Презентация на тему Sign of equality of triangles. lesson 2

Signs of equality of triangles. The goals lessons: Develop skills to apply the features of equality of triangles to solve problems, Lesson Plan:1. Organization of the beginning of the lesson (2-3 min.). 2. Explanation of the new The first sign of equality of triangles: triangles are equal if they have two equal sides The second sign of equality of triangles: triangles are equal if they are equal to two The third sign of equality of triangles: triangles are equal if they are equal to the 4. Fizkultminutka 4.1 Inhale breath, stretched.4.2 Hands - up, worked her fingers - to make different Test your attentiveness.Pick triangles equal data. Place them in the same order. Test your attentiveness.Pick triangles equal data. Place them in the same order. 1. Of the five matches be 2 equilateral triangles. 2. Of the six matches to make Page: 92-93 Exercise №5,7,14 AN UNUSUAL TRIANGLE Triangle divided into 4 parts, and then make a triangle are equal to Good bye

Презентацию Sign of equality of triangles. lesson 2, из раздела: Математика,  в формате PowerPoint (pptx) можно скачать внизу страницы, поделившись ссылкой в социальных сетях! Презентации взяты из открытого доступа или загружены их авторами, администрация сайта не отвечает за достоверность информации в них. Все права принадлежат авторам материалов: Политика защиты авторских прав

Слайды и текст этой презентации

Слайд 1



Signs of equality of triangles.


Слайд 2

triangles to solve problems, recognize the equal triangles to prove their equality, to conclude equality

The goals lessons:

Develop skills to apply the features of equality of triangles to solve problems, recognize the equal triangles to prove their equality, to conclude equality of some of their elements;
Creative development abilities of pupils, cognitive activity, interest in the subject.


Слайд 3

Explanation of the new material (10 min.).3. Fizkultminutka 4. Test your attentiveness.(15 min.).5. Playing with

Lesson Plan:

1. Organization of the beginning of the lesson (2-3 min.). 2. Explanation of the new material (10 min.).
3. Fizkultminutka 4. Test your attentiveness.(15 min.).
5. Playing with matches.(10min) 6. Setting the home (3-4 min.).


Слайд 4

have two equal sides and an angle there between.

The first sign of equality of triangles: triangles are equal if they have two equal sides and an angle there between.



Слайд 5

are equal to two angles and the side between them.

The second sign of equality of triangles: triangles are equal if they are equal to two angles and the side between them.


Слайд 6

are equal to the three parties.

The third sign of equality of triangles: triangles are equal if they are equal to the three parties.


Слайд 7

- to make different triangles.4.3 With his left hand in the air to draw a

4. Fizkultminutka

4.1 Inhale breath, stretched.
4.2 Hands - up, worked her fingers - to make different triangles.
4.3 With his left hand in the air to draw a triangle, then - right, and - two.
4.4 In tandem with the neighbor (I have two hands - the two sides, a neighbor helps make a triangle).
4.5 Draw a triangle on the floor of each leg.
4.6 shook off fatigue with hands, feet. Sit down.


Слайд 8



Test your attentiveness.

Pick triangles equal data. Place them in the same order.


Слайд 9



Test your attentiveness.

Pick triangles equal data. Place them in the same order.


Слайд 10

six matches to make four equilateral triangles.1. Put three matches so as to obtain five

1. Of the five matches be 2 equilateral triangles. 2. Of the six matches to make four equilateral triangles.



1. Put three matches so as to obtain five equal triangles(For example)


Слайд 11


Page: 92-93 Exercise №5,7,14



Слайд 12

triangle are equal to the first, but with an empty square. What's the secret? To



AN UNUSUAL TRIANGLE

Triangle divided into 4 parts, and then make a triangle are equal to the first, but with an empty square. What's the secret? To square disappeared?
(Треугольник разделили на 4 части, а потом из них составили треугольник, равный первому, но с пустым квадратом. В чем секрет? Куда исчез квадрат?)
 
 
 
 


Слайд 13

Good bye


  • Имя файла: sign-of-equality-of-triangles-lesson-2.pptx
  • Количество просмотров: 10
  • Количество скачиваний: 0