The second volume of third-grade mathematics is easy to confuse the tabloid content, which is urgent and needs before the end of summer vacation. You adopt it first, and I'll summarize it for you.

La82203008, Team: Baidu Know Education 5

Answer for you, I wish you progress in your study!

If you agree with my answer,

Please adopt it in time, (click on the satisfactory answer icon above my answer)

Mobile phone users please comment "Satisfied" in the upper right corner of the client.

Your adoption,

It is my motivation to move forward! Your adoption will also bring you wealth value.

If you don't understand,

You can ask questions until you understand the question!

If there are any new questions,

Please ask me for help (but don't ask here). The answer is not easy. Please forgive me. ...

Kneel for the example of the date content of the third grade mathematical knowledge structure map of PEP.

one

2. 13

2. 17 position and direction

Understand East, South, West and North (including on the map) cases 1 and 2 1.

Simple road map (four directions) Example 3 1

Exercise 1 1

Understand the four directions of northeast, southeast, northwest and southwest. Example 4,51

Exercise 2 1

two

2.20

Unit 2.24 Exercise 1

Maneuver 2

A divisor is the division of a single digit.

An oral example of dividing a digit by ten, hundred and thousand (quotient is an integer) 1 1

Estimation example of division 2 1

three

2.27

3.3

Pencil department

Exercise 3 1

One digit divided by two digits (all digits of the dividend can be evenly divided) Example 1 1

One digit divided by two digits (divided by ten digits) Example 2 1

Exercise 4 1

One digit divided by three digits (quotient is two digits plus remainder) Division estimation example 3 1

four

3.6

3. 10

Pencil department

Exercise 5 1

4 1 Example of checking calculation by division

Exercise 6 1

The division and quotient of 0 has 0 in the middle or at the end (1). Examples 5 and 6.

Exercise 7 1

five

3. 13

3. 17

Pencil department

There are 0(2) cases of 7 1 at the middle or end of the quotient.

Exercise 8 1

Finishing and reviewing 1

Exercise 9 1

Unit exercise 1

six

3.20

3.24

Unit exercise 1

Maneuver 1

unified plan

Simple data analysis examples 1 and 2 1.

Exercise 10 1

Average examples are 1 and 2 1.

seven

3.27

3.3 1 exercise XI 1

Maneuver 2

Year, month and day

Examples of understanding year, month and day are 1 and 2 1.

Exercise 12 1

eight

4.3

4.7 24-hour timing method 1

Exercise 13 1

Making almanac 1

Maneuver 2

nine

4. 10

4. 14 two-digit times two-digit

Do an arithmetic problem orally.

increase

Write an arithmetic problem

An oral example of integer ten times integer hundred times integer ten is 1 1.

Estimation example 2 1

Exercise 14 1

Example of carry-free multiplication 1 1

Exercise 15 1

ten

4. 17

4.2 1

Write an arithmetic problem

Multiplication Carry Multiplication Example 2 1

Exercise 16 1

Finish and review (exercise 17) 1

Maneuver 1

Maneuver 1

eleven

4.24

4.28 surface area

Area and area unit 1

Comparison example of length unit and area unit 1 1

Exercise 18 1

Examples of area calculation of rectangles and squares 2 and 3 1

Exercise 19 1

thirteen

5.8

5. Progressive rate between12 area units Example 4 1

Ha, km2 1

Exercise 20 1

Unit exercise 1

Maneuver 1

fourteen

5. 15

5. Preliminary Understanding of19 Decimal System

Examples of knowing decimals 1 1

Comparison example of decimal size 2 1

Exercise 2 1 1

Simple decimal addition and subtraction examples 3 and 4 1

Exercise 22 1

fifteen

5.22

5.26 Maneuver 2

solve problems

Example of two-step multiplication calculation: 1 1

Example 2 1

Exercise 23 1

sixteen

5.29

6.2 Design Park 1

Maneuver 2

Mathematical wide angle

Example of simple set problem 1 1

Simple Equivalent Substitution Problem Example 2 1

seventeen

6.5

6.9 Exercise 24 1

Maneuver 2

General revision

Review that the divisor is the division of one digit 1.

Review two digits multiplied by two digits 1

eighteen

6. 12

∣

∣

∣

6. 16 Review the position and direction 1

Review area 1

View the statistics of year, month and day 1

Review the preliminary understanding of decimal 1

Review and solve the problem 1

The tabloid (People's Education Edition) of the second volume of the fifth grade mathematics is urgent! The new environmental accident market dances with other participants in the size of Ake time, and then Baidu map.

Who taught the second book of mathematics in the third grade ~ ~ ~ I'll connect you urgently, choose to download it, there are many.

: wenku.baidu search? C4 % EA % BC % B6 % CA % FD % d 1% A7 % d 1% A7 % B0 % B8 & amp； lm = 0 & ampod=0

Download wenku.baidu./view/42f6fd09f78a6529647d530a. Try this. Now even primary school students use courseware in class. I think we should.

The third grade mathematics volume (PEP) Exercise 24 No.5 [1] Triangle = 180.

Square =60

[2] Circle =37

Triangle =9

Square =54

Regarding the study of summer vacation, I was admitted to Peking University last year. I study fast reading. There is a fast reading class in our school. According to my personal experience, I will tell you a learning software that can help us improve our academic performance and learning efficiency. We learn best in summer vacation. I hope it works for you.

1, speed reading memory is an efficient learning and review method. Its training principle lies in activating our "brain-eye" potential, cultivating us to directly transform text symbols perceived by visual organs into meanings, eliminating potential pronunciation phenomena in our minds, spanning the process from pronunciation to understanding meanings, forming a reading mode directly reflected by eyes and brains, and realizing a leap in reading speed, overall perception, understanding and memory, and concentration.

2. Because we usually don't have much contact with fast reading, we can train the coordination ability of brain and eyes through direct training. Last year, some scholars recommended "Eagle Special Speed Reading Memory Training" as a study plan for holiday students. They thought that software practice for 30 hours could improve reading speed by about 5- 10 times, and learning 1-2 hours a day could achieve good results in two weeks. This suggestion was highly recognized by Zhu Faliang, the former director of the Psychological Research Office of the Central Institute of Education and an expert who has been engaged in brain psychology research for many years. At present, I am studying the holiday speed reading and shorthand training courses carried out by many classes, using the Eagle speed reading and memory training system.

Our class has been studying elite speed reading until now. I have trained to the top level and was admitted to Peking University this year. At the same time, I passed the interview of Hong Kong University of Science and Technology. I can give you my grades if you want. As a lifelong learning skill, it is necessary to apply fast reading to school and students' holiday study.

I hope my experience is useful to you.

The sixth-grade math contest of Requester Education Edition (PEP Edition) is the "Star of Mathematics" evaluation question of the sixth grade.

First, think carefully and fill in carefully. (3 points for each small question, 30 points for * * *. )

1. The actual distance from Beijing to Tianjin is 120km. On a map, the distance between the two places is 3cm, and the scale of this map is ().

2. Rectangular playground, length120m, width 80m. Draw it on the map with the scale of 1 1000, with a length of () cm and a width of () cm.

3. Put two identical cylinders together to become a cylinder with a length of 30cm, but the surface area is reduced by 25. 12cm2, and the original volume of each cylinder is () cubic centimeters.

4. An insecticide, which is prepared from liquid medicine and water in the ratio of1:1500. If there are only 4 kilograms of liquid medicine now, you can make this pesticide into () kilograms.

5. The side area of the cylinder is 188.4 square decimeter, and the radius of the bottom surface is 2 decimeter. Its height is () decimeter.

6. There are two cylinders with equal base radii, and the height ratio is 3: 5. The volume of the second cylinder is 45 cubic centimeters, and the volume of the second cylinder is () cubic centimeters more than the first one.

7. Make 10 cylindrical ventilation pipes with iron sheet, each section is 80 cm long and the circumference of the bottom circle is 34 cm. At least iron () square meters is needed.

8. If the ratio of two ratios ab and cd is reciprocal, then the ratio of A, B, C and D can be ().

9. There is a wooden cube with a side length of 4 decimeters. Make this piece of wood into the largest cylinder, and the volume of this cylinder is ().

10, the bottom area of the cone is equal to the bottom area of the cylinder. It is known that the volume ratio of cone to cylinder is 16, the height of cylinder is 4.8, and the height of cone is () cm.

Third, choose carefully and sit in the right position. (2 points for each small question, *** 12 points. )

1, if A×2=B÷3, then a: b = ()

① 2:3 ② 3:2 ③ 1:6 ④6: 1

2. Measure the height and shadow length at the same time and place ()

① Out of proportion ② In direct proportion ③ In inverse proportion.

3. If the distance of 3 cm on the map indicates that the actual distance is 1.5 mm, then the scale of this map is ().

① 1:20 ② 1:2 ③20: 1

4. On the graph with the scale of 1: 8, the diameter ratio of the two circles A and B is 2: 3, so the actual diameter ratio of the two circles A and B is ().

① 1 :8 ②4 :9 ③2 :3

5, a cylinder, the side to get a square, its height is () times the radius of the bottom.

①2 ② 4 ③π ④2π

6. Cylinders and cones are equal in height and volume. The bottom area of a cone is 12 square decimeter, and the bottom area of a cylinder is ().

①4 square decimeter ② 12 square decimeter ③36 square decimeter

Third, carefully scrutinize and be a good referee. (2 points for each small question, 20 points for * * *. )

1. In proportion, the quotient of the product of two internal terms and two external terms is equal to 1. ( )

The radius of a circle is proportional to its area. ( )

3. The processing time is fixed, and the number of parts to be processed is inversely proportional to the time required to process each part. ( )

4. The actual distance is certain, and the distance on the map is proportional to the scale. ( )

5. In the case of a certain area, the side length of the square brick is inversely proportional to the number of blocks required. ( )

6. Draw a rectangular playground on the map with the scale of 1: 1000. The playground area on the map is smaller than the actual one 1000 times. ( )

7. If the side areas of two cylinders are equal, the perimeters of the bottoms of the two cylinders must be equal. ( )

8. The bottoms and heights of cylinders and cones are equal, and their volumes differ by 48 cubic decimeters. The volume of this cone should be 24 cubic decimeters. ( )

9. The height of the cone is unchanged, the radius of the bottom surface is expanded by 2 times, and the volume is also expanded by 2 times. ( )

10. On the map with the scale of 1: 100, the area of a square is 9 square centimeters, and the actual area of this square is 9÷ 1 100 =900 square centimeters. ( )

Fourth, carefully examine the questions and calculate them carefully. (*** 14)

1, write directly. (65438+ 0 point for each small question)

7 ÷ 1.4= 0.9+99 ×0.9 = 400÷ 25÷ 8=

1.25× 0.8 = (2.4+ 1.2)÷ 6= 1.9× 4 ×0.5=

2. Solution ratio. (2 points for each small question)

8: 13=24:х 16 :χ =29 :8 15 4024 =5χ χ25 = 1.27.5

Fifth, solve the problems in life. (1 4 points for the question and 5 points for other questions) 1. The liquid medicine and water in pesticides are prepared according to the ratio of 1: 1500. Now there are 5 grams of this potion. How many grams of pesticide can you mix? (4 points)

2. A conical sand pile with a bottom area of15m2 and a height of 2m. How thick can this pile of sand be spread on a road 400 meters long and 3 meters wide?

3. The diameter of the bottom of the cylindrical glass container is10cm. After Xiao Ming took an iron block out of the water in this container, the water level dropped by 3 cm. What is the volume of this iron block?

4. A cylindrical iron drum without a cover, with a height of 8 decimeters and a bottom diameter of 34. Grandpa Wang wants to make two buckets like this. How many square decimetres of iron will be used? Take the approximate value in one way and keep the whole ten square decimeters. )

5. After a cylindrical steel with a length of 1.5m is cut into three sections, the surface area is increased by 9.6 square decimeters. What is the original volume of this steel?

Ask someone to teach the third grade math review materials. :lspjy。 /forum.php？ The forum shows. fid=80。 page= 1

Please look here.

How to design the wide-angle collocation of mathematics in the third grade of New People's Education Edition: collocation and competition; simple collection and equal substitution. A simple set is to divide it into two parts first and then find out the similarities between them. Equivalent substitution (using a balance), for example, a watermelon equals four weights, four apples equals 1 weight, and that watermelon equals several apples. The first volume of grade four: reasonable arrangement of time, the second volume of grade four: planting trees, and the first volume of grade five: coding, understanding the meaning of ID card and postal code. And can be coded simply.