Check out this site for math games suitable for students from about 6th grade through high school. The games are real-world situations in a variety of careers. I'm going to play one. https://www.thirteen.org/get-the-math/
I chose the 'Math in Special Effects' video. The students arrived at this equation: where I is light intensity, and K is the constant, and d is the distance, I = K/d squared, which describes an inverse square relationship.
0 Comments
“The Treasury Department posted a $1.7 trillion debt for the past fiscal year, according to Fox Business. “The deficit reportedly grew by 23%, including $879 billion to service current debt. [That is interest paid on debt, like interest you paid on your home mortgage. Yes, governments borrow money and pay interest on it.] “‘The impetus for these massive deficits is federal government spending, which tipped the scales at $6.1 trillion last year. Government receipts [money received], meanwhile, were $4.4 trillion, woefully short of the $5 trillion previously forecasted,’ the report stated. “‘A slowing economy and counterproductive tax increases were key drivers behind the $457 billion drop in receipts from the prior fiscal year,’ it added.” https://conservativejournalreview.com/treasury-reveals-serious-problems-ahead-for-us-economy/? I dare you to look at the running debt clock...https://www.usdebtclock.org/ the economist
The rupture speed of most earthquakes tops out around 5,600 to 6,700 mph. A little math is used to determine how far away an earthquake is. Problem not likely on the SAT illustrates two math principles that are needed for the SAT: product of the power and identity. I will challenge my nine-year-old student to this algebra problem. Alexander is unusual. He can do the steps for solving problems but does not want to and might be saving these tasks for another day! I post math that challenges me and to see if you can do it, or learn how, which is fun. I think so. Even 2 to the 9th power can be done without a calculator. Break it up, and I would multiply 513 x 511.
Blaise Pascal's triangle on the left has eight secrets. One is found by drawing shallow diagonals, revealing the Fibonacci Sequence on the right.
This came up during tutoring. Alexander learned what a perfect number is, a positive integer equal to the sum of its divisors (including one and excluding itself). Six is a perfect number: 6 = 1+2+3. Twenty-eight is a perfect number: 28 = 1+2+4+7+14. Then we learned that all even perfect numbers are triangular numbers. That is when Alexander reminded me, no, chastised me, about Pascal's triangle. Which boy forgets nothing? artwork courtesy of Wikipedia and David Tung on Quora Isn’t this better than watching TikTok videos or commercials? If y = x squared, substitute for x the number 2 and y = 4. Do the same for other numbers, and you will see the parabola forming in Quadrant 1. I liked every single day of K-12, and school is where I wanted to be. I never felt loved in school after that, which explains why I tutor middle and high school, and Alexander. If you are in college and feel the same way, I have no solution. Just persevere. Find a Latin Mass.
Pink noise is fractal. Fractals are infinitely complex patterns that are self-similar across different scales. They are created by repeating a simple process over and over in an ongoing feedback loop.
A 2012 study in the Journal of Theoretical Biology found that steady pink noise reduces brain waves, which increases stable sleep. A 2017 study in Frontiers in Human Neuroscience also found a positive link between pink noise and deep sleep. Brown noise is hurricane-force wind. Visit the website of the California Parents Union, the place for parents, grandparents, and guardians who are fighting for parental rights and the protection of minors against gender interventions and radical political indoctrination. Tip line available. californiaparentsunion.com/ Read about a 5th grade teacher in Georgia who decided it was appropriate to teach gender concepts in place of multiplication and binary equations. She read My Shadow Is Purple in class and was fired after parents objected. The book promotes a non-binary lifestyle. https://pjnewsletter.com/teacher-gender-binary-book-career/?utm_medium=email&utm_source=actengage Here is the math: Using the binary* to decimal formula, one can convert a binary number, which is base 2, to a decimal number, which is base 10. If the given binary number is 1101011, using the formula (not shown here), the decimal number is 107. *Binary is used in the computer world. The book has a grammar mistake: fully unique. One of my friends said that all children want is recess. He understands children; the teacher and the author do not.
A triangular pyramid is a geometric shape that has a triangular base and three lateral triangular faces. It has a vertex, the point that is common to all three lateral faces. If all three faces are equilateral, that is, all the sides are of equal length, then such a pyramid is called a tetrahedron. See summer fires in Canada, Greece, and Hawaii.
Get off TikTok! It is a Chinese Communist Party app mining your personal information, especially selfies, for blackmail. That is why I put no pictures of living relatives or friends on my website. Do real math. See me.
Assuming you are an American and assuming you are as valuable as an Iranian international criminal, your current worth is $3 billion.
How many ways can you cut a rectangular board into four equal parts? Assume the board is a 2x4 or any similar measurement. Alexander was given the problem. You can build a hanging planter with nothing but 2x4s, a pallet, and one of my designs. The drawing I wanted Alexander to see was the “top right” one because with that one he could see that by halving rectangles again and again, one gets more and more of them.
Rectangles are fractals. https://medium.com/hackerlog/fractals-it-goes-on-and-on-and-on-and-on-and-on-and-on-forever-14cae8b886e6 I chose this problem because the answer is very clever.
There are 99 of you locked in one room. Everyone must choose a number between 1 and 100. You will only survive if no one else chooses the same number as you. Which one do you choose and why? Answered by Gaurav Gupta, Quora, July 20 Frankly, I'm going to assume we can't choose decimal numbers, as that would probably ruin this game and make it completely useless. Next, I'll assume we have a limited amount of time to pick the number. This means that any coordination between the groups is impossible to achieve. So now I just have to guess, hoping no one chooses my number. 1. The first thing I'm going to do is ignore the spectrum (1-20) and (80-100), simply because most people will automatically turn to these numbers, leaving the numbers in the center relatively intact. We are left with more than spectrum 21 to 79. What to do now? Let me explain. 2. I will also eliminate the remaining numbers that could symbolize birthdays or a day of the month. So, spectrum 21 to 31. There is now a range of 32 to 79. 3. I will now forget all the even numbers because they are most likely to be caught because of the ease of division. Now here are the remaining numbers: 35; 37; 39; 41; 43; 45; 47; 49; 51; 53; 55; 57; 59; 61; 63; 65; 67; 69; 71; 73; 75; 77; 79. 4. I now remove the square numbers and then the numbers divisible by a digit (1 excluded). We then end up with this little list: 37; 41; 43; 47; 53; 59; 61; 67; 71; 73. 5. I only have odd AND prime numbers left, very little used, so I am now one of those who have the best chance of winning. I choose … 41 Many years apart, Alexander, nine, and I got as close as Amargosa Valley.
The Grable shot was named after American actress/pinup Betty Grable. image courtesy of Rogelio Barsallo, professional mariner, Quora contributor B.Sc. in Marine Transportation, United States Merchant Marine Boxhall's ashes were scattered to sea at 41°46N 50°14W – the position he had calculated as Titanic's final resting place 55 years earlier. The ship had sunk on April 15, 1912. He died on April 25, 1967. Captain Edward Smith, age 62, married and one daughter, did his duty and went down with the ship.
One silk tie requires 150 Silk cocoons.
One pound of silk requires 2,500 Silk cocoons. How much silk is in one tie? A tie needs 150 cocoons, so 150/2,500 = .06 That is 6% of a pound, which is .96 ounces, almost one ounce. If that were weed, I would call the cops. Tiny farmers raise 200K to 1 million silkworms at a time. Both are ugly, so I am providing no pics. You can submit a pic of your pretty silk anything. Egg 10-25 days Larva/worm 20-33 days Pupa 10-14 days Moth 5-10 days Bill looked at the fractal entry and recommended a YouTube video on the Mandelbrot Set. However, I looked for a shorter video, one more suitable for a short blog entry. The area of Quora that I am part of is Number Theory. I am a student of it. It is not algebra or geometry or other, but a combination of them all and a deeper inquiry into numbers. The demonstration will be two-dimensional with three-dimensional, computer-generated art. In the YouTube video that follows this one, the math teacher locates the Fibonacci Sequence in the Mandelbrot Set. Thank you, Bill. Enjoy. A fractal is a never-ending pattern. Fractals are infinitely complex patterns that are self-similar across different scales. They are created by repeating a simple process over and over in an ongoing feedback loop. - loop courtesy of fractalfoundation.org
Did you ever think it possible for Greenland to have a heat wave? Well, the hottest day ever recorded, according to records that go back 74 years to 1949, was 74.5℉ (23.6°C). As of June 15, 2023, Greenland has had a near-average melt year. Total melt-day area ranked twenty-third in the 45-year-satellite record with present data. Did you know that Tahiti, near the bottom of the globe, still belongs to France? Water temperature in Tahiti today is 79.9°F. Bathtub. Alexander and I worked on this problem. You would feel light, but you would succumb. Mercury has extreme climes. The part facing the sun is extremely hot, whereas the other side is freezing. There is a lack of air. Without a spacesuit, you would survive for two minutes or not even that.
Here is a math problem Alexander, nine, and I had today. Algebra 1.
A train running 1320 miles in 24 hours starts ½ hours late. How much must it increase its speed to arrive on time? Because the train starts the trip ½ hours late, it must traverse the entire distance in only 23 and 1/2 hours. Two versions of the distance, rate, time problem: (1) D = R x T (2) average velocity = distance/time Using the second version... v = 1320/23.5 v = 56.2 mph If the train had NOT started late, v = 1320/24 v = 55 mph 56.2 - 55 = 1.2 So, the train must increase its speed by 1.2 mph over the other trip speed. Only those numbers that are perfect squares have an odd number of factors. For example, nine has an odd number of factors: 1, 3, and 9. Sixteen has an odd number of factors: 1, 2, 4, 8, 16. This is the key to solving a puzzle called, “Switching 100 light bulbs”. Dr. Josef Ketzer of Austria posed the problem in the blog post on 6/28/2023, Dividing Square Roots. See if you can find the answer without looking at the answer.
“Hours after users began reporting the problems, billionaire owner Elon Musk tweeted that the site had applied temporary limits ‘to address extreme levels of data scraping and system manipulation.’ “‘Verified accounts are limited to reading 6,000 posts a day,’ he tweeted. Unverified accounts are limited to just 600. New unverified accounts are at 300 posts a day.” July 1, 2023, CNN Who reads 6,000 posts in a day? AI? Math has limits! Maybe Twitter needs a new name, Outer Limits. CNN shows bias with one word, for everyone knows he is a billionaire. chart courtesy of onlinemathlearning.org The problem looks simple, but the lesson readies a middle school student for algebra and is placed in the blog because John reviews must-know, pre-Algebra definitions. I have entered several of John’s videos into the blog because this is the ideal way to teach or tutor, unlike the vile teacher in the post, UK Teacher Recorded 6/24/2023. You can divide the square root of 30 into 10 parts. It will be an approximation, but it's good enough.
|
Categories
All
Archives
April 2024
|