高考阅卷执行“关键步骤赋分”规则，对于函数性质类问题，关键步骤（如定义转化、性质应用）占60%分值，因此准确把握内涵对得分至关重要。通过准确把握概念的内涵与外延，考生能够将陌生问题转化为熟悉领域，提高解题效率和高考成绩。

Albert Einstein once said, “If I were given one hour to save the planet, I would spend 59 minutes defining the problem and one minute resolving it.” While that may sound extreme, it does highlight the ...

In 1960, Theodore Levitt wrote “Marketing Myopia” for the Harvard Business Review. He dissected the decline of the railroad industry, placing the blame fully on the industry itself, for not having the ...

I am increasingly troubled by the focus on collaboration tools without a comparable focus on understanding how employees work together successfully — or why they aren’t collaborating at all. Most ...

Guess what the members of your audience are most interested in? That’s right, their problems and how to fix them. This is old news to anyone who has studied the arts of rhetoric, persuasion, and, of ...

The challenges for marketers today can be overwhelming. Beyond the usual issues of competition, spending and market share, at this time we have to navigate a cultural climate with ever-expanding ...