1 count.
2 ratio 1
Understanding, addition and subtraction of 3 1 ~ 5
4 Understanding objects and figures
5 classification
Understanding and addition and subtraction of 66 ~ 10
Mathematics paradise
Know the number 7 1 1 ~ 20.
8 understand clocks and watches
Carry addition between 9 and 20
Our campus
10 general review
postscript
The second volume of the first grade
1 location
Subtraction of abdication within 20
3 the combination of graphics
Understanding of numbers within 4 100
Put it on the table and think about it.
5 know RMB
Addition and subtraction within 6 100 (1)
7 know the time
Xiaoxiao shop
10 general review
The first volume of grade two
1 unit of length
Addition and subtraction within 2 100 (2)
I have grown taller.
A preliminary understanding of angle 3
4 table multiplication (1)
5 observe the object
6 table multiplication (2)
Take a look and swing it.
7 statistical data
8 mathematical wide angle
9 General review
The second volume of grade two
1 Solve problems
2 Table division (1)
3 graphics and transformation
Jane Jane
4 Table division (2)
Understanding of numbers within 50 thousand
6 grams and kilograms
Addition and subtraction within 70,000 (1)
how heavy
8 statistical data
10 general review
subordinate
The first volume of grade three
1 measured value
Addition and subtraction within twenty thousand (2)
3 quadrilateral
4 remainder division
5 hours, minutes and seconds
6 digits times 1 digit.
A preliminary understanding of 7 points
8 possibility
9 mathematical wide angle
Throw it.
10 general review
postscript
The second volume of grade three
1 position and direction
A divider is the division of a single digit.
3 Statistical data
4 years, months and days
Make an almanac
5 Two digits multiplied by two digits
Area 6
A preliminary understanding of 7 decimal places
8 solve the problem
Design campus
10 general review
postscript
The first volume of the fourth grade
Understanding of 1 large number
/kloc-how big is 0/100 million?
Measurement of two angles
3 Three digits multiplied by two digits
4 parallelogram and trapezoid
The divisor is the division of two digits.
6 statistical data
Have you ever sent a greeting card?
7 mathematical wide angle
8 General review
subordinate
postscript
The second volume of the fourth grade
Four operations of 1
2 position and direction
3 Algorithms and Simple Calculations
nutritious lunch
The Significance and Properties of 4 Decimals
5 triangle
Addition and subtraction of 6 decimal places
7 statistical data
Xiaoguanjia
9 General review
postscript
The first volume of the fifth grade
1 decimal multiplication
2 fractional division
3 Observe the object
4 Simple equation
Measure and find the law.
5 area of polygon
6 statistics and possibilities
Puyipu
7 mathematical wide angle
8 General review
The second volume of the fifth grade
1 graphic conversion
2 factors and multiples
Cuboid and cube
Paint fence
4 The meaning and nature of the score
Addition and subtraction of 5 fractions
6 statistical data
make a telephone call
8 General review
The first volume of the sixth grade
1 location
2 decimal multiplication
3 fractional division
4 yuan
Determine the starting line
Five percent
6 statistical data
Reasonable deposit
8 General review
The second volume of the sixth grade
1 negative number
2 cylinders and cones
3 ratio
Math in a bicycle
4 Statistical data
6 sorting out and reviewing
(1) Numbers and Algebra
(2) Space and graphics
(3) Statistics and probability
(4) Comprehensive application
Mathematical problems in stamps
All the calculation rules in the sixth grade mathematics define theorem formulas.
Area of triangle = base × height ÷2. The formula S= a×h÷2.
Area of a square = side length × side length formula S= a×a
Area of rectangle = length× width Formula S= a×b
Area of parallelogram = base× height Formula S= a×h
Trapezoidal area = (upper bottom+lower bottom) × height ÷2 Formula S=(a+b)h÷2
Sum of internal angles: sum of internal angles of triangle = 180 degrees.
Cuboid volume = length× width× height formula: V=abh
Volume of cuboid (or cube) = bottom area × height formula: V=abh.
Volume of cube = side length × side length × side length formula: V=aaa.
Circumference = diameter × π formula: L = π d = 2π r
Area of circle = radius × radius× π formula: s = π R2.
Surface (side) area of cylinder: The surface (side) area of cylinder is equal to the perimeter of bottom multiplied by height. Formula: s = ch = π DH = 2π RH.
Surface area of cylinder: the surface area of cylinder is equal to the perimeter of the bottom multiplied by the height plus the area of the circles at both ends. Formula: S=ch+2s=ch+2πr2.
Volume of cylinder: the volume of cylinder is equal to the bottom area multiplied by the height. Formula: V=Sh
Volume of cone = 1/3 bottom× product height. Formula: V= 1/3Sh
Law of fractional addition and subtraction: Fractions with the same denominator are added and subtracted, only the numerator is added and subtracted, and the denominator remains unchanged. Fractions of different denominators are added and subtracted, first divided, then added and subtracted.
The multiplication of fractions is: use the product of molecules as numerator and the product of denominator as denominator.
The law of division of fractions: dividing by a number is equal to multiplying the reciprocal of this number.
Unit conversion
(1)1km =1km =1000m1m =10 decimeter1decimeter =10 cm/kloc.
(2) 1 m2 = 100 square decimeter 1 square decimeter = 100 square centimeter 1 square centimeter = 100 square millimeter.
(3) 1 m3 = 1000 cubic decimeter 1 cubic decimeter = 1000 cubic centimeter 1 cubic centimeter = 1000 cubic millimeter.
(4) 1t = 1000kg 1kg = 1000mg = 1kg = 1kg。
(5) 1 hectare = 1 ten thousand square meters 1 mu = 666.666 square meters.
(6) 1 liter = 1 cubic decimeter = 1000 ml 1 ml = 1 cubic centimeter.
As far as the calculation formula of quantitative relationship is concerned
1. unit price × quantity = total price
2. Single output × quantity = total output
3. Speed × time = distance
4. Work efficiency × time = total workload
The Formula of Elementary School Mathematics Definition Theorem (2)
First of all, arithmetic.
1. additive commutative law: Two numbers are added to exchange the position of addend, and the sum is unchanged.
2. Law of addition and association: When three numbers are added, the first two numbers are added first, or the last two numbers are added first, and then they are the same as the first number.
Three numbers add up, and the sum remains the same.
3. Multiplication and exchange law: when two numbers are multiplied, the position of the exchange factor remains unchanged.
4. Multiplication and association law: When three numbers are multiplied, the first two numbers are multiplied, or the second two numbers are multiplied first, and then the third number is multiplied, and the product remains unchanged.
5. Multiplication and distribution law: When two numbers are multiplied by the same number, you can multiply the two addends by this number respectively, and then add the two products, and the result remains unchanged. Such as: (2+4) × 5 = 2× 5+4× 5.
6. Nature of division: In division, the dividend and divisor are expanded (or reduced) by the same multiple at the same time, and the quotient remains unchanged. Divide 0 by any number other than 0 to get 0.
7. Equation: An equation in which the value on the left of the equal sign equals the value on the right of the equal sign is called an equation. Basic properties of the equation: When both sides of the equation are multiplied (or divided) by the same number at the same time, the equation is still valid.
8. Equations: Equations with unknowns are called equations.
9. One-dimensional linear equation: An equation with an unknown number of 1 is called a one-dimensional linear equation.
Example method and calculation of learning linear equation of one variable. That is, an example is given to illustrate that the formula is replaced by χ and calculated.
10. Score: divide the unit "1" into several parts on average, and the number representing such a part or points is called a score.
1 1. Addition and subtraction of fractions: add and subtract fractions with denominator, only add and subtract numerators, and the denominator remains unchanged. Fractions of different denominators are added and subtracted, first divided, then added and subtracted.
12. Comparison of fraction size: Compared with the fraction of denominator, the numerator is large and the numerator is small. Compare the scores of different denominators, divide them first and then compare them; If the numerator is the same, the denominator is big and small.
13. Fractions are multiplied by integers, and the product of the multiplication of fractions and integers is a numerator, and the denominator remains unchanged.
14. Fractions are multiplied by fractions, the product of numerator multiplication is numerator, and the product of denominator multiplication is denominator.
15. Fraction divided by integer (except 0) equals fraction multiplied by the reciprocal of the integer.
16. True fraction: The fraction with numerator less than denominator is called true fraction.
17. False fraction: the fraction with numerator greater than denominator or numerator equal to denominator is called false fraction. False score is greater than or equal to 1.
18. With score: write the false score as an integer, and the true score is called with score.
19. The basic nature of the fraction: the numerator and denominator of the fraction are multiplied or divided by the same number at the same time (except 0), and the size of the fraction remains unchanged.
20. A number divided by a fraction is equal to the number multiplied by the reciprocal of the fraction.
2 1.A divided by b (except 0) equals the reciprocal of a multiplied by b.
Who has a new curriculum standard? People's education edition You can go to "Ebert Teacher Network" to have a look. The courseware I usually use is downloaded from this website
All the laws of calculation in primary school mathematics. Basic mathematical operations in primary schools
(1) Write down three digits for the addition of two digits.
1, aligned with the same number;
2. Starting from the unit;
3. When the number of digits reaches 10, enter 1 into ten digits.
(2) Do a two-digit subtraction with a pen, and remember three things.
1, aligned with the same number;
2. Reduce from one place;
3. If the number of digits is not enough, subtract 1 from the number of digits, add 10 to the number of digits and then subtract.
(3) Hybrid calculator algorithm
1, in the formula without brackets, only addition and subtraction or multiplication and division can be performed from left to right;
2. In the formula without brackets, if there are multiplication and division and addition and subtraction, the multiplication and division should be calculated first, and then the addition and subtraction should be calculated;
3. If there are brackets in the formula, count the brackets first.
(D) four-digit reading method
1, read in order from the high order, thousands, hundreds, and so on;
2. There is a zero or two zeros in the middle, and only one "zero" is read;
No matter how many zeros there are, don't read the last number.
(5) Four-digit writing
1, written in order from the high order;
2. Write a few words in thousands, a few words in hundreds, and so on. Write "0" in the middle or at the end.
(6) Four-digit subtraction should also pay attention to three items.
1, aligned with the same number;
2. Reduce from one place;
3. Which figure is not enough to reduce? Retract 1 from the previous position, add 10 to the standard position, and then subtract.
Multiplication, division, algorithm, algorithm. . .
New Curriculum Standard People's Education Edition Primary School Students' Sixth Grade Mathematics Volume II 1 1 How to Do It (1) This is a hollow steel pipe.
(2) The method is: use the volume of the outer cylinder-the volume of the inner cylinder = the volume of the hollow steel pipe.
(3) The formula is π× 5× 5× 80-π× 4× 4× 80.
= 80 π (25- 16) ... I use simple calculation here, so the calculation is faster!
= 720 π ....................... wants you to learn.
=2260.8 (cubic centimeter)
The new curriculum standard People's Education Edition sixth grade elementary school mathematics workbook 69 pages answer 0.89 0.9510.56 90651575178 343 0.4 2065 5.418106.910.
The new curriculum standard of People's Education Press is the first volume of mathematics teaching plan for the sixth grade primary school; There are various teaching plans for primary and secondary schools on Teacher Albert's website. Please go and have a look.
Graphic calculation formula of all enrollment rate of primary school mathematics in fifth grade by People's Education Press
1 square
Perimeter area side length
Perimeter = side length ×4
C=4a
Area = side length × side length
S=a×a
2 cubic meters
Volume a: edge length
Surface area = side length × side length ×6
S table =a×a×6
Volume = side length × side length × side length
V=a×a×a
3 rectangle
V: volume s: area a: length b: width h: height.
(1) Surface area (L× W+L× H+W× H) ×2
S=2(ab+ah+bh)
(2) Volume = length × width × height
V=abh
5 triangle
S area a bottom h height
Area = bottom × height ÷2
s=ah÷2
Height of triangle = area ×2÷ base.
Triangle base = area ×2÷ height
6 parallelogram
S area a bottom h height
Area = bottom × height
S = ah
7 trapezoid
Height of upper bottom b and lower bottom h in s area a
Area = (upper bottom+lower bottom) × height ÷2
s=(a+b)× h÷2
8 laps
Area c perimeter d= diameter r= radius
(1) circumference = diameter ×∏=2×∏× radius
C=∏d=2∏r
(2) area = radius × radius×∈
Cylinder 9
V: volume h: height s; Bottom area r: bottom radius c: bottom perimeter
(1) Transverse area = bottom circumference × height.
(2) Surface area = lateral area+bottom area ×2
(3) Volume = bottom area × height
(4) Volume = lateral area ÷2× radius.
10 cone
V: volume h: height s; Bottom area r: bottom radius
Volume = bottom area × height ÷3
Total number ÷ Total number of copies = average value
Formula of sum and difference problem
(sum+difference) ÷ 2 = large number
(sum and difference) ÷ 2 = decimal
And folding problems.
Sum \ (multiple-1) = decimal
Decimal × multiple = large number
(or sum-decimal = large number)
Difference problem
Difference ÷ (multiple-1) = decimal
Decimal × multiple = large number
(or decimal+difference = large number)
Tree planting problem
1 The problem of planting trees on unclosed lines can be divided into the following three situations:
(1) If trees are planted at both ends of the non-closed line, then:
Number of plants = number of nodes+1 = total length-1.
Total length = plant spacing × (number of plants-1)
Plant spacing = total length ÷ (number of plants-1)
2 If you want to plant trees at one end of the unclosed line and not at the other end, then:
Number of plants = number of segments = total length ÷ plant spacing
Total length = plant spacing × number of plants
Plant spacing = total length/number of plants
(3) If no trees are planted at both ends of the non-closed line, then:
Number of plants = number of nodes-1 = total length-1.
Total length = plant spacing × (number of plants+1)
Plant spacing = total length ÷ (number of plants+1)
The quantitative relationship of planting trees on the closed line is as follows
Number of plants = number of segments = total length ÷ plant spacing
The question of profit and loss
(Profit+Loss) ÷ Difference between two distributions = number of shares participating in distribution.
(Big profit-small profit) ÷ Difference between two distributions = number of shares participating in distribution.
(big loss-small loss) ÷ The difference between two distributions = the number of shares participating in the distribution.
encounter a problem
Meeting distance = speed × meeting time
Meeting time = meeting distance/speed and
Speed Sum = Meeting Distance/Meeting Time
Catch up with the problem
Catch-up distance = speed difference× catch-up time
Catch-up time = catch-up distance ÷ speed difference
Speed difference = catching distance ÷ catching time
Tap water problem
Downstream velocity = still water velocity+current velocity
Countercurrent velocity = still water velocity-current velocity
Still water velocity = (downstream velocity+countercurrent velocity) ÷2
Water velocity = (downstream velocity-countercurrent velocity) ÷2
Concentration problem
Solute weight+solvent weight = solution weight.
The weight of solute/solution × 100% = concentration.
Solution weight × concentration = solute weight
Solute weight-concentration = solution weight.
Profit and discount problem
Profit = selling price-cost
Profit rate = profit/cost × 100% = (selling price/cost-1) × 100%.
Up and down amount = principal × up and down percentage
Discount = actual selling price ÷ original selling price× 1 00% (discount <1)
Interest = principal × interest rate× time
After-tax interest = principal × interest rate × time × (1-20%)
enough
The new curriculum standard people's education edition elementary school mathematics oral arithmetic mental arithmetic quick calculation practices the sixth grade answer every day. Go back to the bookstore to buy the answer.
Where is the fifth grade math teaching plan in the new curriculum standard primary school? Thank you. They are available in all major bookstores. I suggest you go to Xinhua Bookstore! On the Internet, you can type in the "New Curriculum Standard People's Education Press Primary School Mathematics Volume II Teaching Plan" on Baidu. There must be something you think is suitable.