engVid quiz

Test your understanding of this English lesson

Test your understanding of the English lesson by answering these questions. You will get the answers and your score at the end of the quiz.

Next Question


Thank you.

Profile photo of pavanut2 pavanut2

Hello Adam! I have a request. Could you please make a video on neither (nor), either (or) and both. Thank you!

Profile photo of polluxtroi polluxtroi

      Hi Adam,

      My students want me to teach them about subjunctive mood “if I were” or “If she were” compared to the indicative mood “if I was” or “If she was”.
      I found three opinions. One said we should always use “If I were”, the other said it all depends on the context, and the rest said the use of “If I was” is just a non-standard English.

      Would you please help us understand it better?

      Profile photo of Uki Uki

        Hi Uki,

        It all depends on the context: if it’s imaginary, use were. If it’s real, use was.

        I wish I were rich/–(I’m not. This is a fantasy).

        If I was rude in my speech yesterday, I apologize.– (past situation that happened (yesterday I may have been rude.)

        Does this help?

        Profile photo of Adam Adam

      Hello Adam, I am a new member of this fantastic website and I am so happy to have encountered you and now to be part of your lessons which are perfect. I am from Kosovo and I would like to ask you something. I have e problem on differentiating between feet and meters. Basically we use meters but u do feet. Could you please explain me if there is any difference between them or is just a way of expression. BTW, the comment section is not working that’s why I used the reply one. Hopefully you don’t mind. Greetings from Kosovo!

      Profile photo of Egzz Egzz

Hello Adam ,
Thank you for this lesson
I have never taken time to practice math terms in english although it is very useful , even in every day life especialy when you want to describe the shape of something and give its dimensions or to describe how you get a result .
Let us confirm that sum , difference , product and quotient can be named result .
See you

Profile photo of tsamp tsamp

    Indeed, they can Tsamp ;)

    Profile photo of Adam Adam

Hello Adam.I am a Asian.My English level is at B1 level.what topics should I really have to know for getting 7 band in IELTS

Profile photo of Doloran Doloran

    Hi Doloran,

    It’s not about topics as much as it is about vocabulary. To get band 7 you need enough vocab to be able to read, talk about, or write about any topic.

    Profile photo of Adam Adam

I got 10 out of 10

Profile photo of Julian007 Julian007

Dear Adam,

10:4=2,5 (not 2,2)


Profile photo of adrijana adrijana

    I advice you to think a bit before giving the stupid comment)

    Profile photo of klim1986 klim1986

      Hi Klim,

      It’s better to explain than to attack ;)

      Profile photo of Adam Adam

        Tell Klim that Adrijana’s comment is much better than his rude comment.

        Profile photo of Egghead Egghead

    Hi Adriana,
    You misunderstood Adam’s explanation. Ten divided by four is two, and the REMAINDER is two. That is 2×4 + 2, or: 10/4 = 8/4 + 2/4 = 2 + 2/4; the fractional part is 2/4, and 2 is called the remainder.

    Profile photo of David David

      Yes, I see it, I am so stupid.

      Profile photo of adrijana adrijana

        No worries, Adrianna. Sometimes it’s worth watching twice ;)

        Profile photo of Adam Adam

        You are not stupid. I believe many people did the same mistake. David is a gentleman. Good job!

        Profile photo of Egghead Egghead

      Hi David.
      I’m high school student in Korea, and I actually feel awkward to ask about derivative and Integral as I heard that you are math teacher.
      In derivative, we can say about the local maximum-minimum and global maximum-minimum. In some cases, the local max-minimum and global max-minimum can be equal. I cannot what this means. Could you like to help me for my math studying?

      Profile photo of adun adun

It is a great class! I have worked as a math teacher in bilingual schools in Colombia and I improved my prononciation with this video. Thanks a lot. Is it possible to scratch physics, chemistry and other topics as well as maths? thanks again, you are a great teacher!

Profile photo of pesabe7 pesabe7

    I’ll see what I can do Pesabe7.

    Profile photo of Adam Adam

Wow!Useful lesson, You remind me the school :).

Profile photo of PolinaPony PolinaPony

    Yesterday we won the match and we boarded to the world cup 2018 in your country ( Russia ) . is it easy to travel to Russia 4 watching the world cup

    Profile photo of yasser Daoud yasser Daoud

      i have no idea about it, sorry. i don`t travel in Russia, i live here.

      Profile photo of PolinaPony PolinaPony

        ok thanks for your reply , i am going to travel to Russia in June 2018 , may be i can see you there

        Profile photo of yasser Daoud yasser Daoud

          don`t think so. Russia is huge, World Cup will be not in my city).

          Profile photo of PolinaPony PolinaPony

          ok thanks again

          Profile photo of yasser Daoud yasser Daoud

that is a useful lesson. thanks a lot!

Profile photo of longgia8893 longgia8893

Thank you for your effort

Profile photo of Osama1968 Osama1968

ok Adam,you are so skilled in teaching that we can manage to digest,for once, such a boring matter as math..thank you, as usual.

Profile photo of marvilla marvilla

very useful course

Profile photo of ketty940107 ketty940107

Oh! 5/10 this time. My bad…
I’m afraid I couldn’t absorb many of those math terminology even though you did the great lesson in clear way. Despite, I’m interested about using decimal at sport event announcement.
Thanks Teacher Adam.

Profile photo of Ye Yint Aung Ye Yint Aung

that’s what i was looking for ,thanks a lot Adam

Profile photo of aliziaei aliziaei

Thank you Adam, very useful !!! :)

Funny tongue-twister in your video at approx. min 5:50 (about the fraction 5/12)
Good to know that native speakers have sometimes also the problems with so many consonants.
Especially me too in combination with -th- :)))))

Profile photo of Ralph-GER Ralph-GER

great!!! I am Electronic Engineer, and this lesson
it is very useful, thanks a lot !!!!!

Profile photo of Fabio Chaves Fabio Chaves

Thank you for the lesson a lot!
1. What do we call a root less than cubed? Like the opposite of “2 to the 4th power”. And how is “power” of root called?
2. Are non-parallel lines (on a surface, in planimetry) called intersected?

Profile photo of Cam Cam

    Hi Cam,

    Each root can be expressed as follows: n-th root (x) = x^(1/n). The n-th root of x equals to x to the power of 1/n. So the term is “the n-th root of x”.

    In the Euclidean plane, parallel lines never intersect. If they are not parallel, eventually they will intersect somewhere in the place. Check this one out:https://www.quora.com/Can-two-parallel-lines-intersect

    By the way, if you are interested in maths in English, coursera.org is a great resource of online courses.

    Hopy you find this helpful.

    Profile photo of David David

      *somewhere in the PLANE.

      Profile photo of David David

    Hi cam,
    I’ve written you an explanation. It is waiting to be approved by engVid. Hope it appears here soon.

    Profile photo of David David

      Thanks! I’ll be waiting:)

      Profile photo of Cam Cam

    Hi Cam,

    David gave a very good explanation. As far as roots go, I’m not all that clear beyond square root and cubed root. then it starts to get complicated. Better to find a good math textbook for the finer details.
    As for lines, if they are not parallel, they will eventually intersect as David mentioned.

    Profile photo of Adam Adam

Thanks Adam! I was looking for a lesson like that! I’m a student of Engineering and I didn’t know how to discribe someting in math. Now I know \0/

Profile photo of Fabio Bends Fabio Bends

thanks teacher Adam

Profile photo of abdiweligas abdiweligas

Don´t be so modest Adam. You´re an expert on maths!!!And also a great English teacher. What I didn´t know about you was your knowledge in philosophy. It would be interesting that you teach the basis of the philosophy history ;)

Profile photo of knopfler86 knopfler86

    Thanks Knopler. Not too sure this can be done in a short lesson other than to introduce the main thinkers. I’ll see what I can do, tough.

    Profile photo of Adam Adam

Great lesson, I really need it, You deserve thousands of thanks.

Profile photo of struggleForEng struggleForEng

Hi Adam! Talking of shapes, in portuguese the word egg is ‘ovo’, so when we say something has a ‘oval’ shape it means that thing has a shape similar an egg (ovo). This is interesting that in English oval is oval… Thanks!

Profile photo of John B John B

Te lesson was very crear. Thank you

Profile photo of Milvy Milvy

Very interesting! I know everything about math you taught us in the video but the point is ‘English math terminology’ and that’s exactly what I learned in this lesson. It was very useful!
Thank you very much Adam.

Profile photo of Gilberto Gilberto

Congratulations Adam. It will be useful for me .Everyone needs math and sometimes we deal with things there are a lot of terms related to numbers and statistics , even if you work with stuffs very different from maths. A lawyer , a taxi driver , a dentist , all of us aplly math routinely but without awareness. This class was a great idea!

Profile photo of ravba ravba

I got 09/10. Adam you forgot to tell us about “base ” in geometry . The side opposite to perpendicular is hypotenuse. And the 3rd one side is called ” base”. This lesson brings me back to my golden time ☺ I really enjoyed by memorizing it. Nice lesson. Thanks a lot.

Profile photo of Annie Annie

Thank you Adam, I love math.

Profile photo of Rafael Torres Rafael Torres

The word “plus” is Latin. Is it right to pronounce it as it is written?
Thanks for your answer.
Very useful lesson, Adam.

Profile photo of byte byte

    Hi Byte,

    Plus like bus (with an l) in English. In French it’s plu (ploo). Not sure about the Latin ;)

    Profile photo of Adam Adam

Very thanks. I wish you success

Profile photo of Serik Serik


Profile photo of Cao Hoang Trong Cao Hoang Trong

Thank you Adam… I need more classes like that, but a little bit more pronunciation.

Profile photo of Rodrigo Ribeiro Rodrigo Ribeiro

    I’ll work on it Rodrigo ;)

    Profile photo of Adam Adam

Excellent lesson! Thank you so much!

Profile photo of azayats azayats

thanks teacher for the lesson everything was clear for me .

Profile photo of mansor1987 mansor1987

Hello Adam,
Could you make a video on Seek, Find and Search?
Please sir I have a request, because I’m always confuse in that words.
Thank You.

Profile photo of Rahul Rahul

    Hi Rahul,

    Don’t be afraid to look things up in a dictionary and look for sample sentences to demonstrate.

    Seek = look for something specific (especially a goal) (seek one’s happiness)
    find = reach your goal of looking for
    search = look for something specific or look in a specific place (search for information, search in books)

    Does this help?

    Profile photo of Adam Adam

hello teacher.please tell me if my sentence is correct.
I was an interesting person for others some time back.
but these days “I am missing being interesting”.
Here we have continues form and gerund and after that adjective.plzz tell me if it is right. thank u

Profile photo of ghost rider ghost rider

    Hi Ghost Rider,

    We don’t use ‘miss’ in a continuous form. This is a state verb(like love, think, believe, etc.)

    I miss being interesting = I am no longer interesting, but I ant to be.

    Is this what you had in mind?

    Profile photo of Adam Adam

A basic level of maths as a really interesting explanation and very useful for English students, this video class remembered me the elementary school when I used to start thinking about all these concepts. Thank a lot, teacher Adam, a very sweet video class about maths.

Profile photo of angardiobel angardiobel

Adam, if I’m talking about the gas price, for ex, imagine that it is US$ 1.24, I think I can say ‘one dólar and twenty four cents per liter, but could I say ‘one point twenty four’ or should I say ‘one point two four’?

Profile photo of Dudurito Dudurito

    Hi Dudunto,

    Because money is discussed pretty much every day, it has understood terms. You would likely say gas costs a dollar twenty-four. If you want to be precise, you can say it costs a dollar and twenty-for cents. Money doesn’t use ‘point’ as the point is simply the distinction between dollars and cents.

    Does this help?

    Profile photo of Adam Adam

Thank you Adam. It is really useful lesson.

Profile photo of isakibrahim8315 isakibrahim8315

what is up?

Profile photo of lologendy lologendy

Thank you, Adam!!!

Profile photo of JJulian JJulian

thank you MR.Adam :)

Profile photo of mona reda mona reda

thank you, Adam

Profile photo of wwhpal wwhpal

Very usefull lesson! Tahnks!

Profile photo of varojulio varojulio

This quiz is too easy

Profile photo of RKey17 RKey17

    You cocky fucker

    Profile photo of Patapouf Patapouf

Thank you.
very usefull lesson

Profile photo of FermanHSE FermanHSE

Thanks for nice comprehensive lesson about mathematics and geometry, could I recommend to add a dashboard to monitor my watched videos and pan my future ones. It would be wonderful. great effort and very good team.

Profile photo of Aloraby Aloraby

    I’ll pass this idea on to the administrators Aloraby.

    Profile photo of Adam Adam

    This is coming in the near future. Make sure you always watch while logged in, even now, so that you will benefit when we make this feature available on the website.

    Profile photo of engVid engVid

thanks a lot,it was very useful! but i don`t understand about average\mean

Profile photo of Grypis Grypis

    Hi Grypis,
    If one child is 10 years old and another child is 12 years old, their average age is 11.

    mean is essentially the same.

    Profile photo of Adam Adam

    In language, people will normally use the term ‘average’ in casual conversations. Mean is usually used by mathematicians and statisticians.

    Profile photo of Egghead Egghead

Hi sir Adam…i really like all your videos here at engvid.com… can I ask you a favor? Actually, I am planning to take the IELTS maybe this coming December..My reading is very poor..can you give me some tips or website that i can study what are some strategy to get..I think I am running out of time when i start to read the text because its very hard to find the answers..can you help me?I really appreciate your help…Thanks..

Profile photo of darwin maglines darwin maglines

    thank u Adam very useful lesson

    Profile photo of ahmedkhalilibrahim ahmedkhalilibrahim


Profile photo of Abdo307 Abdo307


Profile photo of zigmund zigmund

Thank you, Adam! Great lesson.
Please explain these phrases: “straight forward” and “cutting edge”. I think I don’t understand those at all.

Profile photo of AlexanderR134 AlexanderR134

    Hi Alexander,

    Straightforward means simple, easy to understand, uncomplicated, direct.

    Cutting-edge means the latest/newest technology, method, etc.

    Does this help?

    Profile photo of Adam Adam

      Hello Adam

      First of all I’d like to offer you my sincere gratitude for all the hard works you guys put in to create these videos and make them available to public. I’d also like to suggest something that I think would most certainly improve this website and also very beneficial to all the audience. The videos are great however in my opinion it would be really beneficial to everyone if you guys could make a PDF format of each lessons and the quizzes where we can download at the end of each video and print them out. This way we can make our own text book where we can study and perhaps highlight the parts we need to study/review more before our exams either TOEFL/IELTS or whatever it would be.

      Thank you in advance

      Profile photo of Avec.Toi Avec.Toi

Thanks everyone :)

Profile photo of Adam Adam

    Yes, it’s become straightforward.
    Thank you a lot for your dedication. We learn a lot here.

    Profile photo of AlexanderR134 AlexanderR134

Great lesson with a less math.

Profile photo of Zenny Zenny

Hello Adam,

First, I would like to thank you for lesson. It is grat :) But I have one a note: If you use different numbers, equals will be more clearly (at least in my case).eg 1+2=3, or 2*3=6, or 12/3=4.
Thank you again and I’m back to learn English :)

Profile photo of Krzys91 Krzys91

Hello Adam,
First I would like to think you veyr much for the diffentes lessons, I am back to learn English “the bigenner”.

Profile photo of Omar28112015 Omar28112015

Although it’s a difficult lesson , i got 10 out of 10

Profile photo of yasser Daoud yasser Daoud

I want to ask you about practicing the language and I have some questions about that .First,do you have a English community I mean like a chatting rooms if you have please let me know how to join it. If anyone knows any websites that can help me in practicing please leave the link of it.

Profile photo of Abdullah A K Abdullah A K

    HI Abdullah,

    I don’t personally, but you can ask others here and do a Google search for these kinds of sites. Just be careful and look out for scams.

    Profile photo of Adam Adam

Hi Adam:

Thank for this and all lessons that you have gave us, I like the math and this was a very interesting topic for me. ENGVID have a presential course for foreigners? I´m from Ecuador South America.

Profile photo of alexiguillem alexiguillem

    Hi Alexi,

    I’m afraid we only have these videos for now, but perhaps we will add some courses in the future.

    Profile photo of Adam Adam

      Hello Adam
      Thank you for responding, but I would like to know if there are face-to-face classes at ENGVID in Toronto.?.
      With any ENGVID teacher, if is other teacher I don´t care, because everyone are good teacher for me.

      Profile photo of alexiguillem alexiguillem

Thanks, Adam. Clear and objective lesson.

Profile photo of Paulo Paulo

Oh, God! I’ve done!!!!I got 90!I’m glad…I thought this would never end.

Profile photo of Braziliansniper Braziliansniper

As a math teacher, I’d say this lesson is very useful. I’ve never watched a lesson like this, with math terminology. I hope I can teach math in English some day, it’s one of my dreams! Though I know about math, I still need to improve my English.

Profile photo of Adriano Martins Péres Adriano Martins Péres

Damm .. I’ve got 5 out of 10 sad 😭

Profile photo of Gmlords22 Gmlords22

    Have you seen the video ?

    Profile photo of Patapouf Patapouf

I got 9 out of 10. But however thank you so much Adam for this nice class. GBU

Profile photo of Karinaadelia Karinaadelia

i answered all the questions corret. thanks alot sir

Profile photo of mahmoud 18 mahmoud 18

it was very helpful, thank you Adam i think i might be watch it 3 or 4 times to understand it more.

Profile photo of amal naser amal naser

Thanks Adam.

Profile photo of OscarDan OscarDan


Profile photo of Lalava Lalava

Excelent class Adam, thank you very much!

Profile photo of Alejandro Sosa Alejandro Sosa

Thank you, Adam. I got 10. I am wondering when do you want to make a lesson about participles you mentioned before in lessons? Please make some lessons about all kind of participles including infinitive. I know Alex has a lesson about that but it is not complete.

Profile photo of Rezajohn Rezajohn

Thank you Adam,
Your lessons are extremely useful and interesting to me. I am new here and so glad I found it :)

Profile photo of Lun4freya Lun4freya

Good day to you, Adam! My name is Natasha, and I’m from Russia. In the video you mentioned two (at least one of them did hold for) numerals that consisted of 3 digits, like 360. But the thing is you didn’t call it as ‘three hundred and sixty’. You said ‘three sixty’ instead. What was that for? In which cases can I come across this way of pronouncing the number (I heard something of card games where they simplified the numbers they had)?
I look forward to your reply & have a good day! :)

Profile photo of borgorez borgorez

Thank you

Profile photo of Boddu Sailaja Boddu Sailaja

Thank you A lot

Profile photo of hossam kamal hossam kamal

I got 10 of 10. Thank you so much, Adam.

Profile photo of patima87 patima87

Thank you

Profile photo of MirelaV MirelaV

Hi adam i want you to explain the verb hurt as noun adjective and as verb thnks

Profile photo of Rabbia bilal Rabbia bilal

Adam, I thank you for this nice lesson .

Profile photo of engVid770 engVid770

Thank you Adam! It was very helpful.

Profile photo of Silax Silax

thanks adam

Profile photo of cycrillee cycrillee

thank you very much teacher

Profile photo of aparlak01 aparlak01

    Hi Ahmet….

    I am also love different country peoples and their Traditions. Moreover I love different country Animals more than people

    Profile photo of Karthik Saravanan Karthik Saravanan

It was not easy :)
but 10/10 many thx

Profile photo of Daro1975 Daro1975

Adamsın ADAM :)

Profile photo of erikufuk erikufuk

Very good math lesson. you’re one of the best teachers on youtube. thanks

Profile photo of Jahd Jahd

I got 10/10! Wonderful lesson!! Thanks Adam!!

Profile photo of robi75 robi75

thank you teacher…:)

Profile photo of Vianey Mendoza Vianey Mendoza

Hello Adam! Excuse me but there is something wrong about the average.The equality 3+2+5+10=20÷4 is not correct.The first part is not equal to the second one.I know what you want to say.However they are two diffrent functions and they must be written separately.

Profile photo of iagiorg iagiorg

Thanks alot for basics of math and geography ,mr. Adam

Profile photo of Manand Manand

Great teacher, Even I’m not good and Math so I made 90 for my quiz. Thanks a million for that.

Profile photo of Jefflay Jefflay

Vert interesting for me because I like mathematics.

Profile photo of Gaga-intelligent Gaga-intelligent

    Hello Gaga! How are you?

    I have just read your profile, and I got delighted to know that you love Jesus Christ so much. Me too. We live so far from each other, but we have the same faith. That is what matters.

    Bye for now!

    Profile photo of Eduardo França Eduardo França

Hello Adam!

What a brilliant lesson!! I am not keen on mathematics, but this vocabulary is really important in our real life. To be honest with you, I needed to use the “multiplication” in a common conversation today and I didn’t know what to say… Now I do!

I am sure making this video wasn’t an easy job for you. Therefore, receive my heartfelt thanks for that.

Take care!

Profile photo of Eduardo França Eduardo França

Very helpful class. Thank you!

Profile photo of Ivoneide2017 Ivoneide2017

Sir can I get any spoken English book?

Profile photo of shyam singha shyam singha

Hello Professor,

I’ve heard about a math expression “3 out of 10” that means (I think) “three tenths”, is this right? Could also be used?

Profile photo of Pedroselem Pedroselem

hello sir,
Do you work in a school that we can join ?
because i need a course in English

Profile photo of ALjarah ALjarah

You and Emma are the Best.
Thank youuuuuuuuuu man

Profile photo of kamal111 kamal111

Hi, how can i evaluate my English level?

Profile photo of shadisaad shadisaad

Hi Adam! My compliments for the lesson! I would like to ask you a lesson about electrical engineering vocabulary, thank you.

Profile photo of Maurilio Matracia Maurilio Matracia

Hi, Adam! thank you for the video.
I think the video is complicated. It is impossible for beginner class; maybe it’s better for intermediate or advanced class. thanks….

Profile photo of Fahmi Yahya Fahmi Yahya

100% !!!! YEAH!!! Thanks, sir :-D

Profile photo of Florence Kho Florence Kho

Excellent lesson. Thank you very much.

Profile photo of zigmund zigmund

thank you very much ♥

Profile photo of mustafa Rafaat mustafa Rafaat

Thank you for this video. It helps a lot when we find this in a text containing numbers and signs of maths.
You are the best !

Profile photo of BE-LLA1 BE-LLA1

Thanks for this vocaburaly-guide! It’s necessary knowledges for me)

Profile photo of Daniel.Dany Daniel.Dany

this basic question fantastic :-)

Profile photo of Anowar hossain Anowar hossain

hello l m basri from turkey l need someone to chat ın engllish to improve my language add me please my account is yldrmbasri@gmail.com

Profile photo of basri1 basri1

Thank you

Profile photo of Abdelrahman Ahmed Abdelrahman Ahmed

I got 9/10. Still okay for me. Thanks for the lesson although you seem not comfortable to teach this. You’re great at Mathematics though. Maybe you could teach us those complicated things about that next time. Just kidding! :) Your efforts are much appreciated. Thanks again.

Profile photo of Carlo Carlo

    9/10 is not “ok”. You made a mistake. Try HARDER.


    Profile photo of Patapouf Patapouf

Thank you Adam.

Profile photo of JojoRN JojoRN

thank you very much

Profile photo of osama.ali3 osama.ali3

Thanks Adam

Profile photo of julioaguiar julioaguiar

if people were aware that engvid.com exists, I am pretty sure nobody would pay for english classes, I love, really love this site, and Adam my favorite teacher.

Profile photo of Faber FM Faber FM

Thanks Adam, you are a great teacher.

Profile photo of Earendil Earendil

Thanks you

Profile photo of Svetlana A Svetlana A

Thanks Adam

Profile photo of Svetlana A Svetlana A

Thanks Mr. Adam.

Profile photo of Alex-1956 Alex-1956

question teacher

how can I say cubed in root

I mean, like squared to square root

Profile photo of adun adun


Profile photo of moeset moeset

Thank you, Adam!

Profile photo of OLeksandr Cherepanov OLeksandr Cherepanov

Hi Adam,

I am Karthi from Chennai. Could you please teach me some Design related terminology.. like “silhouette”, “Hue”, to understand design related job instructions

Profile photo of Karthik Saravanan Karthik Saravanan

Thank you Adam.

Profile photo of jane.doe jane.doe

Thank you so much teacher Adam.
It´s an excellent lesson.
My congratulations to you on that.
Good bye
Have a good one

Profile photo of Metalman Metalman

I got 10/10 :)
tnx a lot

Profile photo of Shadi-1912-loly Shadi-1912-loly

Thanks Adam!
Mathematics teachers must learn appropriate English too.

Profile photo of Paul Melvin Paul Melvin

I Got 10/10

Profile photo of ItzEdge ItzEdge

Where is the mode of numbers?

Profile photo of Sophiethan Sophiethan
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