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Challenges from the community

If you take a look a the topic pages, you will notice that we've greatly streamlined the experience. Now, when you select "Take quiz", you will see the various concept quizzes that help you build an understanding of the chapter, and also a collection of the best challenges from the community. I encourage you to give these quizzes a try, especially if you are interested in learning more about the chapter.


For problem creators, we would appreciate your help in creating problems with missing challenge quizzes. In particular, the following chapters could use more Level 1 and 2 problems:

Basic Mathematics: Percentages
Algebra: Quadratic Discriminant, Polynomial Inequalities, Logarithmic Inequalities, Function Graphs, Rational Functions, Floor and ceiling functions
Geometry: Volume, Surface Area, Properties of Triangles, Similar Polygons, General Polygons, 3D Coordinate Geometry
Number Theory: Integer Sequences
Calculus: Polar Equations Calculus
Combinatorics: Data presentation, Distribution into Bins, Rectangular Grid Walk, Expected Value, Introduction to Recursion
Logic: Grid Puzzles, Arithmetic Puzzles
Computer Science: Objects, Complexity / Runtime Analysis, Sorting
Mechanics: Circular motion, Conservation of energy, Angular momentum, Rotational kinetic energy
E&M: Electric fields, Magnetic fields, Magnetic flux

Once we have numerous good problems in the chapter, we will curate a great challenge quiz which will be used to introduce other members to the chapter. Thus, your problems will have a high chance of being featured :)

Note by Calvin Lin
1 year, 1 month ago

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The topic pages are looking great!

I have shared 15 problems on Circular motion in this set: Circular Motion Practice. Most of the problems in the set are simple, but some are not! Pranshu Gaba · 1 year, 1 month ago

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@Pranshu Gaba Oh, that's a nice set :) I've added them to the list. Thanks! Calvin Lin Staff · 1 year, 1 month ago

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@Calvin Lin Thanks! :)

I saw that all the problems have been added to the Uniform Circular Motion skill. However, not all problems have uniform circular motion. In some of the problems, the motion is non-uniform. We could add a skill for Non-uniform circular motion, in the chapter Circular Motion. Pranshu Gaba · 1 year, 1 month ago

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@Pranshu Gaba Great! Sandeep Bhardwaj · 1 year, 1 month ago

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@Sandeep Bhardwaj Thanks ! :) Pranshu Gaba · 1 year, 1 month ago

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I did a few quizzes last night and I enjoy the new layout. The only area for improvement, in my opinion, is that upon completion there is no indicatior of what has been completed already when at the home list of quizzes. Since starting on Brilliant back in April, the site has undergone many great changes and I look forward to seeing how it develops even further. Thanks for all you folks do. Michael Bye · 1 year, 1 month ago

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@Michael Bye Thanks for that suggestion!

We are actively decoupling the quizzes from the list of wikis. We hope to present a list of distinct wikis related to the chapter, and then provide relevant quizzes for you to work on when exploring deeper. We will think about how to indicate quiz progress in a simple way. Calvin Lin Staff · 1 year, 1 month ago

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This sounds certainly exciting! I will contribute to the logic section! Noel Lo · 1 year, 1 month ago

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@Noel Lo Woohoo! Calvin Lin Staff · 1 year, 1 month ago

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Thank you, it will be a great help Bhakti Dongerkery · 1 year, 1 month ago

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I can surely contribute to the Algebra and Geometry section :) Swapnil Das · 1 year, 1 month ago

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@Swapnil Das Looking forward to that! Calvin Lin Staff · 1 year, 1 month ago

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Request@Calvin Lin : I have posted various problems but they are not rated . Please help me out . Some problems of mine are waiting to be rated for more than month Aakash Khandelwal · 1 year, 1 month ago

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@Aakash Khandelwal This comment is irrelevant to the discussion, and I will delete this thread soon. You can leave such comments on my message board instead.


As I've told you, problems are rated by

  1. The problem creator or moderator gives it an initial seed level. We state that it is "Level pending (100 points)".
  2. The community works on the problem.
  3. After enough people have worked on it and we have become more confident that the rating is accurate, we will release the level of the problem.

So, to ensure that your problems get rated, you can
1. Give it an initial seed level.
2. Make the problem good and interesting.

If you realize that a problem doesn't have an initial seed level, IE it says "level pending(10 points)", AND that it is a really interesting problem that the community loves (say > 100 views), you can mention me and I will assign a level accordingly.

If all of your problems say "level pending (100 points)", then it is a likely indication that they need to be improved on, in order to appeal to the community. Problem writing is a skill, which can be developed over time. Calvin Lin Staff · 1 year, 1 month ago

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