Lesson 1-1: Point, Line, Plane

[LordCornett]

Thanks for helping me test out of Geometry guys. Algebra II here I come!

[bEaChIsThEsHit247]

Thank-you! This really helped me out with my homework.

[oagalthorpe]

Geometry is so easy to understand, but when your teacher decides to give you trick questions that you can't study for like is the vertex of <BAC between points C and B? or do vertical planes intersect? do horizontal planes intersect? Questions asking which postulate makes this true?

[slowrider30]

shoulda done it on paper

[SandstonRedneck2]

hey can you guys actually just use a camera,a tripod and a whiteboard because I know you guys are trying to lead the way but the indians are kicking our A** in a mud hut squatting on the floor

[MrLearn2fly]

@SandstonRedneck2 Hey ! I'm indian >.<

[kamkrp]

thanks!!!! now im not guna fail my class!!!! XD

[NegroGato707]

ben bueno ya gayot yo ali...yeah bords

[krish32e1]

it helps me alot.. this will help me in my geometry class..

[HawkTribe1]

Found this while substituting for a middle school algebra teacher. Worked well to introduce students to the basics of geometry. Had a worksheet from another source that coincided well. Together, students were engaged the full 90 minute block. Thank you!

[f2pGTA]

i'm joking

[slimshady624]

awesome, wonderful explanation

[sl5678112437]

damn this mostly helped me first week of highskool my geometry teacher is old couldnt understand what she's saying but i got it now.

[f2pGTA]

boring!

[cody100red]

@f2pGTA HEY! if YOU hate it GO BE HAPPY-GO-LUCKY I for once would want to graduate then repeat the same grade!

[BlackVansBlueLaces]

@tsunayoshi3: lol same here

[tsunayoshi3]

thanks man, first day in highschool geometry, goofed off didnt listen XD ty bro make more vids

[allen14n]

More of these videos, please!

[CrackleCloud]

Thanks! This Summer I b trying to learn geometry before I learn it at school.

[popavenue808]

thanks!

[BrendelxD]

How do i describe a room using Point, Line and Plane???

[sadjetivo]

Hello,

What is the program that you are using. I'm a first year teacher and I could use something like this.

thanks

[bgaede]

1. The point you drew ('dot') has size. That's why we can see it.

2. If lines go forever (time), they are not geometric figures and don't belong in Geometry. Geometry is first and foremost the study of shapes. You are talking about an itinerary and not about a geometric figure. You are saying that the itinerary is incessant and not that the line is infinite.

3. Infinite dots on a line? Is your line an itinerary of one apple, a row of apples, or a bunch of footprints in the sand?

[bgaede]

4. Plane is a category of geometric figures and not a figure in itself.

5. If planes go 'forever,' (time has nothing to do with Geometry), what is the difference between a triangle, a square, and a circle? What is the shape of figure that extends or expands 'forever'? Are cubes infinite? Do they extend or expand forever?

[xxDoctorWhox]

Dots are abstract .. same for geometry... and (as I learned in school and I bet you did the same) lines are infinite, semi segments are only on 1 side infinite, and segments are finite. And on 1 line there is an infinite amount of dots that can be drawn on it because a "dot" is just theoretically existent... as I said it doesn't have a size. The points have a size because the points in universe are NOT abstract as they are in Geometry.

[bgaede]

1. That's what I'm criticizing: your 'points' are 2d "dots" at the wave of a magic wand and become abstract locations when you wave the wand again. There is no such thing as an 'abstract' "dot". The "dot' belongs to Geometry. Geometry is the study of shapes. There are no 'abstractions' in Geometry.

2. There are no 'infinite' figures in Science, let alone in Geometry. All objects have shape. You are also pointing to a geometric figure and asking me to assume that it is 0d or 1d.

[bgaede]

All geometric figures are 2d and 3d. That's what we have objectively before us. You are asking me to 'assume' that what I am staring at is an abstract concept (i.e. no shape) when it is plain that we are both staring at something that is at least 2d: width and height. If your points and lines are abstractions (i.e. locations, itineraries) they don't belong in Geometry. The mathematicians have been misleading the public and students for 3000 years! (Nothing personal against you.)

[malanga13]

So very interesting! if you have more please send me the links. I certainly learned a lot today.

[RedNickD]

Hi Mr. Anderson! I didn't know you could get this kind of thing to upload on YouTube. You should add more tags to your video.