



"Roar the child"! What is the roar?
什么?!不要向孩子大喊大叫我们一直反对的东西吗?啊?!难道你不想“温柔而坚定”吗?你怎么能“咆哮”?
是的,我们都同意我们应该尊重我们的孩子而不是对他们大喊大叫。如今,许多家长也在尝试实践“零吼”的培育方法。
首先,我们必须明确一个基本观点:不大喊大叫而不是大喊大叫的努力是非常有意义的,值得尝试。
然而,在现实生活中,我相信每个人都有经验:咆哮的孩子,有时候是不可避免的。
例如,以下是先生 李岩说:
我女儿的两个同学,一对兄弟姐妹出生于龙凤,父母因为有事,请帮我照看孩子。
首先,我拿起了我的兄弟姐妹,然后我带他们去了一所音乐学校接我的女儿,那里正在那里学习钢琴。
音乐学校旁边有一个游乐园,但它是私人的。它不对外界开放。栅栏门上的标牌上写着“No Entry”。
两兄弟姐妹第一次来到这里。他们非常好奇。他们想进去看看。我说,“你不能进去。在其他人的家中不允许这样做。你看到这里写的是什么。”
但是这两个兄弟姐妹说:“没有人再看一遍。进去看看你害怕什么。”
当然,我坚持说,“你不能进去,没有人能看到你而且你不能进去。” 但他们仍拒绝倾听。这个名叫媛媛的男孩刚刚开始爬上篱笆门,准备翻身。
这时,我不得不严厉地喊道:“媛媛,下来!”
就这样,男孩灰了下来,两个人不再纠缠于此事。
说实话,我不仅没有想到一个更好的方法来阻止这个男孩,但即使是现在,我也没有想到一个更好的方法来阻止这个男孩。
这种方法是否与我们之前所说的相反,即“温和的态度和坚定的行动”?
不一定,这取决于咆哮后发生的事情。
李燕老师说:“如果我对他们大喊大叫,他们会停止做他们不该做的事,但我仍然无休止地数着他们:你为什么不知道什么?你已经九岁了。你为什么不列表?你必须让我喊!“ 如果是这样,那将违背我们之前讨论过的原则。“
因此,如果“咆哮”是当时最有效的方式,那么一声咆哮及其效果就足够了,所以不要继续说话。
也就是说, -
咆哮是针对行为,而不是针对人。
Variation characteristics of potentiometer resistance
Variation characteristics of potentiometer resistance
The characteristic of resistance change refers to the relationship between the resistance of the potentiometer and the length of the movable contact or the angle of rotation of the rotating shaft, that is, the characteristic of the resistance output function. There are three commonly used resistance change characteristics.
Straight line type (X type): With the change of the moving corner position, its resistance value changes close to a straight line. Exponential formula (Z type): The change of the potentiometer resistance has an exponential relationship with the change of the dynamic angle position.
The resistance change of the linear potentiometer has a linear relationship with the rotation angle. When the conductive material on the resistor is evenly distributed, the resistance per unit length is approximately equal. It is suitable for occasions requiring uniform adjustment (such as voltage divider).
In the exponential potentiometer, due to the uneven distribution of conductive substances on the resistor body, when the potentiometer starts to rotate, the resistance value changes slowly, and when the rotation angle increases, the resistance value changes steeply. The permissible power per unit area of ??the exponential potentiometer is unequal, and the end with a small resistance change is allowed to withstand a larger power. It is commonly used in volume adjustment circuits because the human ear is most sensitive to the loudness of the sound. When the volume reaches a certain level, the hearing of the human ear gradually becomes dull. Therefore, the volume adjustment generally uses an exponential potentiometer, so that the sound changes seem stable and comfortable.
In the logarithmic potentiometer, due to the uneven distribution of the conductive material on the resistor, the resistance changes rapidly when the potentiometer starts to rotate. When the rotation angle increases, the resistance changes when it approaches the end with the larger resistance Relatively slow. Logarithmic potentiometers are suitable for electronic circuits that are contrary to the requirements of exponential potentiometers, such as contrast control circuits and tone control circuits for televisions.
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