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Heather Whitehead
Heather Whitehead
Heather Whitehead
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I'm a high school maths teacher in NSW, Australia. I make videos for my students, so all videos have been made with them in mind. My videos explain maths concepts - covering a range of topics from Year 7 maths to the NSW Year 12 Mathematics Standard, Advanced and Extension 1 courses.
Geometric Proofs Using Vectors
9:37
3 года назад
Dot Product
11:34
3 года назад
Vector arithmetic
9:49
3 года назад
Introduction to vectors
4:06
3 года назад
Binomial Proofs
4:47
3 года назад
Binomial Theorem
4:05
3 года назад
Finding terms of a binomial expansion
5:08
4 года назад
Pigeonhole Principle
6:28
4 года назад
Pigeonhole Principle Proof
2:32
4 года назад
Circular arrangements
6:04
4 года назад
Permutations with identical elements
4:13
4 года назад
Permutations with groupings
4:11
4 года назад
Permutation Notation
3:34
4 года назад
Products and sums of trig functions
2:06
4 года назад
Double angle formula examples
5:13
4 года назад
Area of rectangles and squares
4:56
4 года назад
Area of triangles
5:11
4 года назад
Adding and subtracting mixed numbers
3:36
4 года назад
Further absolute value graphs
5:17
4 года назад
Sketching squares and square roots
6:16
4 года назад
Graphing the product of functions
3:36
4 года назад
Graphing the reciprocal function
7:41
4 года назад
Комментарии
@Parthsharma-11
@Parthsharma-11 12 часов назад
❤❤❤❤
@GrahamRees-k8u
@GrahamRees-k8u 7 дней назад
Hey Miss. Am I right in thinking P = 2400 - 240?
@StuartHodgson-x2z
@StuartHodgson-x2z 17 дней назад
Thanks, so this solves the puzzle 2 ? 0 ? 5 = 6 With the answer being 2^0+5 =6
@luismiguelquispevalencia4377
@luismiguelquispevalencia4377 18 дней назад
Hi, nice video. I want to calculate o erro between 2 sensors. S1 is a reference sensor and S2 is a new sensor. Porcentual error could be calculate as Erro(%)=abs(S1-S2)/S1*100 ?
@nin10do97
@nin10do97 22 дня назад
Invaluable, thanks!
@LevOgan
@LevOgan 24 дня назад
wonderful thanks!
@DariusTarere
@DariusTarere 28 дней назад
Thanks 💪💪
@abhishektiwari8374
@abhishektiwari8374 Месяц назад
This is one of the best videos on plotting graph thnx a lot
@x_Azalea_x
@x_Azalea_x Месяц назад
This helped me way more than I expected. Thank you.
@jalsajoji4096
@jalsajoji4096 Месяц назад
How to know which place in west and east
@wintrblvd
@wintrblvd Месяц назад
thank you so much heather 😭🙏
@TanmaySonawane-mz2qh
@TanmaySonawane-mz2qh Месяц назад
👍👍
@Thembs154
@Thembs154 Месяц назад
❤❤❤ nice easy explanation
@ethanmoyo1120
@ethanmoyo1120 Месяц назад
Thank you
@srjz
@srjz 2 месяца назад
2024 anyone
@atomic_boi6115
@atomic_boi6115 2 месяца назад
Helped me a ton thank u!
@dishantkhandelwal6077
@dishantkhandelwal6077 2 месяца назад
Great explanation ❤❤😊
@WasifArshad-tb1nr
@WasifArshad-tb1nr 2 месяца назад
very nice way to explain. quiet easy and understandable.
@martinmanche6484
@martinmanche6484 2 месяца назад
Heather you are BRILLIANT. I love all your incredible instructional videos....very clear and concise...easy to follow/understand. Keep them coming please.
@xeist1713
@xeist1713 2 месяца назад
BEST video on this topic i have ever seen, never write comments but this deserves one
@MichaelAlemayehu-ex5vi
@MichaelAlemayehu-ex5vi 2 месяца назад
You are fantastic girl.keep it up. Thank you.
@Rei_yy
@Rei_yy 2 месяца назад
i dont understand ur timeline for example 2
@PatotoBird
@PatotoBird 2 месяца назад
is she writing backwards to teach us? damnnn
@dog9700
@dog9700 2 месяца назад
Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@ishaangupta3623
@ishaangupta3623 2 месяца назад
Thank you for the help
@zubairmustaqeem8165
@zubairmustaqeem8165 2 месяца назад
9
@khaledqaraman
@khaledqaraman 2 месяца назад
You can say directly that y=1/x can never equal 0 because the numerator 1 is not 0.
@debbiedavies6847
@debbiedavies6847 2 месяца назад
So I am curious, I am trying to help my son, when punching it in on a calculator and google, I get : Sin 40 = 0.745 Sin140 = 0.980, Cos 70= 0.633 cos 110 =-0.999, tan15 = -0.856 Tan165 = -15.041 Are we calculating incorrectly?
@debbiedavies6847
@debbiedavies6847 2 месяца назад
Ha ha my calculator was not set to degree mode
@Kursley.J.Q
@Kursley.J.Q 2 месяца назад
Thank you
@Imakash.
@Imakash. 2 месяца назад
This helped a lot, thank you 😊
@paulz8750
@paulz8750 2 месяца назад
Really helpfull - thanks so much.
@LoisKolip
@LoisKolip 3 месяца назад
Ohh please, you're so helpful, Thankyou very much 😊 ❤
@mehmetdogu384
@mehmetdogu384 3 месяца назад
Ok probability calculation but these calculations are not useful. The useful thing is to understand combinations and permutations. Where are going to use your probability values that you calculated.. No where at all. If it is a problem of discrete random process ,your probability calculations is nowhere to use. Calculate lottery number probabity with getting 6 numbers right in most economical way for people!
@alexjeffery6788
@alexjeffery6788 3 месяца назад
Okey I'm only just getting started at this so don't judge : why does one not mirror the half rectangle through the line and then divide the result by two ? Like the line goes through point a and b, assuming that the images are positive, even if the distances of ya and yb from the x axis are different, one can always draw a rectangle of hight (ya+yb) and of width (xb-xa) and no matter how squiggly the curve of the function, if the rectangle is mirrored than the area of each half of the rectangle is going to be half of the area of the full rectangle right ?
@eeee-um1ko
@eeee-um1ko 3 месяца назад
Thanks bro
@r3duc3r
@r3duc3r 3 месяца назад
you taught normal quadriatics only..?
@Ash-showtime
@Ash-showtime 3 месяца назад
Aleks bouth a motorbike on 1 jan 2014 by jan 1 2016 the value of the mototrbike had reduced by 12% of the value on 1 jan 2015 the value of the motorbike on 1 jan 2016 was 7392 find how much aleks paid for the bike Please solve
@sweetmadam
@sweetmadam 3 месяца назад
Watching this 20 minutes before my test
@YibeltalAyal-mn9dh
@YibeltalAyal-mn9dh 3 месяца назад
Where are you?
@YibeltalAyal-mn9dh
@YibeltalAyal-mn9dh 3 месяца назад
You are gentle man .and then i like it.❤
@estein11
@estein11 3 месяца назад
Math made simply and comprehensible!!!
@bakerboyplayz5254
@bakerboyplayz5254 3 месяца назад
thanks this helped me a bunch
@aminabenzaoui4207
@aminabenzaoui4207 3 месяца назад
for the first question why would the denominator be 5! and not 6! since there are 6 people
@AliciaMazeki
@AliciaMazeki Месяц назад
You are correct she did not read her counting principles that well
@AliciaMazeki
@AliciaMazeki Месяц назад
you divide by the possible outcomes with out any restrictions
@AliciaMazeki
@AliciaMazeki Месяц назад
and she also forgot to take those 2 individuals as 1 unit
@a_plane
@a_plane 3 месяца назад
Life saver fr
@beautifulworld6163
@beautifulworld6163 3 месяца назад
@KenechukwuIgwe
@KenechukwuIgwe 3 месяца назад
Thanks alot
@IshowspeednoobEvan16
@IshowspeednoobEvan16 3 месяца назад
Nice video 😮😮😮
@lucifer___69
@lucifer___69 3 месяца назад
Thank you understood well🎉🎉
@GeGeLimited
@GeGeLimited 3 месяца назад
dang bro, she dipped
@ceciliawangechi8363
@ceciliawangechi8363 3 месяца назад
❤❤❤woooo I love this it's simple and I got it well😊