What is LA Math Cup? How To prepare for it? TOPKIDS

What is LA Math Cup? How To
prepare for it?
TOPKIDS
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4/20 (5-6 pm @ Arcadia) and 4/24 (6:30-7:30 pm @ Walnut)
“What is the LA Math Cup? How can your child prepare?”
4/27 (5-6 pm @ Arcadia) and 5/1 (6:30-7:30 pm @ Walnut)
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“How to Prepare for John Hopkins University CTY
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(“甚麼是John Hopkins University全國資優天才小孩甄選培訓? 如何參加?”)
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Why Math Training & Competition? (為什麼要參加數學競賽和訓練
為什麼要參加數學競賽和訓練)
為什麼要參加數學競賽和訓練
• Increase your child’s interest in mathematics
(培養您小孩對數學的興趣)
• Encourage your child to value intellectual pursuits
(鼓勵您小孩對知識的追求)
• Wonderful brain power training & developing
(激發您小孩腦力發展和運算能力)
• Help prepare your child for competition
(為您小孩對未來在事業上的競爭能力做準備)
• Great extra-curricular for applying top colleges
(對申請一流大學有絕佳的幫助)
• Great training to achieve perfect-scores in school and SAT tests
(幫助在學校數學考試, CST,和 SAT數學拿滿分)
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About Math Olympiads (“數學奧林匹克
數學奧林匹克”)
數學奧林匹克
Created in 1977 by Dr. George Lenchner, an internationally known math educator, the Math
Olympiads went public in 1979. Last year 150,000 students from 6,000 teams worldwide
participated in the Olympiads. 49 of the 50 states and about 30 other countries were
represented.
數學奧林匹克是於1977年由喬治藍區納博士----國際知名的數學教育學者所創立.去年全世界有
多達6,000個隊伍,150,000個學生參加比賽. 包括全美49州及超過30國家.
Math Olympiads competition is held from November to March. There are 5 tests and totally 25
points. The Division E is designed for Grade 4 – 6. The Division M is designed for Grade 6-8.
Top students in the test will be awarded and recognized in their National newsletter.
數學奧林匹克比賽期間自每年11月至隔年3月,有5個考試總分25點. 小學組為Division E,中學組為
Division M.
Math Olympiads Tournaments are quite new to a lot of people. The Tournament is held only
one day for about 3-5 hours. It is designed to allow students in each region to compete in
tournament style like some other popular math competitions (eg. MathCounts and Math
League).
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So What is the 2013 Los Angeles Math Cup?
The 2013 Los Angeles Math Cup is an official Math Olympiads Tournament in the Los
Angeles region. We receive questions from Math Olympiads organization and host the
tournament before or after the regular Math Olympiads season (Nov. – Mar.)
TOPKIDS CLUB is honored to host and sponsor the only Math Olympiads Tournament in Los
Angeles region – The 2013 LA Math Cup
May 18th (9 am – noon) Saturday
Alverno High School
(200 North Michillinda Avenue Sierra Madre, CA 91024)
Fee: $20 for each student
Enroll Deadline (May 4)
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The Competition Rule
There are three divisions:
Division A (G2-G3)
Division B (G4-G5)
Division C (G6-G8)
There are 3 rounds and an awards ceremony.
Round 1: Each student works alone on 10 timed short-answer problems.
Round 2: Each student works alone on another 10 timed short-answer problems.
Knock-out round: Top scorers in each division will be invited to participate in the
final knock-out round.
Awards:
All participated students will receive the certificate of participation
Top 3 Individual winners will be awarded medals
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Other Math Competitions
Elementary
• Math Olympiads – Division E (Grade 4-6)
• Math Field Day (Grade 4 – 6)
• Math Kangaroo (Grade 1 - 5)
Middle School
• MathCounts (School Team)
• Math Field Day
• Math League
• Math Olympiads – Division M
• AMC8
• Math Kangaroo (Grade 6 - 8)
High School
• AMC10/12
• Math Kangaroo (Grade 9 - 12)
• Math League
• School Math Team
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Road To USA Math Olympiad Team
AIME
AMC10/12
•There are101,110 students participated AMC10
•There are 98251 students participated AMC12
• Top 5% of AMC12 who score 120 and above
• Top 2.5% of AMC10 who scores 120 and above
• There are about 7,000 students
participated in 2013
• Only 230 advanced to USAJMO
and 250 to USAMO
Mathematical Olympiad
Summer Camp (MOSP)
•Further Training and select 6-10
form the US team to compete the
IMO
USAJMO
Only 20-30 advanced to MOSP
USAMO
International Math
Olympiad (IMO)
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Only 10 advanced to MOSP
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Typical Questions – Division E
Tracy’s Trophies charges by the letter for engraving. There is one fee for each
vowel and a different fee for each consonant. CAROL costs $31 to engrave.
GABRIEL costs $43 to engrave. How many dollars does BRIDGET cost to
engrave?
例題: (小學組)
Tracy獎牌店收取獎牌刻字費用以字母計算.母音一種價錢,子音另一種價錢.
刻CAROL要$31
刻GABRIEL要$43
刻BRIDGET需要花多少錢?
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Typical Questions – Division M
A bookseller has 15 different novels: 4 are in German, 5 are in Spanish, and 6 are
in French. Emma buys two novels. They are written in two different languages.
In how many ways can this be done? Ignore the order in which she buys them.
例題: (中學組)
書店裡共有15本小說,德文4本,西班牙文5本,法文6本.
Emma買了2本不同語文的小說,
問有多少不同的買法?
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Most Students Have Difficulty To Solve Word Problems
The most difficult homework assignment for most math students is working
story/word problems. Solving word problems requires excellent reading
comprehension and translating skills.
對一般學生來講,最難的問題就是數學應用題.
解題需要英文閱讀技巧和特殊解題能力
Students often have difficulty substituting English terms for algebraic symbols and
equations. But once an equation is written, it is usually easily solved.
學生通常在英文文意轉換為數學代數方程式上都有些困難,但一旦有了計算方式,就
很好解題
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Some Skills Needed To Solve Word Problems
Skill 1 - Read the problem two or three times.
Read the problem quickly the first time as a scanning procedure. As you are
reading the problem the second time, answer these three questions:
1.
2.
What is the problem asking me? (Usually at the end of the problem)
What is the problem telling me that is useful? (Cross out unneeded
information).
Read the problem a third time to check that you fully understand its
meaning.
技巧一
多讀幾次問題
當你再度讀題時,問以下幾個問題:
1. 到底問題問什麼?
2. 什麼是解題需要用到的資訊?
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Some Skills Needed To Solve Word Problems
Skill 2 - Draw a simple picture of the problem to make it more
real to you 用圖形來簡化問題
Dana Middle School has 900 students.
75 enroll both music program and sports teams.
100 enroll both sports teams and reading club.
128 enroll both reading club and music program.
56 enroll only music
200 enroll only reading club
167 enroll only sports
67 enroll all three activities
How many students do not enroll anything?
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Some Skills Needed To Solve Word Problems
Skill 3 – Make an equation and fill the blanks
用方程式來
用方程式來解題
y
X
xy
900 = N + (X+Y+Z) – (xy+yz+xz) + xyz
xyz
yz
xz
N (enroll nothing)
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Z
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Some Skills Needed To Solve Word Problems
Skill 4 - Translating English words into algebraic expressions
英文文意轉換為數學代數方程式
15 times of John’s
current age 5 years ago
is equal to 5 times of
Tom’s current age after
10 year.
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15J –5 = 5T + 10
or
15 (J –5) = 5(T + 10)
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Some Skills Needed To Solve Word Problems
Skill 4 - Translating English words into algebraic expressions
英文文意轉換為數學代數方程式
15 times of John’s
current age 5 years ago
is equal to 5 times of
Tom’s current age after
10 year.
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15J –5 = 5T + 10
or
15 (J –5) = 5(T + 10)
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Some Skills Needed To Solve Word Problems
Skill 5 - Immediately retranslate the equation back into English
and verify whether it is correct
把轉換後的方程式再轉成簡單的英文看是不是符合題目所問的
5(T + 10) = 15 (J –5)
題目:
題目 15 times of John’s
current age 5 years ago
is equal to 5 times of
Tom’s current age after
10 year.
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The product of 15 and
(John’s current age
subtract 5 ) is equal to
the product of 5 and
(Tom’s current age
plus 10).
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Some Skills Needed To Solve Word Problems
Skill 6 - Some formulas dealing with specific word problems
may need to be rewritten
有時公式需依題目的需要再做適度轉換
Review the equation to see fit is similar to equations from your homework and if it
makes sense. Some formulas dealing with specific word problems may need to be
rewritten. Distance problems, for example, may need to be written solving for each of
the other variables in the formula.
Distance = Rate x Time; therefore, Time = Distance/Rate, and Rate = Distance/Time.
Usually, a distance problem will identify the specific variable to be solved.
距離 = 速度 X 時間
時間 = 距離 / 速度
速度 = 距離 / 時間
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Some Skills Needed To Solve Word Problems
Skill 9 - Look at your answer to see if it makes common sense.
解題後自己看看是否make
sense
解題後自己看看是否
Example: If tax was added to an item, it should cost more or if a discount was applied
to an item it should cost less. Is there more than one answer? Does your answer match
the original question? Does your answer, have; the correct units?
例題: 加稅後的價錢應該比稅前多才對,才make sense!
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Our Math Classes
Center of
Speed Math
Grade 1 – 3
Speed Mental Math &
Math Word Problems
TOPKIDS CLUB
Math & Science Team
Jr. Team (Grade 1-3)
Math & Science Team
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Summer Camp
Grade 1 – 3
Speed Mental Math &
Puzzle Solving Camp
(Grade 4-8)
Grade 4 – 8
Language Arts Team
Speed Algebra &
Problem Solving
(Grade 4-8)
Grade 4 – 8
Math Olympiads,
Math Counts, AMC8 Camp
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(Grade 9-12)
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