High school Definition and 720 Threads

Given 0<a<π/2 , b>0 find a c>0 such that : for all ,x : if 0<x<π/2 and |x-a|<c ,then $$|(\sqrt sinx +1)^2-(\sqrt sin a +1)^2|<b$$

Dear all, for my education as a physics teacher (Dutch high school, ages 14-17) I have to make a didactical assignment. This assignment consists of applying the so-called "lesson study" method, see e.g. https://tdtrust.org/what-is-lesson-study https://www.uwlax.edu/sotl/lsp/index2.htm My...

The 100W light bulb (cost 0.60 dollars) is not going to be used anymore and is being replaced with the 20W (cost 3 dollars) low energy light bulb. If electricity is charged at $0.15 per kWh, for how many hours must the low energy bulb be used in order for the lower cost of running it to exactly...

I'm curious how technology education in high school has progressed throughout the years. I graduated HS in '89. While there I had three semesters of programming. Basic on an Apple 2E and RPG 2 and COBOL on an IBM systems 3 mid-range. Punch cards for the win. Please share your experiences.

Hello, I,m korean high school student who likes mathematics. So I have made a math mock exam for KSAT, and this is a problem in the exam. It doesn’t need so long calculation but you can feel it a little difficult. (Sorry to my fool English performance. I’m not good at English)

Hello, I am new to physicsforums and I am still a high school student so I would like to have advice on what books should be relevant on preparation for calculus and more math beyond. I have basic algebra and geometry foundation and I would like to learn more high school math and up. So my plan...

Hello everyone, A postion for an AP (advanced placement) physics teacher opened up at the high school I work at and I jumped all over it. More specifically, I will be teaching AP Physics 2. I believe I will be one of two teachers in our district teaching the course. I haven't had much...

Veritaseum showcases the Regeron Science Competition where 1 High School student was awarded $250,000 for their work in science: In the video, Veritaseum mentions that only 2000 students typically compete in the yearly competition and that 1 in 50 students will be awarded $25,000 for...

I started off by finding when Fg=Fx: (72)(x)=(31)(9.8) x=4.2193m After this I'm stuck and have a few things I'm confused about: When the penguin's jumping, is there elastic energy? (because the rope's getting compressed? Or maybe not). Also, I know you can use energy conservation, but...

Can someone please tell me what high school chemistry textbook that studying about octet rule is best for an idiot like me?

Homework Statement A bird flying in the air accelerates 2.82 m/s2 north for 4.11 seconds. the final velocity of the bird is 9.09 m/s [east]. What was the initial velocity of the bird? Homework Equations vf=v0+a*t v(average)=(v0+vf)/2 v=d/t d=v0t +½at2 tanθ=opp/adj The Attempt at a Solution...

Hello! First of all, thank you taking the time to read this. I'm a high school student currently about to begin my last year (I'm from Argentina so here we start in March) and would like to study physics in 2020. Because of that, I contacted a university here and they told me that if I wanted...

I have had around 2 year gap after finishing high school. The last 2 years of high school (11th and 12th grade where calculus, coordinate geometry, straight lines, circles, vectors, functions, quadratics, polynomials, probability, permutation etc. are taught here) , I barely studied and some how...

I am the captain of a high school solar car team in the Washington DC area. We were founded last year, and are currently building our second solar car to compete in the Solar Car Challenge, a national competition in Texas. One of the biggest issues we are constantly battling is our lack of...

Hi there, I'm not sure this has been addressed before (couldn't find a post on this). I often see high school physics textbooks (and therefore courses) teach first thermodynamics, than optics, than finally wave motion. Is there a reason for this order or is it sort of random? IMO, The most...

I am a freshman in high school currently and I am taking physics, but for me it seems too difficult even though I think I have tried everything (Reading from the textbook, tutoring with the teacher, khan academy, studying a lot...) The teacher is not very good at teaching, not saying this as a...

So I’m a high school freshman this school year. We have these little presentations by our counselors about planning out our high school years and beyond. In our high school, you only need 3 credits for math (3 years) to graduate. I am currently in Algebra 1. I heard that my school offers these...

I am in a high school physics class and have been recently assigned a mouse trap. We were given a mouse trap, that is all, and sent out on our own to create one. The requirements for this specific mousetrap car are to go forward 3 meters, then backwards 2 meters, and finally forward three meters...

High school student here... Over the past year or so, I've developed an intense interest in mathematics. I work problems every day and I am constantly working to grow my knowledge. As a junior, I am currently in AP calculus and will most likely be eligible for Calc 3 my senior year. I'm...

Hello,I have been accepted for a physics teacher position in a high school. This would be my first job ever. I taught "tutored" students before in my home university for two semesters, and I think I am a good teacher. But, I feel that teaching high school students is totally different. I am not...

I teach high school astronomy. I am in my second of teaching. My bachelors is in physics and astronomy. i was presented with the idea of starting an astro club, but I don't know what I would do with it. The only reason It was brought up is because there is a NASA test facility near here, and I...

I am in the rather unique and exciting position of being able to design an extension curriculum for some gifted Physics students who are in their final year of high school. The goal of the curriculum is to help prepare them for university physics with tools and ways of thinking, without just...

I am considering this text for my high school Honors/AP course. Do you have an opinion of the text and its online Wiley PLUS with ORION Advantage?

Homework Statement Find x. L1 and L2 are parallel Choices: a)100 b)120 c)140 d)150 e)135 Homework Equations From the image, the angles of the polygon in blue should satisfy: 6θ + 90 + 4θ + 2θ + 90 + x = 540 12θ + x = 360 x = 360 - 12θ The Attempt at a Solution I couldn't figure out how to...

For the final project I do at a high school level, we are required to construct an experiment regarding any topic of physics. The experiment should yield quantitative data which can then be analysed through equations or trends. Essentially, I need to be able to discuss and critique the work...

Hello, One of my children is switching to a new school system next year, and I was surprised to find that they cover subjects such as fractional exponents, exponential functions, rational functions and perhaps other topics as part of algebra 1. Their book has "common core" in the title, if that...

I am currently in high school and about to graduate, any way in the past I often threw caution to the wind and ran on ice when I walked home from school. When I was in middle school it went as poorly as one would expect but for some reason I kept trying, in early high school I became extremely...

Homework Statement Hello ! I've to do a presentation about hydrodistillation. I've already done an experiment in class to extract essential oil of lavender with hydrodistillation. So, for this presentation I would like to do something original. By original I mean things that you're not used to...

I am a junior in high school and I am wondering if there are any internships or research opportunities for high school students. Thank you!

I'm currently in high school and interested in physics. I want to get involved in research somehow - whether it be as an intern, or actually conducting a project, so I can expose myself to the process and community. First of all, is this worth it? Will it help me get accepted into a good program...

Homework Statement A 5.0kg block of wood sits on a table with a string running over a pulley suspending a mass. The largest mass that can be suspended without moving the block of wood is 0.75kg. a) Calculate the coefficient of friction in this case. b) What type of coefficient of friction has...

Why do students say, as a typical excuse, "I don't need this algebra stuff because it is not required for success after high school"? What do you say? I say we use algebra everyday and don't even realize it.

Homework Statement Nikhil is probably eating his daily snack at this time. Old Man Miller comes back from the store and takes the 0.150kg sandwich from Nikhil as he begins to run away. Nikhil is running at 7.5m/s away from me when I hit him in the head with the sandwich that was moving at...

Hello, I am a high school junior looking at going into a career in physics. Over the past few years, I have found that I enjoy physics, specifically in "understanding" the atom, and the mind boggling ideas of what happens at that level. I think I want to study particle physics or quantum...

Homework Statement Mariana is volleying with Old Man Miller and returns one of his feeble tennis serves. He serves the ball such that it is moving at a speed of 35km/h [Forward] when she strikes the 0.060kg ball and sends it back over the net at a velocity of 55km/h[Backward]. a) If the ball...

Hey guys! So I will be doing the classic egg drop competition at school and was wondering if I could get some help. The materials I have is : 3 sheets of newspaper 5 popsicle sticks 10 wooden skewers 1m of masking tape hot glue I have to drop an egg multiple times (not sure the heights yet...

Would it be a good idea to take both AP Physics C and AP Physics 2 in my senior year of high school (next year for me)? Does anyone have any experience with this and if so what was it like? Would I be biting off more than I can chew or should I go for it?

Hi everybody. I enjoy looking at other people's handwritten notebooks, as well as what textbooks they learned math and physics from. This evening I came across this article about how Feynman learned calculus in high school by studying Calculus for the Practical Man by Thompson. He kept very...

Homework Statement Lee is riding on her 6 kg skateboard with a constant speed of 2 m/s. She jumps off of her skateboard and continues forward with a velocity of 4 m/s relative to the ground. This causes the skateboard to go flying forward with a speed of 18.5 m/s relative to the ground. What is...

Hi, I'm a high school chemistry teacher trying to develop a lab experience demonstrating combustion analysis. This is usually something we go through theoretically during discussion of percent composition and empirical formula. I'd like to actually perform one. I was wondering if this could...

Hello. I plan on being a doctor when I finish high school, but I’ve had some trouble with science. My grades aren’t bad or anything but right now, I find biology dull and boring. We’re learning about cells, mitosis, and similar stuff and I just can’t get into it. Does this mean life sciences...

I want to pursue the sciences but I got no green. So I joined the BreakthroughJuniorChallenge in the hopes of winning! I would appreciate it if someone as knowledgeable as the people on this forum could comment and share my video submission. This is the link: It's also fine if you guys just...

i'm not really sure what academic topic to put this in, sorry. i'm a sophomore in high school right now, and my school only offers physics in junior year. where should i start? I'm taking pre-calc and trig for math right now, and taking chemistry as a science. i took biology last year, and am...

I may be doing Algebra I tutoring for high school students soon. What are some good resources for exercises and intuitive/novel explanations for topics some students find sticky, etc.? One resource I'm sure I'll be using is the Schaum's Outline of Elementary Algebra, 3ed. What I'd also like is...

Apologies, but this is going to be a long rant to start a discussion. TL;DR: STEM (STEAM), like many forms of government and economics, are great in principle, but terrible when people get involved. At my high school we are required to participate in Professional Learning Communities...

I was wondering if I read Kiselev's geometry books, would it count as a whole high school geometry curriculum? Currently, I am reading his first book, Planimetry, which is coming out as promising. I am planning to self-study geometry.

Do you know of any good websites like MIT News or Scientific American where the cutting edge research is shared in as simple way that a high school student can understand?

Given any real No $$l$$,then prove,that there exist $$a>0$$ such that ,for all natural Nos $$k$$ there exist $$n\geq k$$ such that: $$|2-(-1)^n-l|\geq a$$

Hello, I am in high school in the United States. I am SUPER interested in mathematics and physics, and I have been researching physics and mathematics since middle school. I love it! I love theoretical particle physics and algebraic topology. If I had the choice, I would spend my entire life...

I am aware that the grades would vary from country to country and school to school, but what kind of grades (particularly in physics and mathematics) do people who go on to become physicists (experimental or theoretical) generally tend to have in their last year of high school?