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Welcome to the Junior Mathematics Competition!
This year the competition will be held in two parts - the first being a multiple-choice and short answer exam sat entirely online , while the second part will be a paper exam limited to the top 15 percent of participants in the first part.
The first part of the competition will be sat from Monday April 8 to Friday April 12 , while the second part will be held on Wednesday May 15 .
2024 is the 39th year of this highly successful Competition.
This mathematics competition is for students in years 9 to 11 (forms 3 to 5), although younger students may also take part. Every student throughout New Zealand sits the competition on exactly the same days, usually two Wednesdays in April in May (one for each part).
The competition lasts for 50 minutes per part (so one hour, 40 minutes in total). The emphasis is on problem solving, so expect surprises!
Mathematical skills are important, but so is careful reading. Students who read the questions carefully and work out exactly what is being asked generally do better than those who jump in and write down the first thing that springs to mind.
Although many of the same questions are asked for each year level, students only compete against students at the same level as themselves. (However students in years 7 or 8 are regarded as being in year 9 for the purposes of the competition.)
Full details of the competition may be found here , with a note on who can enter here .
Note: This competition should not be confused with Problem Challenge , which is run by a separate unit within the Department of Mathematics and Statistics at the University of Otago. For Problem Challenge enquires please contact the Problem Challenge organisers directly.
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- October 26, 2023
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Welcome to the Junior Mathematics Competition!
This year the competition will be held in two parts – the first being a multiple-choice and short answer exam sat entirely online , while the second part will be a paper exam limited to the top 15 percent of participants in the first part.
The first part of the competition will be sat from Monday April 4 to Friday April 8 inclusive , while the second part will be held on Wednesday May 11 .
2022 is the 37th year of this highly successful Competition.
This mathematics competition is for students in years 9 to 11 (forms 3 to 5), although younger students may also take part. Every student throughout New Zealand sits the competition on exactly the same days, usually two Wednesdays in April in May (one for each part).
The competition lasts for 50 minutes per part (so one hour, 40 minutes in total). The emphasis is on problem solving, so expect surprises!
Mathematical skills are important, but so is careful reading. Students who read the questions carefully and work out exactly what is being asked generally do better than those who jump in and write down the first thing that springs to mind.
Although many of the same questions are asked for each year level, students only compete against students at the same level as themselves. (However students in years 7 or 8 are regarded as being in year 9 for the purposes of the competition.)
Hi there, this is another post.
This is a test post, without a title?
otago problem solving 2023 answers
Otago_problem_solving_Solutions_1_2023 - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
Otago_problem_solving_Solutions_2_2023 (1) - Read online for free.
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Otago Problem Solving
By Shona Mckenzie | Posted: Wednesday September 6, 2023
Five times a year, Year 7 & 8 students from around New Zealand compete in the Otago Problem Solving Competition.
60 students from Casebrook currently participate in Otago Problem Solving. This extra curricular competition requires students to independently solve a range of mathematics problems.
During each session, students are given five different problems that need to be solved within the 30 minute time frame. The questions vary, however, generally they include brain teasers. This year the competition began in April and will continue to take place each month.
The program has been running for 30 years with over one million students around New Zealand having already participated. It is organised by John Curran and John Shanks, retired members of the Department of Mathematics and Statistics at the University of Otago, with help from Leanne Kirk, also a member of the Mathematics Department.
The students with the highest scores at the end are invited to participate in the final challenge. We wish our mathematicians the best of luck.
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Otago Problem Solving
The competition started around the early 1990’s in South Island schools, but after about two years, the competition became available to schools all over New Zealand with students in years 7 and 8. Some younger children can sometimes participate too. In most years about 650 schools enter problem challenges, involving over 35,000 children.
Each year students answer 5 questions in 30 minutes, over 5 sets of work, and at the end of each competition everyone receives a certificate. 10% get excellence, 30% get a merit, while the others receive a participation award.
We think that everyone who participated had a great time and enjoyed pushing themselves in that category. A quote from Harry, “I really loved the challenge and even though I didn’t do brilliantly I have thoroughly enjoyed it and improved on my maths.”
Here are some questions from the quiz
The school soccer team has played 15 games with a success rate of 80%. In order to raise their success rate to 90% in the shortest possible time, how many consecutive games must they win?
All of Toby’s marbles are either blue, red, green, or yellow. One third of his marbles are blue, one quarter of them are red, and seven of them are green.
What is the smallest number of yellow marbles that Toby could have?
Written by Aydin Khajehzadeh and Harry Baddington
Department of Mathematics and Statistics
Te tari pāngarau me te tatauranga, study mathematics and statistics at otago, understand the fundamentals of mathematics and statistics and solve real world problems.
Mathematics and statistics underpin virtually all aspects of modern life, with applications across the fields of sciences, technology and business. Mathematics and statistics teach analytical reasoning and logical thinking that make it possible to understand and solve all manner of quantitative problems across a wide range of career sectors.
Study Mathematics
Study statistics, explore what makes science at otago so special.
It's not just our people – the experts in their fields and passionate students – but also the places we teach and learn: Otago Harbour, Fiordland, Stewart Island, Antarctica and the Pacific that mean our students leave here with highly sought-after skills and experiences.
Our community engagement
The Department also maintains important links with schools through two competitions: Problem Challenge and the Junior Mathematics Competition , run by Departmental staff, and by providing a comprehensive series of Statistics video presentations aimed at supporting the New Zealand Statistics curriculum.
Find out how your school can take part in our competitions and access our video series:
- Junior Mathematics Competition
- Problem Challenge
- Statistics video presentations
New Orleans teens solve 2,000-year-old math problem
W hen she started a math contest with a bonus question challenging students to create a new proof for the Pythagorean theorem using trigonometry, teacher Michelle Blouin Williams didn’t expect anyone to complete the task.
“I was just looking for some ingenuity,” she said, per CBS News .
Calcea Johnson and Ne’Kiya Jackson, however, blew Williams’ expectations out of the water by figuring it out in 2023. The teens were seniors at St. Mary’s Academy in New Orleans, a prestigious Catholic school for girls which has maintained a 100% acceptance rate to colleges and 100% graduation rate for 17 years, CBS News reported.
They appeared in an episode of CBS News’ “60 Minutes ” on Sunday to talk about their achievement.
How did the teens find the answer?
While they were motivated initially by the math competition’s $500 prize, an internal drive to finish what they started manifested when they reached the tricky bonus question. For two months, the high school seniors worked tirelessly to finish their proof.
CeCe Johnson, Calcea’s mother, told “60 Minutes,” “It was pages and pages and pages of, like, over 20 or 30 pages for this one problem.”
Her father, Cal Johnson, added, “Yeah, the garbage can was full of papers, which she would, you know, work out the problems and — if that didn’t work she would ball it up, throw it in the trash.”
When they finished, teachers at St. Mary’s recognized the importance of their work and submitted their proof to the American Mathematical Society for recognition at a conference in March 2023, where the students presented their work.
What is the Pythagorean theorem and what’s a proof?
In essence, the mathematical theorem states that knowing the lengths of two sides of a right triangle enables you to figure out the length of the third using this formula: a² + b² = c².
It’s associated with Greek mathematician Pythagoras, but evidence suggests it was known earlier, in Babylon and Iron Age India, per Britannica . Its practical uses include construction and architecture, two-dimensional navigation, and surveying.
A mathematical proof is exactly what it sounds like: reasoning that proves a mathematical theorem is true. American mathematician Daniel Kane explains proofs as being like essays, but using math.
Why is Calcea Johnson and Ne’Kiya Jackson’s work significant?
According to the “ 60 Minutes ” episode, “there had been more than 300 documented proofs of the Pythagorean Theorem using algebra and geometry, but for 2,000 years a proof using trigonometry was thought to be impossible.”
In 1927, mathematician Elisha Loomis said as much in his book, “ The Pythagorean Proposition .” Loomis argued that there could be no trigonometric proof of the theorem because it would be circular.
Stuart Anderson, a professor emeritus of mathematics at Texas A&M University–Commerce, told Scientific American , “A lot of the basic trig ‘identities’ are nothing more than Pythagoras’ theorem.”
So, because trigonometric functions are based upon the Pythagorean theorem, using them reflexively to prove the theorem would be akin to going in circles and a fundamental mathematical error, Loomis argued.
According to Scientific American , the teens refuted this in their presentation in 2023 and said that “a trigonometric identity called the law of sines didn’t depend on the Pythagorean theorem and that they could use it to prove the theorem.”
Calcea and Ne’Kiya have joined an extremely small group who’ve accomplished the same feat, including mathematician Jason Zimba, who successfully created a new proof in 2009. The two submitted their proof for final peer review this spring and continue to work on creating more proofs.
How did the world respond to their accomplishment?
The teens were given the keys to the city of New Orleans and a commendation from the governor of Louisiana, among other public recognitions.
While their achievement “blew up,” as Ne’Kiya described it, the two students remain humble, and laughed at being called geniuses.
When news of their accomplishment broke, some people seemed to be shocked and dismissed the news as fake, St. Mary’s president Pamela Rogers said in the interview .
“They were saying, ‘Oh, they could not have done it. African Americans don’t have the brains to do it.’ ... People — have a vision of who can be successful. And — to some people, it is not always an African American female. And to us, it’s always an African American female.”
When interviewer Bill Whitaker asked why they thought there’d been such a response, Ne’Kiya said, “Probably because we’re African American, one. And we’re also women. So I think — oh, and our age. Of course our ages probably played a big part.”
“I’d like to actually be celebrated for what it is. Like, it’s a great mathematical achievement,” she continued.
IMAGES
VIDEO
COMMENTS
Welcome to Problem Challenge! Problem Challenge is a mathematics problem solving competition aimed primarily at children in years 7 and 8, and of interest to able children from Year 6. It has been organised by John Curran and John Shanks, retired members of the Department of Mathematics and Statistics at the University of Otago, with extensive ...
Otago Problem Solving Solutions 1 2023 | PDF. Otago_problem_solving_Solutions_1_2023 - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
2023: Monday 27 Nov-Sunday 24 Dec 2023. 2024: Monday 25 Nov-Sunday 22 Dec 2024. ... If your answers involved problem solving, were answered on multi-choice answer sheets for computer marking or a Department requires a particular examination paper to be embargoed from publication and not released into the public domain then you will not be ...
Previous Questions. You can download PDF files of the questions and solutions from previous competitions here:
Otago_problem_solving_Solutions_2_2023 (1) - Read online for free.
Welcome to the Junior Mathematics Competition! This year the competition will be held in two parts - the first being a multiple-choice and short answer exam sat entirely online, while the second part will be a paper exam limited to the top 15 percent of participants in the first part.. The first part of the competition will be sat from Monday April 8 to Friday April 12, while the second part ...
October 26, 2023. Throughout the year we have had a group of 113 Year 7 and 8 students participating in The University of Otago Problem Challenge. With 5 rounds of 5 difficult questions, the students have been using and developing their problem-solving skills competing against students from all over New Zealand.
Welcome to the Junior Mathematics Competition! This year the competition will be held in two parts - the first being a multiple-choice and short answer exam sat entirely online, while the second part will be a paper exam limited to the top 15 percent of participants in the first part. The first part of the competition will be sat from Monday ...
Problem Challenge is an annual competition run by the University of Otago Department of Maths and Statistics, for students in Years 7 & 8. ... Maisie and Nate — University of Otago Problem Challenge - Merit by ... Kim Allan — Oct 11, 2023. We had a few students in Room 5 challenging themselves to this very tricky competition, but we had two ...
Registration. Dates for 2023. Set 1 Set 2 Set 3 Set 4 Set 5 Final Challenge 27 April 25 May 22 June 27 July 24 August Thursday 19 October Dates for 2024
The Otago Problem Challenge is a mathematics problem competition aimed primarily at children in years 7 and 8. It is organised by John Curran and John Shanks, retired members of the Department of Mathematics and Statistics at the University of Otago. Children participating in the competition attempt to answer five questions in 30 minutes on ...
The University is committed to providing an environment conducive to scholarship through excellence in teaching, research and service. It aims to provide a stimulating environment for both students and staff. Nevertheless, during the course of your study, problems may arise. These may include a ...
By Shona Mckenzie | Posted: Wednesday September 6, 2023. Five times a year, Year 7 & 8 students from around New Zealand compete in the Otago Problem Solving Competition. ... The questions vary, however, generally they include brain teasers. This year the competition began in April and will continue to take place each month.
In most years about 650 schools enter problem challenges, involving over 35,000 children. Each year students answer 5 questions in 30 minutes, over 5 sets of work, and at the end of each competition everyone receives a certificate. 10% get excellence, 30% get a merit, while the others receive a participation award.
Mathematics and statistics underpin virtually all aspects of modern life, with applications across the fields of sciences, technology and business. Mathematics and statistics teach analytical reasoning and logical thinking that make it possible to understand and solve all manner of quantitative problems across a wide range of career sectors.
Demonstrating your ability to tackle challenges effectively can set you apart from other applicants. Here are five tips to help you showcase your problem-solving skills during an interview: 1. Use the STAR Method. Structure your responses using the Situation, Task, Action, and Result (STAR) method.
2023 AMC 8. 2023 AMC 8 problems and solutions. The test was held between January 17, 2023 and January 23, 2023. The first link contains the full set of test problems. The rest contain each individual problem and its solution. 2023 AMC 8 Problems. 2023 AMC 8 Answer Key. Problem 1.
For many problems, the composers do not have the nationality of the proposing country. For instance, problem 2009/4 was proposed by Belgium, but only two of the three problem authors were Belgian, whereas the third is from South-Korea. Similarly, problem 2020/3 was proposed by Hungary with one Hungarian and one non-Hungarian problem author.
CeCe Johnson, Calcea's mother, told "60 Minutes," "It was pages and pages and pages of, like, over 20 or 30 pages for this one problem."