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1
Week 0 Homework and Discussion / Logical reasoning
« Last post by 2020FAMC8M1 on September 29, 2020, 04:08:00 PM »
9/21/2020 Howework: Logical Reasoning
Problem 13,
Five cards are lying on a table as shown. Each card has a letter on one side and a whole number on the other side. Jane said," If a vowel is on one side of any card, then an even number is on the other side." Mary showed Jane was wrong by turning over one card. Which card did Mary turn over? AMC8 1985 #25
2
Week 0 Homework and Discussion / Logical reasoning
« Last post by 2020FAMC8M1 on September 29, 2020, 03:02:47 PM »
9/21/2020 Howework: Logical Reasoning
Problem 7,
The teacher whispers positive integer A to anna, B to Brett, and C to Chris. The students don't know one another's numbers but they do know that  the sum of their numbers is 14. Anna says," I know that Brett and Chris have different numbers." then Brett says, " I already knew thtat all three of our numbers were different". Finally, Chris announces, " Now I know all three of our numbers". What is the product ABC?
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2020 Fall AMC 12 / 2020 Fall AMC 12
« Last post by yongcheng3315 on July 22, 2020, 07:09:08 AM »
2020 Fall  AMC 12 Training Program

(We will mainly use 50 AMC Lectures volumes 3 and 4 as the textbook)

Date: 9/10/2020 – 2/4/2021.

Every Thursday from 7:00 to 8:00 pm, Eastern Time.

Price: $780 (Textbook not included. Class notes, homework, solutions to homework, and call videos will be posted).

Click here to register:

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=X3YEFB4CCUJBC

Registration fee is $700 for returning students. Click here : https://samsmathclub.com/Forum/index.php?board=264.0

 Drafted Schedules (final schedule will be posted in the forum)

 1.   9/10/ 2020   AM-GM Inequality
2.   9/17/ 2020   System of Equations
3.   9/24/  2020   Trigonometry Identities 
4.   10/01/ 2020   Polynomial
5.   10/08/  2020   Logarithms
6.   10/15/ 2020   Substitute Methods
7.   10/22/ 2020   Geometry Parallelograms
8.   10/29/ 2020   Geometry Trapezoids
9.   11/05/ 2020   Analytical Geometry Circles and Lines
10.   11/12/2020   Solving absolute equations
11.   11/19/ 2020   Diophantine Equations
12.   11/26/ 2020   Geometric sequence (YouTube only, Happy Holiday!)
13.   12/03/ 2020   Trigonometry Application
14.   12/10/ 2020   Theorems of Menelaus and Ceva   
15.   12/17/ 2020   Cauchy’s Inequality
 16. 12/24/ 2020   Gaussian function (YouTube only, Happy Holiday!
17. 12/31/ 2020    Binomial Theorem (YouTube only, Happy Holiday!)
18. 01/07/ 2021  Solving radical Equation
19.  01/14/ 2021 Probability
20. 01/21/ 2021 Series and sequences
21. 01/28/ 2021 Recursion Methods
22.  02/01/ 2021  Complex numbers (NOTE: DAY AND TIME CHANGES: Monday, 8:30-9:30 PM because 2/4/2021 is a test day)
 
Good luck on 2/4/2021 (AMC 10/12 A) and 2/10/2021 (AMC 10/12 B) !

Please email to [email protected] if you have any question. Thanks.
4
2020 Fall AMC 10 II / 2020 Fall AMC 10 II
« Last post by yongcheng3315 on July 22, 2020, 07:08:20 AM »
2020 Fall AMC 10 II Program

(We will mainly use 50 AMC Lectures volumes 1 and 2 as the textbook)

Date: September 08, 2020 to February 2, 2021

Every Tuesday from 7:00 to 8:00 pm, Eastern Time.
$780

(Textbook not included. Class notes, homework, solutions to homework, and call videos will be posted)
(Returning students: $700. Click here for payment methods: https://samsmathclub.com/Forum/index.php?board=264.0 )
 
Other students: Click to register:

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=3CA2ULQGLCMHC
 

Drafted Schedules (final schedule will be posted in the forum)
 

This schedule may be slightly modified.

    9/08/2020    1. Algebra Manipulations

    9/15/2020   2. Cubic Identities     

    9/22/2020  3. Radicals

    9/29/2020  4. Absolute Values

    10/06/2020  5. Geometry Similar Triangles

    10/13/2020   6. Vieta Theorem and Applications

    10/20/2020  7. Divisibility

    10/27/2020 8. Geometry Area and Area Method     

    11/03/2020 9.  Geometry Eight Methods To Draw Auxiliary Lines

    11/10/2020 10. Trigonometry Six Functions

    11/17/2020  11. Completing the square                                                                             

    11/24/2020 12. Geometry Eight More Methods To Draw Auxiliary Lines       

    12/01/2020 13. Arithmetic Sequence                                                                     

    12/08/2020 14. How to Use the Discriminant

    12/15/2020 15. Congruent triangles

    12/22/2020 16. Non-negative Numbers (YouTube only. Happy Holiday!)                         

    12/29/2021 17. Squeezing Method (YouTube only. Happy Holiday!)                           

    01/05/2021 18. Analytic Geometry Distance and Lines

    01/12/2021  19. Functional Equations

    01/19/2021 20. System of Equations

    01/26/2021 21. Geometry Angle Bisector And Median

    02/02/2021 22. Square Numbers

         

    Good luck on 2/4/2021 (AMC 10/12 A) and 2/10/2021 (AMC 10/12 B)!

Please email to: [email protected] if you have any questions.
5
2020 Fall AMC 10 Level I/Mathcounts II Training Program

September 09, 2019 to February 3, 2021.

Every Wednesday from 7:00 pm to 8:00 pm Eastern Time.
We will use ZOOM for the class. Please download the following program after your registration. Thanks,

The videos will be posted in the discussion forum so you can review anytime if needed.

Price: $780
(returning students: $700. Please click here for payment methods: https://samsmathclub.com/Forum/index.php?board=264.0 )
 
 Click to register:

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=SLUP9MN6BQFL6

PayPal - The safer, easier way to pay online!
(Textbook not included. Class notes, homework, solutions to homework, and call videos will be posted)


 (Textbooks: AMC 10 Competitions Preparation, 6 Volumes)

This schedule may be slightly modified.

9/09/2020    1. Factors and Divisors                                                                       
 9/16/2020   2. Algebraic Simplification                                                             
9/23/2020  3. Equations Solving Skills                                                                                   
9/30/2020  4. Ratios and Proportions                                                               
10/07/2020  5. Factoring Methods                                                                   
10/14/2020   6. Pythagorean Theorem                                                                 
10/21/2020  7. Triangle Area and Area Method                                                   
10/28/2020  8. Character of Digits                                                                     
11/04/2020  9.  Prime Numbers
11/11/2020 10. Word Problem – Distance and Speed                                       
 11/18/2020  11. Divisibility                                                                                 
11/25/2020 12. Logic Reasoning    (YouTube only. Happy Holiday!)
12/02/2020 13. Similar Triangles                                                                   
12/09/2020 14. Quadratic Equations                                                                 
12/16/2020 15. Circle – Radius, Circumference, and Areas   
12/23/2020 16. Arithmetic and Geometric Sequences  (YouTube only. Happy Holiday!)                         
12/30/2021 17. Coordinate Geometry – Lines and Circles     (YouTube only. Happy Holiday!)                           
01/06/2021 18. Sum and Products of Roots                                           
01/13/2021  19. Counting by Permutation and Combination                           
01/20/2021 20. Solving System of Equations                                       
01/27/2021 21. Counting – Balls and Boxes                                                   
2/03/2021 22. Geometry – Angle Bisector and Median                     

     
Good luck on 2/4/2021 (AMC 10/12 A) and 2/10/2021 (AMC 10/12 B) !
6
__________/________________________________________
2020 Fall AMC8/Mathcounts Training Program

Time: Every Monday from 7:00 pm to 8:00 pm Eastern Time

9/14/2020 to 2/8/2021.

Textbooks: 50 Mathcounts Lectures.

Click the button to register:

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=62Q4LCVYR28SL

This class will be given online by ZOOM and YouTube. Please please  download the following program:  https://zoom.us/support/download  Thanks.
$780 (Textbook not included. Class notes, homework, solutions to homework, and class YouTube videos records will be posted)
(Returning students: $700. Click here for payment methods  https://samsmathclub.com/Forum/index.php?board=264.0 )

 
This schedule may be slightly modified.
1.         9/14/2020 Logic Reasoning
2.         9/21/2020 Solving Equations
3.         9/28/2020 Operations Fractions, Decimals, Percents
4.         10/05/2020 Counting Principles
5.         10/12/2020 Exponents/Radicals
6.         10/19/2020 Ratios and Proportions
7.         10/26/2020 Absolute Values
8.         11/02/2020 Divisibility
9.         11/09/2020 Pythagorean Theorem
10.       11/16/2020 Systems of Equations
11.       11/23/2020 Solving Inequalities
12.       11/30/2020 Combinatorics
13.       12/02/2020 Similar Triangles
14.       12/14/2020 Probability
15.       12/21/2020 Lines And Equations (YouTube only. Happy Holiday!)
16.       12/28/2020  Coordinate systems (YouTube only. Happy Holiday!)
17.       01/04/2021  Polygons (YouTube only. Happy Holiday!)
18.       01/11/2021 Volume
19.       01/18/2021 Congruence
20.       01/25/2021 Remainders
21.       02/01/2021 Circles
22.       02/08/2021 Factors                     


If you have any question, please email to [email protected]
7
Corrections / typos in lectures 19 Evaluating algebraic expressions
« Last post by helenyeung on July 22, 2019, 07:57:52 PM »
Hi,

I have couple of questions for the problems in the Try It Yourself section:
#1. should the answer be 3/4?
#3. should it be a^2 + b^2 + c^2 = 1 instead of a^2 + b^2 + c = 1

Thanks,
Helen
8
WeChat Group 初中数学竞赛(AMC 8, AMC 10, Mathcounts) 交流微信群(2)

Please join the group by scanning the code below.
9
Problem Solving Using Vieta’s Theorem / Registration
« Last post by yongcheng3315 on March 28, 2018, 10:30:53 AM »
Problem Solving Using Vieta’s Theorem

Registration:

http://www.mymathcounts.com/Copied-The-Mass-Points-Method-Online-Class-reopen.php

Time:
Saturday, April 7th, 2018 7:30 pm to 9:00 pm Eastern Time
 

Sample problems:
10
Feedback and Communication / Re: 50 Matcounts lectures pdf files
« Last post by yongcheng3315 on January 25, 2018, 02:22:01 PM »
回复:有人买过那个50 lectures for mathcounts 吗? 感觉怎样?
来源: 欢乐的爸爸 于 2014-02-26 12:42:49 [档案] [旧帖] [给我悄悄话] 本文已被阅读: 300 次 (464 bytes)
字体:调大/重置/调小 | 加入书签 | 打印 | 所有跟帖 | 加跟贴 | 当前最热讨论主题
回答: 有人买过那个50 lectures for mathcounts 吗? 感觉怎样? 由 tgifriday 于 2014-02-26 11:17:12

我家儿子的数学竞赛训练是从MC50讲开始的,之前只做Kumon。第一次接触MC50讲时有种惊为天书的感觉,原来竞赛训练还可以这样系统和深入,怪不得自己当年水平不高,没有这样的条件嘛。我们家用了两年的时间把MC50讲和AMC50讲都很仔细的攻下来了,受益非浅。现在回头看,觉得好的竞赛书其实有很多,不见得非选哪本书,重要的是学懂学透。我们在攻MC50讲时,着重的是学习作者的思想和技巧,至于发现书中的一些错误,倒觉得是自己的achievements,给永成发个mail 更正一下就是了,从没有什么反感的感觉 。

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