Introduction to Algebra: Using Variables

[@benedictdube]

Somehow, this is the first video in the playlist that is not new to me. I missed so much of the basics in lower grade school, and suddenly had good teachers in high school. Doesn't seem like it, but this is a huge thing to realize and correct.

[@arssambasha8632]

You need ≈ 5.5 hours to complete the Algebra series (48 videos) !

[@gayfrogcryptid1804]

Gonna have to bing it

[@emilyyy6406]

thats less than a school day! thats kinda funny how u can learn so much in such less time

[@Jesuisunknown]

I put it on 2x

[@nmnmnmnm9075]

@@emilyyy6406 true

[@scratchingcatclaw]

You'll likely spend more or less than 5.5 hours though, depending on your pacing and speed of comprehension. y = 5.5x moment.

[@BusterScruggs554]

The greatest KZbin channel to ever exist. No contest whatsoever.

[@eternity2394]

I’ve been struggling with getting my GED.. I was supposed to graduate in 2003... I’ve been putting it off for the longest time because math scares me. I stumbled upon your video about Alpha Centauri and I liked it so I browsed your channel and thank you for this. I’m going to start studying again and go for my GED. Thank you.

[@userricksanchez]

There you go!!

[@pedrozajnr7475]

This, this right here. The day that changed everything...

[@schneiderjo3206]

mine is today😼

[@rosepierce9382]

Hey, how is it going now?

[@An_ony_mous]

Well, for me that day was 6 years ago. I was in Sixth class back then. 😅

[@An_ony_mous]

And I always feel emotional because I cannot get those days back. I'm 17 now. :(

[@rustybeskar4664]

I learned more in 4 minutes than I did in about a year of 8th grade and 2 years of highschool

[@Hannah-cc1yx]

Literaly same

[@tornadomash00]

i learned that im literally just incapable of visualizing word problems as equations omg

[@neurodivergentsophie8411]

Thank you for saving me again Dave. This will be perfect for my little brother who is struggling with algebra.

[@dontstealmydiamondsv3156]

Note to self: If you have a friend named bobo who likes TV, be sure to never watch for 12 hours in a day.

[@davieboy3814]

I’ve been watching a lot of philosophy videos. I need to brush up on my math so Plato won’t shun me!

[@chrysabentouli6464]

You’re the best teacher I ever had. And I’m 35.. your spirit, animations and explanations rock. thank you!

[@numbobot531]

Your videos are fantastic. Not boring like my math teacher at school but not like "some" KZbinrs who keep using gimmicks and memes-they are HORRIBLE and should get sued. Learning is learning, and sometimes it's not SUPPOSED TO BE FUN. Great job!!

[@ljr6490]

I still think it's fun but without useless distractions

[@HiroshiSuta]

You are very helpful, straight to the point and not wasting 10 minutes of talking nonsense before actually explaining.

[@Monilyth]

ive always found algebra so difficult to grasp but these videos explain it in a way that is so easy to understand thank you

[@rosepierce9382]

Hey, Professor! Do you have any plans for making programming tutorials (Java, C++, etc.)?

[@kinki2474]

It started dividing up to geometry & arithmetics in 7th grade, for me & the arithmetics was both arithmetics & algebra.

[@lovelylilac4278]

That’s one intensely beautiful intro

[@zmohamas]

Wow, now l can understand why do we learn algebra thx you God bless you❤️🙏🏿

[@anthonystark6215]

Thank you, Professor!

[@hexarium7972]

Its all fun and algebra, until the question says *Sketch a graph for this equation*

[@sardajar41]

haha, or draw a curly bracket...:o

[@_Scarf_]

wow thanks this makes so much sense! now i know how many children are in my basement! For legal reasons, that's a joke

[@kaelinhampson8562]

🤣😭

[@jyxn112]

😭😭😭

[@brooka630]

lmao

[@niyagentleman8143]

hahahaha so so funny :)!

[@morimaponce6068]

creepy

[@weekend135]

This guy is awesome. Explains a lot of things and makes it easier to hear and understand. Lots of pics too. He's pretty good.

[@rubinamujahidah1040]

Professor Dave Thanks a lot really 😊 for making a video on this, until yesterday I was horrified even at the mention of ALGEBRA now I am a powerful warrior 💪 😎

[@connorism69]

Ready for a breezy refresher course :D. And you have a new patron.

[@ojayojay4015]

I'm just here to learn.. I was gonna start at advanced math but....

[@ramya8]

Your 1st entry is super 😅

[@renewablenet7210]

Bobo in Filipino means nitwit, that's why I was laughing when I heard his name.

[@codexcodexcodex]

Oo nga

[@BoonXBane]

bobo

[@mathssucker]

Nice one! Good job

[@xrerabesque]

thanks professor dave

[@rodneycaupp5962]

Born in 1950, I just bought the new Texas Instruments " TI-36X Pro Advanced Scientific ". It took me a week to figure out how to turn it off. The Old TI-30Xa had given up the ghost, at about 15 years...

[@briankelly1240]

Wait, no test section to practice at the end?

[@renenasmr2976]

so i’m in year 7 (grade 6 in america) and my work is confusing it shows an algebra equation and then it says find the following: expression, term, coefficient, variable, power and constant please help because i don’t know it i only know what power is

[@utkarshtrichalxpearl4427]

He will explain the following terms in the videos after this.

[@BotOpenAI]

2:45 Imagine he made Bobo the black one

[@MohamedIbrahim-ly4bx]

You’re amazing thanks for helping

[@xxdemonxxpvp5099]

this is where we started realising math is hard

[@A-ANIMATION12]

Is this course a thorough one , appropriate for high level students ?

[@ProfessorDaveExplains]

Yep

[@AmataSora]

I should've learned this before getting a programming course... 😵‍💫😵

[@Jesuisunknown]

2:49 Bobo means stupid in filipino and i am filipino 😆😂🤣

[@BoonXBane]

mas bobo pako kay Bobo haha

[@iamthemiddlechild9684]

Please IM CRYING over algebra

[@AverageJair]

Who is watching this because your teacher told you to for your home learning

[@_Scarf_]

me

[@epicgamesstation2635]

me

[@calours]

Me

[@whatsitsface3652]

Me

[@Starrberri3s]

Me

[@lauracarroll3276]

Hi! ❤️🤠✌️

[@twojadupasmierdzi_xx959]

Yes, I love using algebra to find out how much my burgers will cost me

[@jaylouis8167]

43 yrs old ... studying for my NCRC.. 😢😢😢

[@user-sq8hq9mh9o]

‏‪2:45‬‏

[@bloxychip]

Dave algrebra class

[@whitefeather8387]

Can't believe me as Asian is watching this ecen after learning this like 8 years ago

[@Cueteman]

i don't get it! maybe at the next video

[@calebcrabbe8600]

I love the video it was very educative

[@tGoldenPhoenix]

Thank you.

[@ayeshajuera]

This help me so muchh

[@malikalshabibi]

perfect explaination professor Fave

[@chourouk-gr9qg]

I don't understand why 6 years ago i straggled with algebra XD

[@Marcus001]

okay but can you prove the Riemann Hypothesis

[@ricardomagana1860]

I don’t understand how you got 59 as the range at the comprehension

[@julieeee8389]

You're the best teacher. Hoping that u can also upload ABSTRACT ALGEBRA.♥️

[@pikasup1696]

me who learns advanced math I do not think it has both variables and numbers... i think only variables :(...

[@Certifiedkangkongchips]

bobo is just like me fr fr

[@asifshawon4511]

😂😂

[@pamelafrancis4476]

I like the whirlwind tour. Due to my slowness you lost me at 2:39, thank god for the pause button however.

[@jasonruzicka7954]

I love you

[@Alexander-sr7qm]

1:05 😂

[@SaimMalik-ey3cd]

❤❤❤❤

[@ichinirusan]

FUN FACTTTTTTTTT 'Bobo' in the Philippines means 'idiot' HAHA

[@joethomaszachariah724]

Thanks a lot professor....

[@alyxkrieger6764]

Whoa, you're also a comedian? lol

[@florencenn9557]

HI ! your videos are awesome! Would you please do some about Lines, Angles and Shapes ( Construction of Circles and Triangles etc.)

[@ProfessorDaveExplains]

don't you worry, i'll get to all the geometry soon enough!

[@florencenn9557]

Professor Dave Explains Great! thank you

[@niyagentleman8143]

professor Dave , just to say UR AMAZING BRAIN :)!

[@PotatoChips-jy9pk]

hehe yeah!! I already know this I just like watching it lol

[@zerosandones7547]

2:48 Bobo 😂😂😂😂 Hello my fellow Filipinos 😂

[@thealgomanxr]

Or Indonesians

[@galaxygkm4696]

kumusta ahahah

[@Santiago-ce3gs]

Thanks for the cool video

[@mouniqquemasson16]

not cool

[@jamilahann1212]

if yall didnt know "bobo" means stupid in filipino

[@codexcodexcodex]

Oo nga

[@sakshamgoel1957]

Gr8 video sir

[@tabiathompson4636]

Make it more easy

[@pavlo3511]

Ah the good ole days

[@tanyacameron756]

I CAN NOW DO MY WORK BETTER

[@Rohitsingh_16]

Thank you sir

[@AmarSingh-df5vq]

Good👍

[@AmarSingh-df5vq]

Good👍

[@gulabmishra1362]

Nice sir

[@vi_6a_263]

Best teacher 👍

[@jancarlvillareal1133]

Im here because of module

[@alexthai2456]

Professor Dave.... I want to ask you is there any way that we can weight the weight of a tree or plant without using a scale or cut the tree down??? please respond soon..... thank you Professor

[@ZopcsakFeri]

I have an idea: you build a big cylinder around the tree, and then another one without the tree. Fill up both with water, measure how much water you could fill in there, subtract one from the other = you get the volume of the tree. Now measure the moisture content of the tree (or if you cannot measure it, then assume about 50% water content if the tree is alive). Multiply this volume by the specific mass of water = you get half of the weight of the tree. Then you multiply the other half (of roughly the other 40-45% if you could measure the moisture content) of the tree volume with the specific weight of Carbon. That will be the other half weight of the tree. Add the two together, and you get the full weight of the tree. Unfortunately I can't tell right now how to include the roots - I think this method only works for the part above the ground. It's almost mindnight now and I haven't slept in 2 days, so let me know what you think :D I might come up with less insane ideas when well rested.

[@ZopcsakFeri]

Well, as for the roots... maybe assume the volume of the branches, so from the full above-ground volume of the tree you would have to subtract the cylinder that's the tree trunk (d/2)^2*π*h, where "d" is the diameter of the tree, supposing that you cannot measure the "radius" directly), "h" is the height of the tree trunk. Now that you have the volume of the tree trunk, you multiply it with the specific weight of water and carbon in the ratio of the moisture content, subtract that from the full mass of the tree and you get the mass of the branches/canopy. Finally assume that the branch volume roughly equals the root volume, so you add the branch mass again to the above-ground mass of the tree, and thus you get the TOTAL MASS of the full tree without having using a scale or cutting it down.

[@nyasajain5411]

sir u are the just great loved ur videos...... waiting for ur next videos....jesus

[@oliviagalloway-christie7645]

I love this video

[@Hala-vr9sq]

I swear my teachers were criminals bec they didn't teach me like this.

[@rahulchittur908]

Can you make videos for calculus?

[@ProfessorDaveExplains]

don't worry, i'll get there! just gotta hit everything leading up to calculus first.

[@UDAYKUMAR-jd8xr]

Please start making videos on slightly complex phenomenon

[@ProfessorDaveExplains]

patience is a virtue! i'll get to everything in due time.

[@jancarlvillareal1133]

:(

[@kripashankarshukla4073]

Sir what is your real name?

[@ProfessorDaveExplains]

dave, of course!

[@Ferroresonance]

Idiot

[@ronaldmike9906]

i like alader. and math

[@lanzibangli1259]

2:25 i got a McD ad before this

[@antiiilluminatisquad5365]

Why are the textbooks speaking Greek?!

[@SaimMalik-ey3cd]

++++❤🇮🇷

[@James-jb1do]

0:01

[@topiado2073]

Eager to chat with you sir

[@Zaikun1]

In tagalog bobo is an offensive word

[@bisexual_bicycle8719]

holaaaaaaaaa jajajajajajajajajajajaaaaaa

[@billybutche]

Bobo what?

[@Breakaway69420]

i hate my math teacher

[@krisvalenreyagub6356]

bobo means stupid in filipino hahahaha

[@yuugi5185]

Ah shit

[@GnD153]

Um...

[@MzNikki2u]

When get my high school diploma my dad want to see it in face well this won't be easy😞😞😞😞😂😂😂