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kiron123
kiron123
29.07.2022 23:17 •  Алгебра

Тип и структура урока математики в начальной школе не определяются:

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Ответ:
Arttfggg
Arttfggg
30.03.2020 06:48

Объяснение:

1.

a) √(x+1)=6      ОДЗ: х+1≥0      х≥-1    x×[-1;+∞).

(√(x+1))²=6²

x+1=36

x=35.

б) √(2-x²)=1      ОДЗ: 2-x²≥0    x²≤2      x∈[-√2;√2]

(√(2-x²))²=1²

2-x²=1

x²=1

x₁=-1      x₂=1.

2.

√(x+3)+(x+3)=6     ОДЗ:  х+3≥0    х≥-3.

(x+3)+√(x+3)-6=0

Пусть √(x+3)=t≥0      ⇒

t²+t-6=0     D=25    √D=5

t₁=√(x+3)=2

(√(x+3))²=2²

x+3=4  

x₁=1.

t₂=√(x+3)=-3 ∉

ответ: x=1.

3.

1-й вариант:

√(x²+2)+x²=0

√(x²+2)+x²+2-2=0

x²+2+√(x²+2)-2=0

Пусть √(x²+2)=t>0

t²+t-2=0     D=9       √D=3

t=√(x²+2)=1

(√x²+2)²=1²

x²+2=1

x²=-1  ∉

t=√(x²+2)=-2 ∉.

2-й вариант:

{√(x²+2)>0

{x²≥0      ⇒

√(x²+2)+x²>0

√(x²+2)+x²≠0

ответ: уравнение решения не имеет .

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Ответ:
Ильдар21111
Ильдар21111
24.05.2022 12:24

How to develop your child's self-awareness

Self-awareness is an important skill that a child needs to develop. Self-awareness will help a child develop his or her strengths and overcome weaknesses. If you want to explain to a child what self-awareness is and develop it according to his or her age, this article is for you.

What is self-awareness

Self-awareness is a life skill that helps a child learn to understand their feelings and thoughts. This enhances the child's potential. Also, self-awareness helps the child to understand how he and his behavior are perceived by others. The development of self-awareness and the ability to properly apply it is an important tool for the overall development of the child.

How to teach a child self-awareness

Self-awareness helps the child to use emotional intelligence and mental abilities. It also helps the child develop social skills and establish relationships with others in older age. Consider some simple and effective ways to develop a child's self-awareness.

1. Give a good example

To develop a child's self-awareness, you must first develop it in yourself.

Show your own example of how to handle everyday situations calmly and positively;

when facing difficult or unpleasant situations, show the child how to remain calm and positive;

if in any situation you are angry, take a break. Show the child that in order to better cope with the problem, sometimes you need to switch your attention to something else.

2. Accept and acknowledge your child's emotions

Accept the emotions of the child and never make fun of them - neither alone nor, especially, in the presence of other people.

if the child openly demonstrates his emotions, it will help him to keep them under control and express his thoughts better;

When a child learns to cope with their emotions, they will learn to accept their behavior and understand how to behave better.

3. Empathize with your child

When you empathize with your child, it gives them a sense of security and confidence.

empathy with the child shows him that his emotions are important and that he has nothing to be ashamed of or hide;

the child may be feeling unwell or something is not working out for him. Your sympathy will show him that you do not always have to be perfect and that making mistakes is normal.

4. Encourage free communication

The key to a child's self-awareness and overall development is honest and open communication.

Encourage your child to communicate with you freely;

allow the child to express their thoughts clearly without worrying about what you will think;

Appreciate what your child is sharing with you. Show him you are happy about it;

even if you do not agree with what the child says, do not ridicule his or her opinion. Instead, try to gently guide it in the correct direction.

5. Be attentive to your child and teach him or her to effectively solve problems

Make sure you listen carefully to your child.

When you pay attention to your baby, he or she feels loved and needed. This will affect his self-esteem well;

help your child understand how it is necessary and how not to behave in certain situations. If he loses control, becomes angry or cries, accept his emotions as a natural reaction. But next time, help him control his emotions;

When your child learns to cope with emotions, show how much better the new behavior model is. Tell your child that you appreciate his courage.

Your child inherits most of your behaviors and social skills. Set a good example for him and help him maximize his potential.

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