/r/matheducation

Photograph via snooOG

/r/matheducation is for discussions of math teaching and pedagogy.

r/matheducation is focused on mathematics pedagogy (the teaching of). Please avoid posts that are related to homework or other "How do I solve this?" type questions. There should be an emphasis on usefulness (such as good internet resources or ideas for how to teach a concept).

Note: This is not a subreddit to self-promote your blog, website, or YouTube channel, but rather to point out resources you've found that you could actually see bringing something useful to the art of math teaching.

Just explaining a single math concept isn't a good fit here, but something that explains an innovative way to teach a concept to others is fine.

The guiding principle for content here should be: is this something related to the teaching of mathematical concepts?

Related reddits:

/r/matheducation

27,917 Subscribers

4

Is pre-calc enough for calculus?

I'm taking a 4 credit pre-calc over the summer. I have to take calc 1, 2, 3, and something after, and I was wondering if pre-calc would be enough since I don't have time to take another math before calculus. I never took trig, I only did basic trig problems in physics and Algebra 2 in high school. Should I do Khan Academy or something or should I be alright? thanks

5 Comments
2024/04/03
02:03 UTC

2

Game Theory Ideas

Hi! I'm looking to teach mini unit on Game Theory to my Discrete Math class (12th grade). I have some materials about decision making, zero sum games, saddle points, etc. but was wondering if anyone had some activities/ applications to look at or other ideas to bring up to my class. Thanks!

1 Comment
2024/04/01
16:00 UTC

31

Future of math tutoring, especially considering AI

I'm on disability in the U.S. They allow me to work a little bit without losing my benefits. 6 years ago I discovered that I was able to do math and CS tutoring and it was great for my mood to have some responsibilities and contribute to kids' lives.

I started with math tutoring, mainly prealgebra and algebra, but honestly, I didn't do it well as I hadn't studied any pedagogy yet. I switched to doing CS: competitive programming and AP Computer Science. I worked as a programmer before becoming disabled, and I studied pedagogy at this point, so I am pretty good at CS tutoring.

However, I'm burning out on CS tutoring and I'm thinking of switching back to math.

  • CS is all online. In-person tutoring has a greater effect on my mood, and I just enjoy it more. When I last did math tutoring in 2019, there was a demand for in-person math tutoring.
  • Competitive programming has been getting rapidly harder in the past few years as more kids take it up and they need hard tests to filter out the best. What that means is there are a lot of kids who come to me, but they lack the raw talent and available practice time to score well on today's tests, so they and their parents are frustrated.
  • Most of my AP Computer Science students expect me to do the work for them.
  • Tutoring competitive programming takes a lot more unpaid preparation time for various reasons.

So, can I be a good math tutor? I attended a strong engineering college and took a ton of advanced math, so I'm pretty good at math.

However, I haven't used math in 30 years (except for tutoring algebra in 2018-2019). Right now I'm reviewing precalculus and studying precalculus pedagogy so I can add that class to my offerings. Next I hope to review calculus and calculus pedagogy.

I'm still doing CS tutoring for now and plan to update my Wyzant profile to indicate I'm doing math too, starting this fall.

However, as I consider the switch back to math, I'm concerned about AI taking over. I'm sure that some parents will love the affordability of AI. On the other hand, some people will argue that a good in-person human tutor can add that human touch. Maybe the human touch will still be of great benefit even ten years from now. Or at least, the affluent families will believe it's still of benefit and will hire human tutors.

I do live in an affluent area.

By the way, I only have 6 to 8 lessons a week due to my difficulties working. I'm not trying to make a living at this. The supplemental money is very helpful for paying my medical expenses, and having work responsibilities is very good for my emotional outlook (it SUCKED when I wasn't working at all).

So I'm curious what people here think about the viability of in-person math tutoring.

30 Comments
2024/03/31
00:08 UTC

8

What should I be practicing and learning to prepare me for calculus?

An opportunity has appeared that will allow me to get a Mechanical Engineering degree, debt free. The issue I'm having is that I haven't been to school in 10 years. What should I be studying and practicing in my free time to help prepare me? I understand it will be heavy on calculus which Is a class that I have never taken.

9 Comments
2024/03/30
22:06 UTC

0

Printable Kindergarten Addition and Subtraction Worksheet, HomeSchool Worksheet, Math Worksheets 10 Printable, Kindergarten for kids Visit my Etsy shop https://www.etsy.com/shop/Akkudigital

1 Comment
2024/03/30
16:05 UTC

1

Looking for early math educators to partner with on a new kind of math app

Hello math educators, I need your help!

I am building a new kind of math learning app to help early elementary students discover and engage positively with math in a genuine way. I want this app to be useful in a classroom setting, but I need to talk to more teachers to make sure I am building the right stuff. I am looking for teachers who may be interested in sharing their experiences with learning apps, brainstorming ideas, and maybe trying out early versions of the app and providing feedback. Especially teachers of Kindergarten through 2nd Grade. Eventually, I’d like to include some teachers in my advisory board (which doesn’t exist yet).

My name is Daniel DeKlotz. I’m a software engineer and a parent of young kids (twin 4yo boys). I started this project because I want something different for my kids than the drag and drop math apps that are currently available. I think drawing may be a way to engage better learning and more agency and positive affect in young kids. You can find out more at https://www.abacuslearning.app/.

If you’re interested, you can DM me or email me at daniel@abacuslearning.app. Also, if you know any other teachers who may be interested, please feel free to forward this email to them. Thank You!

0 Comments
2024/03/30
15:58 UTC

1

Guide for solving triangles

1 Comment
2024/03/30
14:57 UTC

10

Trig word problems with diagrams

10 Comments
2024/03/30
14:56 UTC

2

Ignite Your Drive: 13 Practical Tips to Stay Motivated in Your Studies

0 Comments
2024/03/30
10:44 UTC

3

Math courses online for masters program

Hello all. I'm a licensed math teacher from the US. I would like to enroll in a masters degree program for math education, however one of the requirements is more undergrad credits in math. Is there any online programs I can apply to and take more college level math courses to fullfill this requirement (brushing up on my math skills wouldn't hurt either). Much appreciated for any info!

0 Comments
2024/03/30
03:01 UTC

1

An interesting geometry problem!

1 Comment
2024/03/30
00:56 UTC

0

J

0 Comments
2024/03/29
19:59 UTC

5

I am trying to find a youtuber who teaches maths

Hello, I know this might be a very silly question, but I am trying to find a youtube channel where the youtuber teaches math with pen and paper, I had seen his vids about 2 years ago for discrete maths related videos, but my dumb brain didn't think of saving any videos or links of the video. Today I need to get back into some mathematical topics and this guy was great at it, along with mathematics videos like linear algebra and number theory he also had biology related videos. Please if anyone has some idea who this guy was please share a link to his channel. Thank you.

14 Comments
2024/03/29
15:02 UTC

92

My daughter received this children's book on growth mindset in math and it's really well done

5 Comments
2024/03/29
11:35 UTC

3

Could you guys please answer if I explained Radians correctly?

In one of my recent posts, I talked about many different things high-schoolers opting for Science will have to face. Among those, I also just talked about the formula Arc Length = Angle (in radians) * Radius to those who will learn Advanced Trigonometry (we don't learn the Unit Circle here). I should note that they have already learnt circle theroems, such as angle subtended by the centre/by the segment, so understanding such language is second nature to them.

Now, someone approached me on DMs asking me if I could provide him with the derivation of it. Instead of the derivation, I provided him with an explanation, which is as follows:


Me: See, try to understand the problem first instead of delving into the derivation. Our forearm and upper arm make a semicircle. Assume that the forearm and the upper arm are the radii of that semicircle. Assuming that the elbow is the centre of that semicircle, the elbow is moving/rotating, so the motion of the arms is also the motion of the elbow.

When the forearm rotates from one place to the other, the change in angle can easily be observed.

The guy: So the angle is proportional to the arc length.

Me: Now, let us focus on the angle subtended by the forearm and the upper arm for a second. It's the movement/rotation caused by the elbow. Now, in radians, there's something quite special.

https://preview.redd.it/w11uzygfo2rc1.png?width=224&format=png&auto=webp&s=acde35bbe146dc3d37a50086101e4c9cfc59c98e

To be precise, I am talking about this. 1 radian is equal to the angle subtended by the arc whose length is the same as the radius. What's the formula for the circumference of the circle?

The guy: 2pir

Me: Exactly. So, if 1 radian has an arc length of r, then 2pi radians have an arc length of 2pir, which means 2pi radians basically represent a full circle, just like 360 degrees.

The guy: so 1 rad = radius?

Me: A circle which has an arc from the centre, where angle subtended = 1 rad, has its arc length = radius. From here, the main formula arrives. We are rotating a point (it's theoretically impossible since we are rotating an object in the 0th dimension but this is what happens), and that's how an angle is formed. Now, by using the unitary method, we can generalize this:

For x radians, the arc length is x.r.

Therefore, Arc length = Angle (in radians) * Radius.


Now, I have no idea if this explanation could be refined further, but I myself reunderstood angle to be the rotation of a point. Is this explanation even plausible? Could I communicate it well?

4 Comments
2024/03/28
13:08 UTC

0

Mastering Your Time: A Guide to Creating an Effective Study Timetable

0 Comments
2024/03/27
15:04 UTC

10

Math for a student with severe physical writing problems

Ні,

My 9yo student (son) is really good at math, picks up new concepts really quickly.

But he has a severe physical writing disability/impairment, he can barely form letters and numbers accurately, his number formation is large and difficult to read. He also fatigues incredibly quickly. I have been teaching him math using a variety of methods including a white board, scribing for him, or using number magnets.

I can see that he needs to become more independent with writing his maths, and the only way I see this happening is by using a computer application.

  1. What computer application/s allows a young student to learn how to do the math calculations/and working out for addition and subtraction using the algorithm method?

  2. What application would work for the future, to be able to do long division, or algebra, trigonometry, etc?

  3. Can you suggest a place that I can go to learn how to use these applications?

I need to learn how to use these methods competently, before I start to teach him.

Thank you for your help.

23 Comments
2024/03/27
13:52 UTC

1

Master in combinatorics/optimization

I will soon graduate with a dual degree in informatics engineering and statistics and I am starting to see options for grad school, besides statistics or cs master one that calls my attention is the master in combinatorics and optimization (or related topics), so I would like to know if someone knows if with this background is possible to get in.

For more information, I have seen Calculus 1,2,3, linear algebra, geometry, differential equations, numerical analysis, a course of operations research, and everything else a bachelor in statistics and informatics would have, what I lack mostly are pure math courses but I do not know if this is important, I also have the grades requirement above of what they ask, and I might graduate with a paper published in statistics and a few participations in different events of statistics, I do not know if the country matters but I am from Latin America. Do you think this would be enough to be admitted to some good college? What else can I do to have better chances?

0 Comments
2024/03/27
03:19 UTC

10

A source of HS math worksheets

Right now my school has a subscription to Twinkle but they don't have enough content for HS math so I'm looking for a resource specific to math. For example I was looking for a worksheet on function notation and Twinkle didn't understand the request. My school has a number of remedial classes so, at a minimum we need to cover middle and high school, but ideally there would be k-12 content. What are your suggestions.

23 Comments
2024/03/26
14:38 UTC

4

Amazing site that has lots of resources and information that is geared specifically for mathematics.

This site has lots of resources on textbooks, workbooks, online classes, and much more. It is full of resources relating to math!!

3 Comments
2024/03/26
04:06 UTC

6

has anyone seen any good examples of misleading graphs recently?

I am trying to find some misleading graphs with articles that are trying to use them as evidence, preferably from the last year, but I am struggling to find anything clearly terrible from a national news source.

7 Comments
2024/03/26
03:32 UTC

1

Group Project Power-Up: How to Collaborate Effectively and Avoid Group Work Disasters

0 Comments
2024/03/25
14:14 UTC

3

What is a paradox that tells the truth? (Quine; De Morgan, Russell)

What are true paradoxes and false paradoxes?

00:00 presentation

00:50 Quine classification

02:34 Paradox telling the truth

03:30 Paradox saying false

05:25 Antinomian paradox

05:45 De Morgan paradox

07:40 Proof of Russell (I am the Pope)

08:50 Corrected exercises

In this video you will also have the presentation of De Morgan's paradox, and also a funny proof given by Russell to prove that he is the pope, and finally corrected exercises.

In another video, we will talk about antinomic paradoxes which are the 3rd category of paradox. This classification was proposed by the famous logician Quine.

https://youtu.be/k0Ecy8NvdJE?si=9BMUvyUFg3h_NubO

0 Comments
2024/03/24
15:10 UTC

3

Math Masters

Besides Cambridge Part III, what other universities (mainly in Europe) offer rigorous Master programmes in Mathematics?

From my research, Part III is clearly the most prestigious MSc but I was wondering if there were any other programmes of the same quality.

Thanks!!

0 Comments
2024/03/24
00:16 UTC

5

PhD at University of Alabama or Masters first at KU Leuven?

I’m sorry if this isn’t the right subreddit. Please direct me to the right one if it’s wrong. Context: I’ve got a PhD offer at the University of Alabama, Tuscaloosa and a Masters of Mathematics offer at KU Leuven. I’m currently interested in analysis, particularly functional analysis. Alabama doesn’t have anyone working in that area whereas Leuven does. The problem is that I am being offered stipend as a GTA in Alabama whereas in Leuven I’ll have to spend quite a lot of money. I’m not sure if it’s worth spending so much money for a masters from there. I plan to go for a PhD later on regardless and then for a PostDoc and stay in academia. Any advice would be extremely helpful.

2 Comments
2024/03/23
17:19 UTC

2

Advice and Suggestions for enhancing a Math Game

Hi MathEd community,

My name is Timothy Charoenying. I am a former elementary school teacher, and earned my doctorate in math education from UC Berkeley.

Recently I’ve updated a math game that I first designed while working in the classroom.

Math Agent is a riff on the Pokémon style card game, except instead of using monsters to “battle”, players use concepts from 3-7 grade standard such as prime/composite numbers, pi, and perimeter to play.

Hoping the community here can provide friendly fire and suggestions for features to enrich the pedagogical potential (or just fun factor) of the game to reach a broader range of learners.

I am a solo indie developer, and not representing any larger company/corporate interest. Just an educator who likes developing games for learning ;)

Thanks for your help!

https://youtu.be/CLqiZ9SLLNc?si=mK03T7OJC088S2t3

0 Comments
2024/03/23
11:53 UTC

2

How Can I Turn This Into A Project?

I want my Algebra 2 students to be able to recognize and describe graphs from a list of equations. Including linear, quadratic, cubic, quartic, quintet, circles, ellipses, logs, etc. All kinds. How can I turn this into an EOY project...not just worksheets?

9 Comments
2024/03/23
00:59 UTC

Back To Top