1, can correctly master the writing format of vertical marks, master the writing style of vertical marks and the meaning of each step.

2. Further understand the meaning of division.

Division with remainder

1, experience the meaning of remainder division.

2. Accumulate the correct method of trial quotient.

4. You can correctly calculate the vertical division with remainder, knowing that the remainder must be less than the divisor.

5, can use the knowledge of division with remainder to solve some simple practical problems.

Divide the apple (vertically)

Knowledge points:

1, master the vertical writing format of division in the table.

2. Master the vertical writing of division and the meaning of each step.

Divide oranges (divide by remainder (1))

Knowledge points:

1, experience the meaning of remainder division.

2. Division with remainder will be expressed vertically, and the remainder must be less than the divisor.

Divide strawberries (divided by remainder (2))

Knowledge points:

1, master the correct test method. Using the multiplication formula, the product of the multiplication of two numbers is closest to the dividend, but less than the dividend.

2, can use the knowledge of division with remainder to solve some simple practical problems.

Charter (for division with remainder (I))

Knowledge points:

Flexible use of remainder division knowledge to solve simple practical problems in life.

Scheduling cars (division with remainder (2) is applied)

Knowledge points:

Flexible use of division with remainder and related knowledge to solve simple practical problems in life.

Know decimeters, millimeters and kilometers

1, decimeter is represented by the letter dm, 1 decimeter is written as 1dm.

2. Millimeter is expressed by the letter mm, and 1mm is written as1mm.

3. Kilometers are represented by the letter km, and 1km is written as 1km.

Conversion between meters, decimeters, centimeters, millimeters and kilometers

1, 1cm= 10mm or 1cm = 10mm.

2. 1 decimeter =10cm or1DM =10cm.

3. 1m = 100 cm or 1m= 100cm.

4. 1m = 10 decimeter or 1m= 10dm.

5. 1 km = 1 000m or1km =1000m.

The actual length is between 1 decimeter, 1 mm and 1 km.

1, the thickness of an IC card is about1mm.

2. The length of 1 sleeper is about1decimeter.

3. The distance between two bus stops is about 1km.

4, according to the specific situation to choose the appropriate length unit.

How long is this pencil (decimeter, millimeter)?

Knowledge points:

Through actual measurement, understand the relationship between meter, decimeter, centimeter and millimeter.

1 decimeter = 10 cm or1DM =10cm;

1m = 10 decimeter or1m =10 DM;

1cm= 10mm or1cm =10mm;

2. Know the actual length of 1 decimeter or 1 millimeter.

3. You can use the relationship between length units for unit conversion.

How long is 1 km (km knowledge)

Knowledge points:

The length of 1. Experience 1 km.

2. Understand the relationship between kilometers and meters; 1 km = 1 000m or1km =1000m.

3, can correctly use the length unit.

Understanding angle (preliminary understanding of angle)

Knowledge points:

1, the angle consists of a vertex and two straight edges;

2. Names, symbols and pronunciations of each part of the angle;

3. You can use the symbol of angle (? ) indicates the angle;

4, will compare the size of the angle. Understand that the size of the angle is related to the size of the openings on both sides and has nothing to do with the length of the sides;

5, can identify right angles, acute angles and obtuse angles.

Rectangular and square

Knowledge points:

1, master the characteristics of rectangular squares: both rectangles and squares have four sides, four right angles, the opposite sides of the rectangle are equal, and the four sides of the square are equal.

2. Understand the relationship between rectangle and square: square is special. Rectangular.

3. Can draw rectangles and squares on grid paper.

parallelogram

Knowledge points:

1, intuitively understand the parallelogram, and know that the parallelogram has four sides, four corners, and the opposite sides are equal.

2. Understand that a rectangle is a special parallelogram.

Appreciation and design

Knowledge points:

1. Further master the graphics you have learned and feel the beauty of graphics.

2. You can design patterns on paper with the patterns you have learned, and there are certain rules for coloring.

Understand the new counting unit

1, do you know the counting unit? Ten million?

2, the relationship between the units of calculation within ten thousand.

3, ten thousand digit sequence table

Read and write within 10 thousand

1, can read numbers within ten thousand.

2. Can write numbers within 10,000.

3. Feeling? Ten into one? Decimal counting method based on

Compare sizes within 10 thousand

1 will compare the sizes of numbers within 10,000.

2. Symbols will be used to indicate the size of numbers within 10,000.

3. Estimate the quantity within 10,000 according to the actual situation.

Counting (learn about the new counting unit)

Knowledge points:

1, do you know the counting unit? Ten million? .

2. Understand the relationship of counting units within ten thousand: 10, one is ten; 10 Ten is one hundred; 10 One hundred is one thousand; 10 One thousand is ten thousand.

3. Master the numerical order of numbers within 10,000. Starting from the first place on the right, the order is one, ten, one hundred, one thousand, ten thousand.

4. Combined with the specific situation? A thousand? And then what? Ten thousand? Have specific feelings.

5. initial feeling? Ten into one? Decimal notation.

Dial (read and write within 10,000)

Knowledge points:

1, number: one by one; Ten ten place numbers; A hundred places and so on.

2. Can read numbers within 10000: read the numbers on each digit in turn from the high order, and don't read any zeros at the end. Only read one zero if there are one or two zeros in the middle.

3. Can write numbers within 10000: Write the numbers on each digit in turn from the high place. If there is no previous unit, write zero on that number.

4. initial feeling? Ten into one? Decimal notation.

Compare (compare sizes within 10 thousand)

Knowledge points:

1 will compare the sizes of numbers within 10,000. Methods: First, compare the digits. If the digits are the same, compare with the highest digit first, and then compare with the next digit.

2. Symbols can be used to indicate the size of a number within 10,000.

3. We can estimate the number of people within 10,000 according to the actual situation.

statistics

1. Read the information

2. Analysis information and forecast information

bar chart

1. Read

Vertical: expressed by the height of a straight bar (horizontal means category, vertical means quantity).

Horizontal: expressed by the length of a straight bar (vertical indicates category and horizontal indicates quantity).

2. Personal experience in collecting data

3. Draw a bar chart and analyze it.

Read statistical charts (bar charts)

Knowledge points:

1. Be able to read statistical charts and get information from them.

2. Understand the bar chart and realize that the bar chart can directly represent quantity.

3. Be able to make simple analysis according to statistical charts.

Discussion (statistical chart)

Knowledge points:

1, and make a preliminary analysis and prediction of the data in the statistical chart.

2. pass? Soak bean sprouts? The data recorded in small experiments can be drawn on grid paper for analysis.

Pinpoint the direction

1. Given one direction, find the other seven directions.

2. Describe the position of the object with words in eight directions.

Know the route

1, you can understand a simple road map in eight directions.

2. The road map shows the walking direction, distance and passing place from the starting point to the destination.

Pinpoint the direction

Knowledge points:

1. Given a direction (east, south, west or north), you can identify the other seven directions and use these words to describe the position of an object.

2, according to the given direction, can identify the other seven directions in the map.

Know the route

Knowledge points:

1, learn to understand a simple road map in eight directions.

2. According to the road map, you can tell the direction, distance and passing place from the starting point to the destination.