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o meu artigo, fala basicamente sobre tudo que já tem no nosso pais, pelo menos já visto por mim.
mas ele recomenda que os professores tenham um curso, e sejam questionados pelas suas reflexões, e pelos seus métodos, e que aprimorem eles, e que eles façam que os alunos tentem os exercícios antes, de uma maneira mais difícil, apenas com uma demonstração, depois o professor vem com uma aula reflexiva, e bastante efetiva.

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Examining Mathematics Teachers' Disciplinary Thinking | Schultz | The Mathematics Educator

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A wnba esta melhor que a nba nos lances livres
a batalha de lances entre homens e mulheres, é antiga, porem, as mulheres, estão se superando, cada um dos sexos, com suas dificuldades, mas, o basquete feminino, ta com uma porcentagem de acerto de lance livre maior que a do basquete masculino

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As basketball season comes into full swing, consider another competition - the one between the blue and pink teams.

The battle of the sexes is as old as time. It is the subject of conversation in any endeavor in which both men and women participate. And historically, when it comes to sports, the bragging rights often go to the men.

But, in a longitudinal study that I and engineer Chau Tran published in December, we examined men and women free-throw percentages in NCAA basketball over a 30-year period. We found that women shoot at 3 percent higher consistency than men. Men and women are very close, but the women edge out the men.

History of the free throw

Even though free throw shooting percentages vary from player to player, the average free throw shooting percentage in the NCAA has hovered at around 68 percent for both men and women for more than 30 years.

Brad Rempel-USA TODAY Sports

The top NBA player, Steve Nash, shot at about 90 percent, and the top WNBA player, Delle Donne, shoots at about 93 percent. But these superstars follow best practices, which is the great exception, and their shooting percentages don't significantly affect the averages. The average free throw shooting percentages in NCAA don't typically vary by more than 1 percent from year to year.

So, if the shooting percentages for men and women have been so close, then what about the physical differences? On the one hand, the man's basketball is larger than the woman's, making the free throw more difficult for men. On the other hand, the woman's ball is more bouncy and women are on average shorter than men, making the free throw more difficult for women.

Estimating free throw consistency

With the average free throw percentages so close for men and women, the better sex would be determined by the one who is the most consistent, taking into account the physical differences between basketball size and the height at which the ball is released.

No player releases the ball exactly the same way each time. Differences occur in the release speed, release angle, release height and so on. Our previous work shows that consistency in release speed and release height are the two most important factors behind free throw consistency.

So the question was this: Which gender, on average, shoots with the most consistent release speed? We measured this by looking at the standard deviation in the release speed of the ball, taking into account release height, too. The standard deviation of the release speed is just the mathematical way of expressing consistency. The lower the standard deviation, the more consistent the shooter's release speed.

To find the standard deviation in the ball's release speed, we began by resurrecting a technique we developed in 2003 for estimating basketball shot consistency. The technique estimates the consistency from many thousand simulated trajectories, each of which matches real trajectories almost perfectly, including how the ball bounces off the rim and the backboard. We varied the initial conditions of the free throws to find what standard deviations in release speed lead to the NCAA average shooting percentages.

Because the differences in shooting percentages between men and women are so small, the code would now have to consider many million trajectories. It would take more time to run, so we replaced our old numerical method with a much faster method, customized for the free throw.

The findings

First, we found the standard deviations in free throw launch speed that produced the NCAA average shooting percentages. They depended on the different release heights of the ball from the floor, so we looked at them assuming different release heights.

When we assumed that the ball was released from a height of 5.5 feet (1.67 meters) from the floor, the men appeared to be more consistent than the women. However, it isn't fair to consider the data this way, because the average height of a male is significantly different than of a female and therefore so too the average release heights of the basketball. What we really needed to do was to compare performance across respective average release heights of the basketball.

When we looked at the data this way, we saw that the standard deviations for the women were about 3 percent smaller than for the men, taking into account physical differences in basketball size and average player's height. In other words, on average, women need to be 3 percent more consistent than men to achieve their average shooting percentages reported by the NCAA.

This season, as you follow the great competitions between the basketball teams, also remember the age-old competition between genders - and that in the free throw one point goes to the pink team.

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Women are better than men at the free throw line

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As basketball season comes into full swing, consider another competition - the one between the blue and pink teams. The battle of the sexes is as old as time. It is the subject of conversation in any endeavor in which both men and women participate.

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Book

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Math

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This site provides (completely free) writing prompts and exercises to help you get started with creative writing and break through writing blocks - and some fun anagram vocabulary games.

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This site provides (completely free) writing prompts and exercises to help you get started with creative writing and break through writing blocks - and some fun anagram vocabulary games. Generate random story ideas, plots, subjects, scenarios, characters, first lines for stories and more. Did I mention it's all free?

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Matematicas

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Boosting Your English Listening Skills

Randall's ESL Cyber Listening Lab has been providing online English listening comprehension activities for ESL and EFL learners since 1998. Visit Randall's other Web sites at DailyESL.com, EZslang.com, and Trainyouraccent.com for more language practice.

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Randall's ESL Cyber Listening Lab - English Listening

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Randall's ESL Cyber Listening Lab helps ESL and EFL learners improve their English listening comprehension skills through conversations.

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Faculdade SESI

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Challenge

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Some math skills are easier to pick up than others. Math Games helps students get the extra practice they need with fun activities focusing on specific skills and topics.

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math games practice addition algebra comparison counting decimals division estimation fractions geometry graphing measurement mixedequations money multiplication numberproperties numberpatterns positions ratios stats subtraction time free math games practice common core standards

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Some math skills are easier to pick up than others. Math Games helps students get the extra practice they need with fun activities focusing on specific skills and topics. Click on one of the skills above to see what students are supposed to be able to do at each grade level.

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This is Storyofmathematics.com (SOM), the go-to website for all things math-related! With the click of a button, you'll be able to access a wide selection of

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Barbie

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JOGO DE APRENDER MATEMÁTICA E INGLÊS no Jogos da Barbie! CLIQUE agora e jogue totalmente grátis o jogo de aprender matemática e inglês um jogo especial!