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- Видео 58
- Просмотров 4 048 884
Starfish Maths
Великобритания
Добавлен 30 июл 2015
Hello!
My name's Sara and I created Starfish Maths to bring A level Maths teaching in bitesize videos by topic. I wanted to make Maths personable, engaging and as clear as possible. I use plenty of examples and exam style questions for you to try - always watch with pen and paper and have a go yourself. I speed up the working in places to encourage you pause and play, working at your own pace.
Whether these videos serve as an introduction, general practice or revision, I hope they are helpful to you.
Keep practicing and enjoy!
www.starfishmaths.com
If you find this content helpful and would like to support me, I would be very thankful!
www.buymeacoffee.com/starfishmaths
Online personal tuition £60ph. Enquire at starfishmaths@gmail.com
My name's Sara and I created Starfish Maths to bring A level Maths teaching in bitesize videos by topic. I wanted to make Maths personable, engaging and as clear as possible. I use plenty of examples and exam style questions for you to try - always watch with pen and paper and have a go yourself. I speed up the working in places to encourage you pause and play, working at your own pace.
Whether these videos serve as an introduction, general practice or revision, I hope they are helpful to you.
Keep practicing and enjoy!
www.starfishmaths.com
If you find this content helpful and would like to support me, I would be very thankful!
www.buymeacoffee.com/starfishmaths
Online personal tuition £60ph. Enquire at starfishmaths@gmail.com
A level mechanics - forces on a slope and friction (part 2)
This video builds on part 1 to explore a more complex problem of forces on a slope with friction.
Hope it's helpful!
www.buymeacoffee.com/starfishmaths
www.starfishmaths.com
starfishmaths@gmail.com
Hope it's helpful!
www.buymeacoffee.com/starfishmaths
www.starfishmaths.com
starfishmaths@gmail.com
Просмотров: 4 940
Видео
A Level Maths exam question on functions - differentiation and graph transformations
Просмотров 5 тыс.2 года назад
This A level exam question explores the graph of a function, and involves differentiation with exponentials, the product rule, finding stationary points, graph transformations, and the range of functions. Lots of skills to practice! Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
A Level Maths exam question on circles
Просмотров 3,7 тыс.2 года назад
Today's exam question is on circles. The first part is pretty standard, the second part a bit more creative. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
A Level Maths exam question on factor theorem, algebraic long division and integration
Просмотров 2,4 тыс.2 года назад
Today's exam question is from an AS paper, all about a polynomial. We use the factor theorem, long division (and I have a new method for that today) and integration to find the area under the curve. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
A Level Mechanics - Forces on a slope and friction
Просмотров 1,9 тыс.2 года назад
This video is an introduction to managing and resolving forces on a slope. I show you how to label forces, break them into components, write equations and solve them. We use a block at rest on a rough inclined surface. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
A Level Maths exam question on trigonometry multiple angles
Просмотров 1,3 тыс.2 года назад
Hello! Today we have an A level question about trigonometry, using some identities and multiple angles. Hope it's useful to you! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
A Level Maths exam question on integration by substitution
Просмотров 4,6 тыс.2 года назад
This is the first video of a more juicy exam question, shot very simply off my screen. A bit different to my usual teaching videos - let me know what you think in the comments! Is it helpful? Do you want more and if so are there any questions you would like me to look at? www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
A Level Mechanics - Newton's second law, mass and weight
Просмотров 2,3 тыс.3 года назад
This video practices using Newton's second law of kinematics, f=ma. A specific example of this distinguishes between mass and weight. Three examples are used, the last of which is on a slope. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
A Level Mechanics - Resolving vectors on force diagrams
Просмотров 2,7 тыс.3 года назад
This video begins to explore basic force diagrams and resolving vectors. It assumes some knowledge of vectors, which is covered in a previous video. Questions involve finding resultant forces, and using equilibrium. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
A Level Mechanics - Vectors
Просмотров 6 тыс.3 года назад
This video covers the basics of vectors for A Level Maths - starting with how to draw and write them, add them, find the magnitude and direction, find vectors between coordinates, position vectors, and vectors in 3 dimensions. Hope you find something useful! Enjoy www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
Binomial approximations
Просмотров 18 тыс.3 года назад
Following on from simple binomial expansions, this video considers when the power is not a positive integer, and a binomial expansion can be used to give an infinite series for approximation. I cover 3 examples, all exam style. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
Proof by contradiction
Просмотров 13 тыс.3 года назад
The second of 2 videos on proof - here we have proof by contradiction. This is a very powerful technique which involves proving that the opposite of a statement can't be true. I cover 5 examples, each full of tips and tricks which you may use again in similar problems. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
Proof - counter examples, proof by exhaustion and direct proof
Просмотров 3,9 тыс.3 года назад
This is the first video on proof for A Level Maths, covering disproof by counter example, proof by exhaustion and direct proof by deduction. I use a few examples of each, including expressions for odd/even numbers, consecutive integers and rational/irrational numbers. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
Sin and cos rules
Просмотров 2,6 тыс.3 года назад
This video covers the sin and cos rules for triangles, as well as the formula for the area of a triangle. 3 exam style questions included. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
Geometric series
Просмотров 2,3 тыс.3 года назад
This video covers geometric progressions, sequences and series. We derive formulae for the general term, the sum of the series and the sum to infinity of convergent series. 3 exam style questions covered. Enjoy! www.buymeacoffee.com/starfishmaths www.starfishmaths.com starfishmaths@gmail.com
Maxima and minima - differentiation for optimisation
Просмотров 27 тыс.3 года назад
Maxima and minima - differentiation for optimisation
Integration using partial fractions
Просмотров 27 тыс.3 года назад
Integration using partial fractions
Further integration - reverse chain rule, exponentials and logs
Просмотров 68 тыс.4 года назад
Further integration - reverse chain rule, exponentials and logs
The Product and Quotient Rules for Differentiation
Просмотров 110 тыс.4 года назад
The Product and Quotient Rules for Differentiation
Integrate 1/xlnx by parts
Nice video... I had a question. Both the methods here explained are giving different answers. Is that okay?
👎
Brilliant, just brilliant,wonderful teaching , thank you very much. You've got yourself a new subscriber
I can't thank you enough
Ur 6th answer wrong
I am a 10th grade student preparing for competitive exams and you have made this concept crystal clear for me. I appreciate that a lot ❤❤
Watching in 2024
I didn't understand what I wanted to
This account is really starfish
Maybe I will understand this now
Your explanation style is awesome i did it very easily.
I just have one question in the last one u did why didn't you half the 8x by the 1/2 cause we did it in the other example
sorry in minutes 4:46 number five in the solution of that question where x to the power of -1 multiplies 1 in the bracket and the index is added wont it be 1-1=0
Idk how but you make maths so easy! Anyway keep doing the great work! Thanks!!
This video has to be inspired by heaven
She's good in this shit🔥
Thank you for your time and effort to explain in a way that we can understand easily.
Someone explain me please y=(2x+1)(x-3) become y=2x^2+x-6x-3 ???
By binomial x binomial method😅
Multiplication relation. We do 2x into x then 2x into -3 then 1 into x and then 1into 3 Now add them altogether
Thank you so much for taking the time to explain this so clearly. Your explanation was incredibly helpful and easy to understand. I especially appreciated the way you broke down the information into manageable chunks. It really helped me grasp the concept fully. Now I feel much more confident in my understanding.
How did you get 2a in the last question after second derivative 2a?
With starfish everything is just easy
You are too fast in your solving😩
What if I have a inverse trigonometry function on the bottom part??
It’s just a pity it was released 7 years ago, she’s all grown now ❤❤
You’re really good ❤❤
was here
W teach
The writings were too small for me. I couldn't make out most of what you wrote down. Sorry
Please cross-check the solution of the problem in the 5:05 part of this video, there seems to be a problem with the final power of the first x. Thanks so much
Why at first the power 3 need to times the 5 and become 15
Chimestry
Very nice tutorial. Just to point out a slight error at 5:11 The power of X at this point, should be 5/2 instead of the -3/2 that you wrote. Unless I'm missing something
no, you are right
Y do I feel like the last one seems wrong?
This is very wonderful thank you so much
You confused me in the second one why did you change the positive sign to negative
A whole number times a negative number gives a negative number
thank you
How does it become ( 2a ) its the last question: when finding the second derivative of : -2=-a+b And how it become: d^2/dx^2 = 2a <- ??
Finally I have obtained what I ever wanted on this topic, excellent work madam.
Amazing video. You explained it so well. Thank you so much ❤
Very helpful
Superb explaination keep it up medam
Thank you very much 😊
Please, aid me to have all the examples solved.Thank you.
Please, how can l get all the perfect examples being solved as a guide. Or notes to rely (depend) on?
Thank you so very much for doing all of this explanation, you made my life in mathematics easier with CAST diagrams💯
Damn who ever created those formulas is a made man...
newton, made all this in order to make his calculations in physics easier! he invented his own math in order to solve various physics equations. & fun fact, in olden days it took them years to find various formulas, related to surface area & volumes, but with differentiation & integration together , you can do it in about 10 minutes!