Solving multiplication and division problems Securing the material covered City ABC

Objectives: Create conditions for:
(a) Comprehensive consolidation of the multiplication and division table by 2,3,4,5,6,7,8;
(b) Solving forward and backward problems;
(c) Solving the tasks drawn up.
Improve computational skills To foster a conscious attitude towards compliance with the Traffic Regulations.

Lesson progress

1. 1. Organizational moment.
   2. Message of lesson topic and objectives.

Expressive reading.
The city in which you and I live
You can rightfully compare it to a primer.
ABC of streets, avenues, roads
The city gives us a lesson all the time.
Here it is, ABC - overhead:
Signs are hung along the pavement.
Always remember the ABC of the city,
So that trouble doesn't happen to you.
We'll have a guest in this class, guys.
(Traffic light posted)
His name is Traffic Light He has prepared interesting tasks for you and at the same time wants to know if the walkers are literate in our class, if everyone can read the alphabet of the city Today we will go on a trip around our city And what we will eat on, you will know if you solve the traffic light mystery.
Traffic light mystery: This word starts the same way as the third month of summer, and ends the same way as the first month of autumn. Who figured it out? Right, it's a bus (hang the drawing).

1. 1. Oral counting.

We go in and take our seats Who came in first: boys or girls?
That's right, the boys gave way to the girls.
Let's solve the problem right away: Our bus has 35 seats, there are 9 girls and as many boys in the class, How many available seats are there? the task is solved orally: 35 - (9+9) = 17 seats.
That's right, now you can go.
A recording of the song is played.
Here's the first stop. We see this sign on it. (Hang out the No Beeping Signal Signal).
Who knows what it's called?
That's right, "No beeping"
Then we will silently fill out the table.
On board:
Multiplier 5 ... ... ...
Multiplier 8 7 3 8
Work ... 49 27 56
Answers: 40, 7, 9, 7.
How was the unknown multiplier found?
Divisible 32 21 ... 72
Divisor 4 ... 8 9
Private ... 3 8 ...
Well done! Now you can move on.
And here we see another sign. (Circular motion sign on the board)
Who can tell you what it's called?
That's right, Circle Movement
Where is such a sign placed?
And you need to solve circular examples:
81:9=9 4*6=24 36:6=6 24:8=3
12:3=4 9*4=36 6*4=12 3*3=9
Children in notebooks write examples in a "chain" (Check from the spot)
Who did this task cleanly and neatly? Get a pink chip.

1. 1. Problem solving.

You can go further. Here comes the new sign.
(The Main Road is displayed on the board)
What is he telling us?
That's right, this is the Main Road sign

Let's solve the problem (the problem on the sheets on the table): one canister has 10 liters of gasoline. How many liters are in 3 of these canisters? Solve the problem on their own: 10*3=30(l). Answer: 30l in three canisters.
Now let's make and solve 2 inverse problems.
What problems are called inverses?
1.3 identical cans of 30l gasoline. How many liters of gasoline are in one canister? 30:30=10(l)
2. One canister contains 10l of gasoline. How many canisters will it take to pour 30l of gasoline? 30:10=3(l)

Let's solve the problem: three liters of gasoline costs 18 rubles. How much money do you have to pay for 7 liters of the same gasoline?
What does the task say?
What do we know?
What should you find out?
What words will we write down in a brief entry?
Price Quantity Cost

? 3l 18 rub.
(18:3)*7=42(rub.)
Well done! You can drive on the main road. And now you can rest. (For correct operation, a red token).

1. 1. Physical education minute.

Poem
Walking carefully,
Watch the street-
And only where possible,
Cross her.
(Movements: Walking in place, looking left, right, walking again).

1. 1. Working in groups.

And now Traffic Light and I want to know if you can work in groups, there are envelopes with specific tasks on each row. On my command, you open them and make a mosaic. If you solve all the examples correctly, you should get a drawing. Attention, started.
(Group work underway, kids assembling math mosaics. Should get pictures with road signs).
What do these signs tell you? (A student of each group tells what the sign is called, what it means).
Well done guys, you've proven that you can work in groups.
The best group receives a token.

1. 1. Independent work.

Job Cards - Examples No. 1 page 41 (check from the spot).

1. Lesson result.

Raise your hand who completed this task correctly and carefully You get a token.
Who has 3 tokens or more? you get 5 for working in class. And traffic light and I say goodbye to you. Thanks for the job. Our bus doors have opened. Which door do you exit through?
Don't forget the ABCs of the city. Follow traffic rules
Choir.
The ABC of the city
Remember always,
So that it doesn't happen
There's trouble with you.

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