbooks

I know you love your textbooks, and may not have them at home.

Here is the access to all of your favourite.

https://www.nelson.com/learningonline/k12openaccess/

Username: ontario48

Password: NelsonON123

Keep busy.  Start reading the Heat sections in science and early settlement history of Canada.

7A, 7C, 7F Science, heat convection

Heat convection experiment demonstration
https://www.youtube.com/watch?v=WEDUtS0IMws

Convection theory explained
https://www.youtube.com/watch?v=VxGIiOTuAIs
https://www.youtube.com/watch?v=VooYmwTLVgY

Science notes: heat conduction and convection.  More advanced than your textbook but better information

https://drive.google.com/drive/folders/1uxka7GNUpWrH0DJ8_AEkD19oYhFRskdQ?usp=sharing

Three Samples of PEE essay: Money can/cannot buy happiness

First two essays were scored a 60 (content) /40 (grammar).  Both students were in my regular class, and they were NOT in the gifted program.

Written by a male student(60/40)

Many individuals seek to gain a vast amount of wealth. The money they make unlocks countless opportunities and comforts of life. However, one thing that money cannot buy is happiness.

Throughout the years, many successful celebrities have suffered from depression, and some even committed suicide. For instance, Robin Williams, a famous comedian, took his own life on August 11, 2014. Although the rich have an abundance of the objects they desire, they are also faced with a lot of stress. Numerous celebrities are faced with countless criticisms every day. Everything they say in interviews will be open for the public to judge, forcing them to choose their words carefully.  The successful entrepreneurs are faced with a different kind of stress. At work, they are faced with a number of crucial decisions each day.  Various other tasks such as organizing company wide meetings will further increase the amount of time they work. Many CEOs and other officers of high positions will need to plan for the future of the company, and assign tasks to keep the company running. Both of which will require a significant amount of consideration, as it will be the deciding factor of the company’s growth.

In addition to stress, many of the rich will have a limited amount of time to send with family. For instance, numerous extremely successful doctors are fully booked for months. This will decrease their amount of free time significantly. The CEO of a company needs to travel to different branches of the corporation frequently. Even celebrities are required to travel, as they need to go on tours for money.

Perhaps more importantly, money cannot buy love and friendship. Every happy, successful individual are supported by friends and family. Friendship and love are two of the most classic emotions the human processes. Both of which shares a common trait, they are both built through time. Human beings spend time with others that they can relate to. Through their time together, they build friendship, and sometimes love. When everything else fails, their friends and family are still there for them. Furthermore, most people enjoy the time spent with friends and family.

Money cannot buy happiness. Although money allows one to do anything they desire, it cannot buy love, time, or friendship.

Written by a female student (60/40)

Money purchases all the necessities to live as well as luxury items. However, if one possesses all the money in the world, does it make that person the happiest human? Money can buy a countless amount of items, but it definitely cannot purchase happiness.

Being rich can result in taking everything for granted, as well as not even thinking about all the hardships that others are constantly facing. For instance, those in poverty would gratefully take a shiny, crisp apple, instead of the latest Apple phone. In addition, at less fortunate countries such as Ethiopia, many conclude that their life is meaningful. Mother Teresa was poor, but devoted her life to aid others. Furthermore, wealthy people tend to think that everything will remain at the same place or if an object breaks, it is always possible to purchase another. Since one is too occupied in a rich lifestyle, it is unlikely that they will understand the lifestyle of others. However, it is impossible to buy a caring family, which many people can take for granted. Consequently, when it is abruptly taken away, no amount of cash can bring them back. It is pointless to have a lot of money if one is not even happy at the end. Moreover, there are so many people in need, but having all the money for the sake of one’s satisfaction is unnecessary. 

In addition to this, wealth is like a barrier separating people from the real world outside. Meeting others and sharing experiences is a way to surely make life more meaningful. In contrast, with money, one will not go outside and converse with others. It is tragic that the fortunate is too absorbed into their own money, that they are not able to experience the real world surrounding them.

A considerable amount of people seek as well as desire money, since they presume that it will bring joy. However, there are some circumstances where money has absolutely no value. It is impossible for money to buy life-long friends or a true family who appreciates you. Friends and family can unlimitedly produce joy as well as provide love and warmth into life. On the other hand, money only brings pleasure until the limit is reached. The wealthy can be as miserable and feel as poor as the less fortunate if they do not have those they care for around. Thus, the time that is spent being surrounded with those you love should be considered more valuable than any amount of money. 

 This world is not all about having the best or latest items. Possessing money can buy a big plasma television and a humongous mansion, but will purchasing these items be one of your happiest moments? Having money is just a simple desire, which can only please one to a limited extent. Ultimately, money cannot buy everlasting happiness.


Lastly, Money CAN buy happiness (scored 50/40)

Money: arguably the most important object in the world that some people love. Some say that even such an important aspect in life cannot buy happiness, but I say otherwise. Money can remove the overwhelming stress of your finances, buy you a nice and relaxing vacation and finally, can help save lives.

            Donations play a big part in many medical research facilities, and donating to these insures your finances are spent helping others. Helping others is part of our genetic code, and doing such naturally makes us feel better. Donating a dollar to Red Cross, or even a toonie to the less fortunate can make a significant difference to both of your lives. You can feel better knowing that you helped someone, while they can use that coin you handed them to buy something that provides them with even the slightest of relief, such as a sandwich or a cup of coffee. Donating to a charity is also shown to increase people’s levels of happiness, as it still helps people, just too far away for you to reach, but close enough so you can make a difference. Examples of this include the earthquake, tsunami and nuclear disaster in Japan, or the 2004 Indian Ocean Earthquake. In both examples, charities used your finances that you donate to help those in need. Medical facilities are also in need of your donations to research cures and treatments for diseases such as, cancer, HIV, Ebola, etc. It is important that you donate to these research centers to make millions happier, but this time, you won’t be left out.

            Financial worries and spoken about across the glove, and this can seriously impair the happiness of many individuals, yourself included. There are many ways to remove this, such as, getting multiple jobs, saving up in the past, but these methods include an almost unlimited source of these banknotes. It is important to remove this stress to feel happier than you currently are, and you can also help people with this problem too.

            Vacations are a wonderful way of reliving yourself from the stress of life, and again this is something that money can afford. These “breaks “are proven to relax individuals that chose to spend their money this way, rather than use then use their finances for a rug or vase. More studies have shown that learning a new skill helps increase your sense of accomplishment. Accomplishments affect your level of overall happiness, as completing something makes you feel relived, or happy. Some skills can make you feel happy, or even give you a new hobby, such as, when you learn to fly a plane, you might go on to collecting model planes. It is important to use some money in this way to help you become a happier person.

            Based on the above reasons, money can buy happiness, but only if spent in in certain ways. Spending money on yourself will not give you the results, but rather, spent it on others or go on a vacation or learn a new skill.

It will be entirely up to you about your learning. . .

Monday, March 23, 2020

In a press conference, Premier Ford said,

1:55 p.m.: Students won’t be going back to school April 6, Premier Doug Ford says. “April 6 is not a reality right now,” Ford says. Education Minister Stephen Lecce said earlier today that parents should be prepared for a longer break past April 5.


I will continue to post materials on the blog.  Later this week, about heat and some study notes.

Yes, "Can Money Buy Happiness?"  Certainly with all the money in the world today, people are dying of the Coronavirus.  Money cannot buy good health and longevity.  Even with all the cash in the world, when you cannot breath, and your family cannot visit you, what good is that? Please write the essay soon

I will email your playground essay and rubric back to you by tomorrow, March 24.  Many of you have improved a great deal.  Look at my comments and use the suggestions to improve on the money essay.  Continue to use conjunctions, focus on the actions, and avoid personal pronouns to explain.  Try the IT statement also.

2020 Algebra test

Do this from March 23 to 27.  Can look at the handout from class.  Show all steps and calculations.

After it is done, please send a Doc to Kwok

https://docs.google.com/document/d/1eELbAUh_QDJTCoSP-dVoNHS5UIkoXbLpnOHKANboVSA/edit?usp=sharing

Wise Words from CS Lewis and Kwok's translation about the virus

“On Living in an Atomic Age” by CS Lewis (1948)

In one way we think a great deal too much of the atomic bomb. “How are we to live in an atomic age?” I am tempted to reply: “Why, as you would have lived in the sixteenth century when the plague visited London almost every year, or as you would have lived in a Viking age when raiders from Scandinavia might land and cut your throat any night; or indeed, as you are already living in an age of cancer, an age of syphilis, an age of paralysis, an age of air raids, an age of railway accidents, an age of motor accidents.”

In other words, do not let us begin by exaggerating the novelty of our situation. Believe me, dear sir or madam, you and all whom you love were already sentenced to death before the atomic bomb was invented: and quite a high percentage of us were going to die in unpleasant ways. We had, indeed, one very great advantage over our ancestors—anesthetics; but we have that still. It is perfectly ridiculous to go about whimpering and drawing long faces because the scientists have added one more chance of painful and premature death to a world which already bristled with such chances and in which death itself was not a chance at all, but a certainty.

This is the first point to be made: and the first action to be taken is to pull ourselves together. If we are all going to be destroyed by an atomic bomb, let that bomb when it comes find us doing sensible and human things—praying, working, teaching, reading, listening to music, bathing the children, playing tennis, chatting to our friends over a pint and a game of darts—not huddled together like frightened sheep and thinking about bombs. They may break our bodies (a microbe can do that) but they need not dominate our minds.

According to Kwok, the 2020 translation is as follows:

This is the first point to be made: and the first action to be taken is to pull ourselves together. If we are all going to be destroyed by a virus, let that virus finds us doing sensible and human things—praying, working, teaching, reading, listening to music, bathing ourselves, playing tennis, chatting to our friends over a Starbucks and a game of COC—not huddled together like frightened sheep and thinking about getting sick. It is highly unlikely that the virus will break our bodies but the stupid thing must not dominate our minds.  That means you should not think about getting sick all the time.  Now, do your homework!

March 13, 2020

7C
- stay safe.  Wash hands often. Have a good March break
- I will post the Algebra test on March 23.  Do them with computer during the first week, and upload that to me.  Show all steps and calculations please

- PEE essay.  "Can money buy happiness?" Use some of the ideas discussed in class and compose.  Find some examples who are wealthy but sad (e.g. Robin Williams, Tiger Wood, Elton John) and those who are poor and happy (e.g. Malala, Mother Teresa)
- average life style can lead to long life (look at some of the Japanese women who live past 100)

https://www.theguardian.com/world/2018/sep/14/japanese-centenarian-population-edges-towards-70000

- I will provide some science note during the second week: heat transfer, convection and radiation.  Bring your text book home

A^3 + 2B = √B^2
- what is A?

The lunchroom sells only hot dogs and burgers.
Burger = $4 each; Hot dog = $3 each
They sold 75 all together, and collect $258

How many dogs were sold

March 12, 2020

7C
- book report due tomorrow
- I am going to check the explorer answers tomorrow in class.  Please make sure it is done
- 4 Google Slide presentations tomorrow

8A Cafe Kwok

Café Kwok sells only coffee and tea.

Each coffee is $5 and each tea is $3.

On Sunday, Café Kwok sells 88 drinks, and he collects $364.

How many coffee did he sell?

March 11, 2020

- finish your history quiz
- study for the expansion and contraction of materials in science textbook
- the Raymond questions in Algebra

Read your history textbook, page 14 to 17.  You can find all the answers there.

Create your own Google doc., and type the answers to this document.  We wil check them tomorrow.

1. The Vikings started their voyage from __________ to ____________ before reaching Newfoundland

2. Name the five European countries that came to the east coast during the middle ages

3. The age of exploration of North America started in __________ and ended in _________

4. ____________ and ____________ were the first two European countries to seek a west water route (across the __________ Ocean) to go to the far east

5. During the 1500s and the 1600s, many European countries wanted to be ____________ and ____________

6. Mercantilism is a economic theory that calls a country to accumulate wealth in ____________ and ____________

7. When European nations settled in the New World, this was called ____________

8. They encouraged overseas explorations for trade and ____________ among the First People

9. When a country or company believed that it has all the rights to control all the trade in an area, it is called ____________

10. The European control also extended beyond the land and its resources (gold, silver, fur etc) to its ____________

11. After arrival, the explorers would plant a huge ____________ and a ____________ of their home country into the earth of the land being claimed.  “Everything is mine. Bow to my king, worship my Gods, learn my language and culture, and give me your land and all your money.”

12. Cartier claimed the land for the French King in ____________

13. What is colonization?

14. The new settlers were expected to find the inexpensive raw materials and shipped to ____________ to be manufactured into goods

15. The French and English were impressed with the wealth that the  ____________ gained from their colonies in Central and South America.  Then the French and English started to colonize ____________

16. The first prosperous product in North America was ____________

March 10,2020

7C
- Math: Bank of Kwok questions.  Make sure you show the sheet to your parents and they sign the second sentence.  Always be noice to your parents

The second sentence states:

"If you are nice to your parents, they offer you $55,025 as a down payment for your condo.  If you treat them poorly, you get NOTHING!"

- bring science and history textbook to school.  You will have to read on a few pages and answer questions online on Wednesday when I am absent

- 4 students will do their presentation tomorrow.  Enhance the slide tonight. Want a good mark?  Please include text, wallpaper, music, video, photo in the presentation.  Practice at home

March 9, 2020

7C
- pizza lunch tomorrow, late lunch.  Bring a snack for period 4, and eat with Kwok in period 5.
- if you want extra slices, it is $1 each.  Please bring exact change
- complete cooling curves for science experiment
- practice multimedia presentation "All About Me".  Look at the scoring rubrics to determine if you have met all the criteria
- Algebra: expanding equations, page 1 only.  We will do page 2 tomorrow

- probably will have Algebra test after the March break.  Many students are absent this week

March 6, 2020

7C
- Pizza lunch on Tuesday March 10, late lunch since I have to pick up the pizza during the 4th period.  Bring a snack and eat in the cafe first during early lunch, then eat more during the fifth period in my class
- finish Google slide project this weekend.  Presentation will start on Monday.  We will do a few each day
- work on Book report.  Due Friday March 13, 2020

- look at the eyes; try to use a flashlight in a cat or dog

March 5, 2020

7C
- Algebra: buying a used car. . . how much will that cost?  how many months I have to pay?  Can I afford it? [show all steps for your calculations]
- teach your parents about buying a big ticket item: more down payment, higher monthly payment (even $20 more per month), and pay that off as quickly as possible

- science: calculate the rate of change for the science experiment.  Rate of change for six different containers

Try this question

Bernie Madoff wants you to get a really nice car that is worth $25000 with no down payment and even lower monthly payment than the Bank of Nobody.

He also gives you $500 cash for buying the car. (D = –500)

Bernie Madoff uses this algebraic formula to determine your monthly payment.

1.13T  × 1.18³ = 480M + D

where T is the price of the car

1.13 is the 13% HST (thus 1.13T is the total cost you must pay)

M is your monthly payment

D is the down payment

1.18 is the interest charges for your low money payment

What is the 480?

How much will the car be after all the interest charges?

How many years will it take you to pay off the car?

Who is Bernie Madoff?  Look him up. . . he is in jail right now

Will you buy the car from Bernie Madoff

March 4, 2020

7C
- look at the European explorer's information from the big below.  Check answers from last night
- browse through the Magellan voyage.  I will talk about it tomorrow
- complete the Algebra questions on page 2.  There should be 12 questions

-3G - 81 = 168
-3G = 168 + 81
-3G = 249
G = 249  ÷ (-3)
G = -83


- if you are done and willing to try to develop 12 questions, that will be great.  Answers must be in whole numbers.  Try 6 questions with positive integers and 6 with negative integers

European Explorer routes

7C History, Explorer search data; Magellan 1519

- https://www.britannica.com/biography/Ferdinand-Magellan/Circumnavigation-of-the-globe

How to wash your hands?

https://www.thestar.com/news/gta/2020/03/03/washing-your-hands-can-prevent-the-spread-of-coronavirus-but-youre-probably-doing-it-wrong.html

March 3, 2020

7C
- History: find the information on the European explorers
John Cabot, Jacque Cartier, Samuel de Champlain, George Vancouver, Alexander MacKenzie, Simon Fraser, Henry Hudson, John Franklin, Martin Frobisher, John Davis

- when did they arrive in North America
- where did they come from
- why did they come to North America
- what did they do in North America
- results of the voyage

- bring ceramic cup (coffee mug) to science for a cup of hot chocolate tomorrow

- answers to the Algebra homework
A = 15; B = 58; C = 18; D = 33;
E = 80; E = 246;
F = 136; F = 102;
G = 248; G = 17
H = 43; K = 13

Negative
L = -40; M = -55; N = -92; P = -35
Q = -13; R = 16; S = -127; T = -149
F = -51; G = -110; H = -17; K = -31

March 2, 2020

7C
- if you bring a coffee mug (must be ceramic for the science experiment) I will get you a cup of hot chocolate after lunch.  Please bring one on Wednesday March 4.
- also bring a paper cup (Starbucks, Tim Hortons, McDonalds, Second Cup etc), if possible

- Math: learn to fix a car algebraic questions

- All about ME slide presentation

- book report due in two weeks

Marco Polo routes

- Middle ages: 1200AD to 1600AD (400 to 800 years ago)

- Most wealth and power was in different European countries (England, France, Italy, Spain)

- The Catholic Church had all the power [e.g. they were the centre of the universe and all the planets and moons orbit around the church

- Galileo (Italian scientist) invented the first telescope, and did his calculations

- and he concluded that the Earth is a sphere, and the Earth and other planets orbit around the Sun

- there were no detailed maps 

- during the middle ages, most European were Roman Catholic (they eat fish on Fridays; did not taste very good)

- Marco Polo (Italian merchant), traveled east from Italy to trade.  He was looking for herbs and spices

- some merchants brought back and trade herbs and spices from Asia and Marco Polo wanted to get more

- they traded these goods in Iran during the Middle East

- Herbs and Spices: pepper, mustard seeds, vanilla beans, curry, cinnamon, etc

- Marco Polo, his father and uncle kept travelling east along the Silk Road (mountain, desert) to China.  It took many months to get to China

- He discovered many new things in China that he could bring back to Europe: ivory, jade, silk, herbs and spices, compass, gun powder

- the Chinese emperor treated them nicely.  Marco Polo spread the words of God (Bible) to the Chinese

- Marco Polo visited different parts of China and set up churches and trade with the locals

- he went back to Europe by boat (Chinese mapped part of the southeastern Asia sea routes) – on Polo’s way back to Europe, he visited Malaysia and India

- sea routes were easier and faster, and they carried much more merchandise back to Europe