Categories
Edu-and-Ladue-School Technology

Two simple Microbit programs for valentines day

Reading Time: < 1 minute

I am going to show the below two simple programs with hearts tomorrow for the 4th graders in my daughter’s school.

Instruction for Microbit: download the hex file, paste it to the microbit, the code change will take effect 

Beating heart | micro:bit  – note I can switch back and forth 

Flashing HeartMakeCode  – this is the one that’s currently on my Microbit, I will switch back and forth, also I will explain the code a bit, both the block code, and the Python code.

Also, refer to my old blog post Teach Kids Programming

Categories
401k and Personal Finance Business Investing

All the math we need for trading stocks

Reading Time: 2 minutes
A fun math problem suitable for a confident 4th grader

I went to my 9 year old (4th grader)’s class recently and tried to talk about the “The Stock Market Game” (btw, it looks like my main winner is Nike for now 🙂 Below is something I shared in my daughter’s class.

I also tried to answer some questions on individual stocks too, e.g., Adobe, Chipotle, Peabody Energies (do they still have the same name after emerging from bankruptcy, btw).

All the math you need in the stock market you get in the fourth grade.

— Peter Lynch (famous mutual fund manager in the US)

Warren Buffett said something similar (only need 4th-grade math for stocks) in the 2022 Berkshire Hathaway Shareholder meeting, at about 1 hour 40 minutes mark, morning session (available on Apple Podcast and YouTube)

Warren Buffett bought his 1st stock at the age of 11: 1 minute 28 seconds in the video till 2 min 27 sec . I think he is probably in grade 6 or 7 (he may have skipped grade when he was young).

Mutual Fund (this came up as a question and I prepared a bit)

Illustration of mutual fund

Articles from nerdwallet on Mutual fund


It’s hard to look up Mutual Funds in the Stock Market Game website (app), btw.

VFIAX – VFIAX-Vanguard 500 Index Fund Admiral Shares

I created a notes before I go, and here is the google docs link (you can view it).

PS: 4th grade math on Kahn Academy

(Update 11-10-2023) A coworker recommended the Netflix series below, on personal finance etc. I watched a bit, and I think this is good.

Below is a screenshot, if you are in the free world, you will likely see 2 similar images (to be precise, one is Tweet, the below one is an image)

I think this Netflix documentary series maybe suitable for the kids 4th graders and up 🙂
Categories
Edu-and-Ladue-School kids Life Life Tips

Rain, umbrella and persuade preteen wear jacket

Reading Time: 2 minutes

Seven years ago, when my 12 year old was 5, and we sent her to a summer camp. One day she came back in the afternoon with wet clothes, and we were upset and I sent angry email to the camp lead counselor (adult who is in charge). At the beginning of last school year (fall 2021), at the middle school, they had similar incident, in which kids wait in the rain for the bus, I recall there was a heated discussion thread on the FB private group (on Ladue Community Connect: more precisely the Aug 26, 2021 post). When I grew up I was taught in a culture to avoid rained on, and more importantly don’t wear the wet clothes for an extended period of time, as it will be bad for one’s health. On the other hand, until recently I started to appreciate that got rained on is not necessary bad. Something like described in this tweet.

Yesterday morning, it rained, and we told our 12 year old to bring umbrella. She was reluctant, and later told me she doesn’t know how to open and close umbrella. I let her practice a few times. She took it.

Dressing warm or put on jacket is more a struggle. Sometimes I was successful, other times I decided it’s not the fight I wanted to pick that day. Like this morning. It was about 40 degrees fahrenheit, and she was the only kid with a T-shirt. She probably put her jacket in the backpack. I waved to her, and did not ask her to put it on. I wish her well today. Hope she doesn’t get cold (I heard getting cold is not necessarily from lack of clothes 🙂

PS: I posted it on Facebook, LinkedIn and Twitter. With a hashtag #preteen (daily struggle etc). And I got warning from the Twitter: “We put a warning on one or more recent Tweets because they might have sensitive content. If you think this warning is a mistake, you can appeal.” || I deleted the tweet.

Categories
advice and tips Fun

Youyou’s 1st month at Hope Montessori Toddler program

Reading Time: < 1 minute(Update 10-01-2011) We went to Youyou’s school this morning for “Parents work day”, basically they have some small playground improvement projects (painting, making a new climber), and in the lunch time, we have a BBQ and potluck. The ethnic diversity of the students/parents background surprised me a bit, reminded of Rolla (a lot of Indian and Chinese faculties and graduate students). It took some efforts to pull together such an event, thanks to David and his staffs 🙂

(Original) Youyou is a 18 month and 18 days old. She started the program on Aug 29, and 4 weeks has passed. She has transformed from “crying when mom left her in the school” to today “she no longer cries when mom drop her”.

She can say quite a few Chinese words and some sentences. She has good memory probably due to genetic reason (we are both good at memorizing things). She also can feed herself a bit, and be much more proactive when playing with us. For instance, she came to grab me for dinner when I was on phone last Sunday evening (mom did not ask her). Not to mention grabbing my glasses (she is very fast). When I go to work, she will usually say “Mao Zi” which means “wear a cap”, and say “bye bye” (which she learned a while ago).

I attended a class offered by David (the head of Hope Toddler program) this morning, Dave is quite enthusiastic and I think the No. 1 thing for me is to learn, because kid is learning from parents all the time.