Mathematics (Grade 1)
Topic: Addition and subtraction within 3.
Purpose: to continue work on the formation of counting skills in forward and backward order within 3, to develop the ability to carry out addition and subtraction within 3, to begin preparing for the solution simple tasks for addition and subtraction;
develop computing skills. attention, memory;
cultivate respect for the answers of comrades.
Equipment: counting material, type-setting cloth, cash desks of numbers.
Teacher: Solovyova O.A.
During the classes:
1. Organizing moment.
Attention game "Photo Eye":
Remember the order in which the animals are (4-5 sec.);
What changed? who is worth 2 in a row? who is worth 3, in a row? who is behind the bear? who is behind the fox? who is in front of the rabbit? who stands between the bear and the wolf?
2. Oral account.
Counting forward and backward within 3;
Game "Show the Frog":
(bumps with numbers, the frog moves over bumps from 2 to 3 and back)
Emphasize more each pair: 3 and 2, 1 and 2, 3 and 1, 2 and 3, 2 and 1.
3. Message of the topic of the lesson.
4. Work on the topic of the lesson:
1) work with typesetting canvas:
Sk. carrots(2)
How much has it become? (3) Has it become more or less?
How do we write this with an example? 2+1=3
Read the example in 2 ways. (similar work 1+1=2)
2) Writing examples in a notebook.
5. Physical minute.
6. Work with chopsticks.
1) Put one stick, remove one, how much is left, has it become more or less. How to write it down with an example? (3-1=2)
(similar work 3-2=1)
2) writing examples in the second column.
7. Game "Train"
Now we need to seat passengers in cars so that everyone rides in their own car, each passenger has a ticket with a number (there is a train on the board, on each car there is an example that needs to be solved 2-1=1, 3-1=2, 1+1 =2, 2+1=3, 1+2=3, 1+1+1=3)
Math lesson in 1st grade
Topic: Addition and subtraction within 3.
Goals:
Educational: to consolidate knowledge of numbering numbers within 3, to form computational skills, the ability to read expressions mathematically correctly, the ability to solve problems;
Educational: to instill an interest in reading, a love of books, to cultivate accuracy;
Correctional-developing: development visual perception, computing skills, memory correction, fine motor skills, functions of analysis and synthesis in solving the problem.
Equipment: numbers, fairy-tale heroes, counting material: flowers, butterflies, dragonflies, geometric figures, plasticine.
During the classes
IOrganizing time.
- Guys, do you like fairy tales?
Today we are going to travel to a fairy tale. Which one, try to guess.
Before the wolf did not tremble,
Run away from the bear
And the fox on the tooth
Still got caught ... (kolobok)
IIKnowledge update.
There lived a bun in the world,
Gingerbread man - ruddy side.
He rolled away from a fairy tale
And today, guys,
He rolled into class. ( Kolobok image)
What does a bun look like? What shape does it have?
Let's make koloboks from plasticine. You choose the color yourself.
Well done. Now let's roll it in a square.
Gingerbread Man really wants to see how you learned to work in class, sit properly at your desk, and complete all the teacher's tasks. He brought you a book with fairy tales, you have already met with the fairy tale "Gingerbread Man". Are you ready to go along the mathematical paths with Kolobok?
Then go!
IIIVerbal counting.
Kolobok jumped off the window and rolled down the path. And who is facing him?
And in the meadow, look
Flowers, butterflies, mushrooms.
They look with colorful eyes
And they seem to say:
Enjoy and compare!
Look what a beautiful field. Let's do the task of the bunny to count and compare.
Count how many daisies? Find the corresponding number.
How many bells?
Compare which colors are more?
What is less than 3 or 2?
How many butterflies?
How many dragonflies?
Who is less?
Which number is greater? (2 or 1)
Compare bluebells and butterflies?
There are numbers hidden in our clearing, find them. Put them in descending order.
IVConsolidation.
Gingerbread man rolled
Along the forest path.
Suddenly by the old Christmas tree
He met a wolf.
I haven't eaten since morning
Now I'll eat you.
What are you, gray, do not rush
And solve the problem!
Let's help the wolf complete the task?
1) Work in a notebook.
a) Help Kolobok get to the house.
b) Solve the examples. (p. 88 no. 55)
VFizkultminutka.
Are you tired?
Well, then everyone stood up together.
They stomped their feet,
They clapped their hands.
Twisted, turned
And everyone sat down at the desks.
We close our eyes tightly
We count to five together.
We open, we blink
And we continue to work.
Bear: Kolobok, I'll eat you!
Kolobok: What you! I can't eat.
Watch with me friends!
Bear: Okay tasty Kolobok ,
I'll let you go, my friend.
Let the girls and boys
Solve the task for the bear.
VIWorking on a task.
Look at our field. Make a problem about dragonflies.
Analysis and solution of the problem.
VIIgeometric material.
Fox: I am a fox, I am a sister,
I walk silently.
Early in the morning out of habit
Went out hunting.
Gingerbread Man, Gingerbread Man, I'll eat you.
Guys, remember how the fairy tale ended?
Let's change the end of the story. Fox, give us a task, we will complete it and save Kolobok.
Here's a task for you. From the details, build a house for Kolobok.
What geometric shapes do we have? ( One student at the blackboard, the rest in notebooks)
Compose and paste.
How many figures did you need?
What figures do you know?
VIIISummary of the lesson.
Well done! You did a good job at the lesson and saved Kolobok.
What did we do in class today?
What task did you like the most?
What difficulties did Kolobok meet?
What did you do to help him?
What Russians folk tales would you like to use in class?
Abstract of a mathematics lesson on the topic "Addition and subtraction within a thousand", Grade 3 (TMC " Primary School XXI century")
Mathematics already then needs to be taught, that it puts the mind in order.M. V. Lomonosov
Goals:
Educational:
- improve the skills of addition and subtraction within 1000;
- to consolidate the methods of written and oral calculations, the ability to solve.
Developing:
- develop attention, memory, mathematical speech, thinking of students.
Educational:
- foster a sense of camaraderie, mutual assistance;
- develop a sense of self-confidence.
Lesson type: lesson learning new material.
Forms of organization learning activities: frontal, work in groups, individual.
Methods: problematic, partially exploratory, frontal conversation.
Equipment:
- computer, projector;
- computer presentation.
DURING THE CLASSES
Teacher: To argue the right thing,
In order not to know failures in life,
Let's go boldly into the world of mathematics,
In the world of examples and different tasks.
Today we are not holding an ordinary lesson, but a lesson-game in mathematics "Sea Voyage", where each team will show their ingenuity, the ability to accurately count, and answer questions. 2 teams participate in our mathematical journey: “CHAMPIONS” and “LEADERS”, and experienced navigators will follow our journey, these are: (Name of the jury)
Teacher:
- Look around, find the words that will help us along the way.
(The words “friendship”, “smile”, “cowardice”, “determination”, “savvy”, “attention”, “help”, “laziness”, “rudeness” are attached to the walls of the office.)
- I agree with your choice.
- Tell me, why do people go on trips? (Get new impressions, learn new things)
- Let's repeat what will be useful to us on the road. I will ask each of you a question, and the correct answer will bring the team 1 point.
- name 4 arithmetic operations in mathematics; (addition, subtraction, multiplication, division)
- find the sum of numbers 42 and 35; (77)
- decrease 63 by 8; (55)
How much more is 52 than 9? (43)
- the first factor is 6, the second factor is 8, the product…;
- dividend 63, divisor 9, quotient ...;
How many times is 24 greater than 3?
- Product 3 and 4?
- The sum of the numbers 100 and 357?
Our sea journey begins and our ship sets off. The first competition of the game is called "Give the mooring". You have to think and answer 3 tasks. If a team does not cope with its task, then another team solves this problem.
1. Find a number that has 7 tens.
709
607
372
2. What number follows the number 459 when counting?
669
460
579
3. What number precedes the number 500 when counting?
400
555
499
4. Name the number in which 8 hundreds and 1 unit.
810
81
801
5. What number consists of 3 hundreds?
30
333
300
6. Name the number that can be written as the sum of allowed words. so: 400+80+6
684
486
864
Well done! You have successfully completed the first task. And we continue our voyage. And ahead of us is waiting for another test "Sea Knot". The sea knot is a very strong, reliable knot and it is not so easy to untie it. But we will be able to do this if we complete 3 tasks. Ready?
1 task: Encrypted on the scoreboard popular expression, the author of which is the ancient Greek mathematician Pythagoras. Decipher this sentence.
2 task: Who will solve the problem faster?
640 - 249 =
740 - 349 =
596 + 404 =
357+ 633=
350+90+50=
440+70+60=
3 task:
Solve the problem: A farmer bought 5 piglets, 20 kg each, and 3 identical rams. The total mass of these animals is 280 kg. What is the mass of one sheep? (60 kg.)
Fizkultminutka. Now let's take a break and play. If you agree, clap, if you don't agree, stomp.
There are 4 oceans on earth. (We clap.)
Suitable for drinking and fresh, and salty water. (Stomp.)
Produced with water electricity. (We clap.)
The most salty sea is the Dead Sea. (We clap.)
There are 300 seas on earth. (Stomp.)
Baikal is the deepest lake in the world. (Clap.)
The blue sea does not exist. (We clap.)
There is no life without water. (We clap.)
In the Black Sea the water is black, Red - red, in Yellow - yellow.
(Stomp.)
Water makes up the majority of the human body. (We clap.)
The spring and the key are not the same thing. (Stomp.)
The beginning of a river is called the source, and the end is called the mouth. (We clap.)
Rested, and again on the road. Our sea voyage continues.
Our ship received a secret radiogram. She came encrypted, with the help of conventional signs. Our task is to find out what was in the radiogram. The next competition is "Radiogram".
Here is her encrypted text.
We continue our journey by sea. It looks like a storm is coming. And in order to successfully survive it, you need to solve the task of ingenuity in our next competition "Sea Storm".
Task for the first team:
Junga Vanya lives in a 12-storey building on the 9th floor, counting from the top. On which floor below does cabin boy Vanya live? (on the fourth.)
Task for the second team:
Kok Shurik baked 10 pies and gave the boatswain 2 more pies than he took himself. How did cook Shurik divide the pies? (I took 4 for myself, and 6 for the boatswain.)
Task for the first team:
There were 19 shells on two shelves, and the same number of shells were placed on each shelf as it was on it. How many shells were on the two shelves after that? (38 shells.)
Task for the second team:
The captain and his son have been together for 40 years. How old will they be
together after 3 years? (46 years old)
Our sea journey will soon end and our ship will moor to the shore. In the meantime, let's have a rest and answer funny questions in the last competition "Jokes of a sailor". (The first person to raise their hand answers.)
- Name the only geometric figure that can be drawn on water. (A circle.)
- One corner of the stool was sawn off. How many corners does she have now? (Five.)
- The first and only thing that Pinocchio depicted in a notebook. (Blot.)
- In Antarctica, a penguin
I counted 20 ice floes.
Suddenly ice floes
Broke into halves.
Lost penguin...
How many ice floes are in front of him?
Our sea voyage has come to an end. We successfully reached the shore and overcame all difficulties. And now let's sum up. Whose team was faster, smarter? (calculation of points, awarding of winners).
Presentation on the topic: Lesson-game in mathematics grade 3 "Sea voyage"
LESSON PLAN
Math lesson.
"Addition and subtraction within 3"
Target:
Educational: to consolidate knowledge of numbering numbers within 3, to form computational skills, the ability to read expressions mathematically correctly, the ability to solve problems;
Nurturing: instill interest in the subject of mathematics, love for the book, cultivate accuracy;
Correction-developing: development of visual perception, computational skills, memory correction, fine motor skills, analysis and synthesis functions when solving a problem.
Planned results: students will learn to name numbers in the order in which they appear when counting; analyze and manage account execution activities; collaborate with peers. Compare objects on various grounds.
Personal UUD: development of cognitive interests, educational motives. Ability to organize a work space.
Cognitive UUD: search and selection of the necessary information to complete educational tasks; development of mental operations: comparison, analysis, generalization.
Communicative UUD: build a dialogue, take into account the position of the interlocutor (party neighbor), other students.
Regulatory UUD: accept and take into account the guidelines allocated by the teacher, actions in educational material, in cooperation with the teacher; exercise control and self-control, development of attention.
Information Technology Resources: cartoon for physical minutes "Charging with a mouse."
Forms of organization of UPD students: frontal, individual, work in pairs.
Lesson type: lesson of generalization and systematization of knowledge.
Types of jobs: Action control. Quality control.
Work in notebooks.
Teaching and material equipment of the lesson (equipment): fairy tale characters: Thumbelina, frog, beetle, mole, swallow, Elf; counting material: counting sticks, numbers, geometric shapes; pictures: flowers, leaves, grains.
DURING THE CLASSES
I .Org. moment.
Purpose: to organize the general readiness of children for the lesson from the side of educational activities, concentration of attention.
Guys, do you like fairy tales?
Today we are waiting for a journey into a fairy tale, and which one, try to guess.
“A girl appeared in a cup of a flower.
And there was that girl a little more than a fingernail.
The girl slept in a nutshell.
Such a girl, how sweet she is!
Who is it? (Thumbelina)
II . Actualization of knowledge (repetition).
Imagine, guys, while Thumbelina was sleeping, someone dragged her into the swamp. Listen to the riddle:
1 ) “Who lives in the swamp? Does he croak loudly?
Sleeping in water lilies - no pillow? This is apparently…”(frog)
The frog dragged our girl to her in the swamp, and in order for Thumbelina to get out, you need water lilies, which are folded in the swamp in size, from the largest to the smallest.
Well done! Saved Thumbelina.
But our girl was waiting for the next test.
2) “He is horned and mustachioed, many-legged and winged,
Makes a buzzing sound when flying thick ... "(beetle)
Guys, the bug is about to drag Thumbelina off.
Paws on the left (3), - black wings (2), white wings (2) - horns (2)
(And count my friends: dragonflies, butterflies, snails, grasshoppers, bugs)
Well done! The beetle has flown!
Guys, but that's not all, the next test awaits our girl:
“The floor in the closet will gnaw through, it will eat all the supplies,
Grey, little thief, what's his name? Of course…"(mouse)
Guys, now the mouse wants to drag our girl. The mouse likes to run very fast. Let's help Thumbelina escape and complete the task of the mouse.
PHYS. MINUTE "MOUSE CHARGING"
Thumbelina ran away.
Thumbelina ran and ran and suddenly saw ...
III . Work on acquired knowledge and skills.
1) "This beast lives in the ground
There he hides in the darkness.
The beast digs an underground passage. Guess this is…”(mole)
And so, guys, after all, the Mole dragged our girl underground and said until you count my supplies, I will not let you go free.
We count the supplies of the Mole. (grains)
1+1= 3-1=
2+1= 3-2=
(On the desk)
Well done! Released the mole Thumbelina.
IV . Application of acquired knowledge and skills.
1) - Thumbelina ran and saw a swallow, the swallow lay on the ground and waited for help. Now you need to complete the task in notebooks:
insert missing numbers. And one at the blackboard.
12. 1.3 .23
Thumbelina cured the swallow. The girl sat on a swallow and they flew to warmer climes. Thumbelina met the Elf and they began to plant flowers there in the flower beds.
(1) (2) (3)
Arrange the flowers in the beds. Well done! What a beauty.
IV . Summary of the lesson.
Guys, where have we been? (in a fairy tale)
Whom did they help? (inch)
How did they help? (considered, decided)
Thumbelina thanks everyone for the help and treats you with her inch sweets.
