Little Red Brid | 小红鸟

There were two Cardinal birds🐦 that visited our garden very often. One was a female and the other one was a male. They were both very beautiful.

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But about one week later when we went to see our garden we found a baby Cardinal bird 🐥 hopping around learning how to fly.

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Baby Cardinal Hopping

That’s when we found out that the two Cardinal birds were actually this baby bird’s parents!😀 We gave the young bird some sunflower seeds and water. We saw that the baby bird’s parents kept flying back and forth to see if their child was okay👍. However one sad day when we were going to water the plants in our garden we saw the baby bird hanging upside-down on a net that we put on our grape tree to protect the grapes from squirrels. The baby bird died and we were so sad😭.

We buried the baby Cardinal (小红鸟) in our garden.

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Burying Baby Cardinal

Since the baby Cardinal died, the two parents stopped coming to our garden😥. We hope that we will be able to see the baby bird’s parents again someday🤞.

R.I.P. baby Cardinal.🙏

Open the schools | 开学

We are in mid July.  The latest news says that many schools may not open for the fall, citing spike in coronavirus cases.

However, the lockdown has deprived the livelihood of millions of people, who used to be happy and thriving.  The lockdown has thrown everyone into a stress test.  Millions did not and millions will not pass the test.  Ten of millions of hardworking healthy people now have lost their jobs and their dignity to be self-reliant. With no jobs in sight, they are living on hand outs.

Closing schools further cripples the future of America.   Without classrooms that serve as center of knowledge, by leaving young students wandering in the internet wilderness without supervision, our young do not get a solid foundation of education, they risk misinformation, and will become less competitive and poorer workers.

America has never been in lockdown prior to Covid-19 and we thrived.   Strick lockdowns work in China but they will not work in America, a society used to freedom. Freedom does come with a heavy cost. Accepting that, let’s not to be weakened by fear. Let us be brave and thrive.

Given the danger that schools may continue to close in the fall, we at Magic Math Mandarin will dedicate more resource to our online classrooms to help meet our students’ needs.  We will NOT fail you!

For those who are too worried to back to living, we have compiled some information for you.  Learning history will put our fears in places where they belong.

    1. 1968 flu pandemic written by Kara Rogers, the senior editor of biomedical sciences at Encyclopedia Britannica, where she oversees a range of content from medicine and genetics to microorganisms.   The flu outbreak of 1968 was the third influenza pandemic of the 20th century and resulted in an estimated one million to four million deaths.   The virus is called the “H3N2”.  From the link, you can read about other pandemics too.
    2. The Forgotten Hong Kong Flu Pandemic of 1968 Has Lessons for Today written by John Fund, originally published by National Review.    Read the entire article as you should.   We quote Joel Hay, a professor of pharmaceutical economics and policy at the University of Southern California, says that the role of science has also changed. Medical technology has vastly improved from a time when people still did computations on slide rules. But the data it produces has seduced some into thinking that we know more than we actually do and that we can produce useful models to predict the course of this novel coronavirus disease. “We’re being bombarded with data, but we often act like the guy who looks for his keys under the lamppost because the light is better there,” he told me. “We aren’t asking more fundamental questions, like ‘Does this $20 trillion experiment in lockdowns actually work?’”
    3. History of Pandemics by Nicholas LePan for Visual Capitalist.

Focus on what we can do |专心做我们能做的

Hello everyone! 😊We all know that there have been a lot of changes and chaos happening around us, especially in the major cities in the US. Please do not allow bad news bother you. Please remember to focus on things we can do:
1. Stay healthy physically and mentally. 🥦🏋🏻‍♀️🧘🏻‍♀️🎼
2. Study knowledge 📚and skills that are important for your future. 🚀🛰🥇👍
3. Help your family by doing chores 🧽🧺🧹🛒 and perhaps even help 🏡making or saving some money. 💸💵

We look forward to seeing everyone in class.

Degrees and angles | 角度

Today in the fourth grade weekend lesson we learned about angles📐 and degrees. We explained what degrees was first🥇 because angles are classified using degrees📏. Degrees were discovered by Egyptians. They invented the degree symbol ° and also came up with the 360° circle⚪.  There is an interesting history of how they connect the movement of the Sun with time.   They first divided a year into 360 days, noting that the Sun moved in a circle. Around 1500 BC Egyptians divided 24 hours⏳, though the hours varied with the seasons originally. Then the Greek astronomers made the hours equal. About 300 to 100 BC the Babylonians subdivided the hour into base-60 factions: 60 minutes an hour and 60 seconds in a minute.

We use degrees to measure angles. An angle is a figure formed by two rays🛴 called sides of the angle. In geometry there are three types of angles: an acute angle between 0 and 90 degrees, right angle a 90 degree angle, and an obtuse angle between 90 and 180 degrees. In 1936 a clay tablet was found buried at Shush (Khuzestan region of Iran🌏) some 350km from the ancient city of Babylon on which was inscribed a script that was only translated as late as 1950. The text provided confirmation that the Babylonians measured angles using the figure of 360 to form a circle. The Babylonians knew that the perimeter of a hexagon was exactly equal to six times the radius of a circumscribed circle. This is why they chose to divide a circle in 360 parts⚪. If we did not discover degrees or angles we would not be able to build anything properly🧱. So if we tried building a house without degrees or angles the house would collapse🏚.

We will talk about triangles next time.

Being literate | 有文化

In this weekend’s financial math class we watched a PBS video together, and we discussed what it means to be literate. 

 

The original meaning of “literate” is to be able to read and write, and the word “literature” is associated with poetry, drama, novels , especially those classics.   It was important to be literate because one could not get a decent job or run a business without these basic skills.

 

But our time has long since entering into one that requires much more than reading and writing: financial skills, computer skills, and the ability to read and write in another language are all become essentials.   We are doomed if we are not literate in these essential skills.

 

The main character in this PBS interview is a successful writer.   He lives in East Hamptons, he has a big house and a big yard.  He has two children went on to have great careers after having gone to expensive private schools.   But he says he does not have $400 for emergency expenses.

 

The PBS interviewer asked him for his personal decisions that impacted his financial situation (8:35):

 

“You live in the Hamptons, most people would say that’s a really expensive part of Hamptons.”

 

If you watch carefully, you see that he shops at expensive markets and buys at the custom meat counter.  His house is falling apart into disrepair because he never took the time to do the daily maintenance (if you do not want to maintain your home then you should live in an apartment).   He says if he had $100000 he could get the repair done.   Has he ever thought about DIY?  He has no one to blame but himself.
He openly admits “I am a financial illiterate” “Financial illiterates pay a heavy price for their financial illiteracy”. (10:07)

 

However courageous it was for him to admit it openly, he is still not realizing the path to financial strength is in his own hands.    He complains that “so many Americans have to give up their dreams.”   We cannot help but wondering “Would you consider start doing instead of dreaming?

 

Financial illiteracy is a key factor in the financial fragility of the middle class.  On the one hand, the fiscal principle of savings and taking care of your assets seem to have fallen out of common sense.  On the other hand, we are experiencing much more complex financial products.  The knowledge of people have not kept up.

 

Mother’s Day in Pandemic | 瘟疫中的母亲节

It is a beautiful day on May 10, 2020.  New York City area is still under lockdown because of Covid-19 pandemic.  The weather is perfect with clear blue sky.  👍  We went for a walk, and saw a few others strolling or jogging.   Then on a quiet block, we saw two people dancing💃🕺, singing🎤, clapping👏, and hopping with music 🎶surrounded by party balloons out in the open sidewalk in front of a brownstone apartment building.   They both wear masks😷 and gloves🧤.

“Maybe they are crazy.”🤪 I thought, because who would have behaved like that as if nobody were around.

“Or, maybe they are worshiping God ⛪because churches are closed”.   This seemed plausible since today is Sunday, until I saw the two dancers are actually dancing and singing for someone who is standing behind the glass door.

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There is an elderly lady 👩🏽‍🦳standing behind the door.  Only her tiny head is visible mostly covered by a mask.   She was looking down on those two: the one doing swirling and clapping the most is her daughter 👩🏽‍🦱 and the boy doing the hip-hops is her grandson👦🏽.

 

“Oh, they are celebrating the old lady’s birthday! 😊 They cannot go to see her because they do not want to pass her any virus.  That’s why they have to dance 💃like this for her.   They have come to celebrate her birthday🎂, down the stairs just 10 yards away.

We stopped and clapped with them.  The boy’s mother turned around and gave us a thumbs up👍 and a nod to acknowledge us, and yelled at us “Happy Mother’s Day!”😃

OMG.  It is the Mother’s Day.🌹

Happy Mother’s Day to mothers out there. 🎉 We hope you are safe and doing better than okay!!😄

Pizza price calculation | 计算披萨价钱🍕

Many of us are still in coronavirus lockdown. We are very proud of all of you for staying healthy and safe.😀

In today’s google classroom, we ordered some pizza for lunch. 🍕  We made a Python program to calculate 👩‍💻 which pizza size gives us the best value.

Our goal: to find the lowest price per bite.  To get that, we divide cost by size.

def pizzaBitePrice(radius,price):
    area=radius**2*3.14
    unit_price = price/area
    return(unit_price)
# small pizza
pizzaBitePrice(7,12)
0.07799298063174313
# medium pizza
pizzaBitePrice(8,14.75)
0.06593351910828026
# large pizza
pizzaBitePrice(9,14.75)
0.057993237398757565

👍The conclusion is: the large size one gives us the best value with price of 5.7 cents (plus tax) per bite.

Welcome to our New Google Classroom!!😃

Hello everybody!😃 Welcome back to Magic Math Mandarin.  Since we are staying home because of covid-19, we brought our classes to google classroom so our students can keep on learning even during this pandemic👩‍🏫. Now we can all communicate with each other online💻. In this classroom we will be learning Chinese🈷, math➗, and programming👩‍💻. Our teachers will put new assignments everyday about each topic.  If you would also like to join our wonderful classrooms then here is the class code mtxl6j4

Remember to stay home and don’t get sick!😷 Please join our classroom today!👍💖

 

How to Assign A Shortcut Key to a Style in MS Word

Hello everybody!😃 Today in class we learned how to assign a shortcut key 💻 to a style in Word. What we learned today will be very useful if you are changing all the fonts in a Word document and if you must finish very quickly. In class we assigned a shortcut ourselves. The shortcut is Ctrl Shift E. We made this shortcut to be able to change whatever words we highlight to the font called Normal style in Word.

To do this in Word you have to be on the Home page. Then look in the box called styles and click the thing on the bottom right corner.

After you press that pick a style then click the arrow 🔽 on the style you want.

Then click modify and click Format on the bottom left corner. When you press that there will appear some option click Shortcut Key.

Pick a shortcut you want to give to your style and then press assign.

Yay!! You have now learned how to assign a shortcut key to whatever style you want in MS Word 👨‍🎓👩‍🎓! We will learn much more things in the future😃. Anything is possible.

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