How to write the training plan for the accuracy of mathematical calculation in the third grade of primary schoolThe following is a training plan for the accuracy of mathematical calculations in the third grade of primary school:
** 1. Consolidating basic computing knowledge **
1. ** Calculating Rules **
- Students were required to be familiar with the basic calculation rules of addition, multiplication, and division, especially the addition, multiplication, and multiplication formulas within 20. They had to be able to blurt them out.
- For example, in addition and substitution, the principle of digit alignment should be clarified; in multiplication and division, it should be understood that multiplication was a simple operation to sum the same addend, and division was the concept of average score.
2. ** Order of Operations **
- The students were asked to remember the order of the four mixed operations. The operations of the same level were calculated from left to right. If there were two levels of operations, the multiplication and division would be calculated first, followed by addition and substitution. If there were parenthesis, the parenthesis would be calculated first (the order of parenthesis-middle parenthesis).
- Through practice, the students would form a conditioned reflex. When they saw the question, they would first judge the order of the calculation before calculating.
3. ** Laws and Nature of Operations **
- Teaching students the laws of operations (such as addition, association, multiplication, association, distribution, etc.) and the nature of operations (such as the nature of substitution, division, etc.).
- Students were guided to learn how to use these laws and properties to perform simple calculations. For example, remembering the product of special numbers such as 25×4 = 100, 125×8 = 1000, etc., so that they could be used quickly in calculations.
** 2. Pay attention to the understanding of arithmetic **
1. In the process of teaching, students should not only memorize the calculation method mechanically, but also pay attention to the calculation theory.
- For example, in the teaching of decimals addition and substitution, the students had to understand that the principle of decimal point alignment was to align the same digits so that they could accurately align the digits during calculation.
- When teaching division, it was necessary to let students understand the process of average marks through examples, so as to understand the calculation theory of division.
** 3. Mental Arithmetic Training **
1. Mental arithmetic was the foundation of calculation, and there was a special time for mental arithmetic practice every day.
- The practice content could include addition and substitution within 100, two-digit multiplication by one-digit multiplication, and so on.
- The forms could be varied, such as oral answering, time-limited mental arithmetic practice, and so on.
2. Students are encouraged to use mental arithmetic in daily life, such as calculating change when shopping, to improve their proficiency in mental arithmetic.
** 4. Cultivate good calculation habits **
1. ** Carefully examine the questions **
- Teach the students to read the question carefully before calculating, to see the numbers, symbols, and requirements of the question clearly.
- Pay special attention to easily confusing numbers (such as 6 and 9) or operations (such as addition and multiplication).
2. ** Writing Rules **
- Students were required to write neatly and regularly, and the numbers were clear and distinguishable, so as to avoid calculation errors caused by scribbling.
- For example, in a vertical calculation, the digits had to be aligned and the horizontal lines had to be drawn straight.
3. ** Post-calculation check **
- To cultivate the students 'habit of checking after calculation, they could use methods such as re-calculation and estimation to check.
- For example, for addition calculations, they could be verified by deduction, and for multiplication calculations, they could be verified by division.
** 5. Diverse practice methods **
1. ** Single Practice **
- According to the students 'mastery of different types of calculations, they would carry out focused individual exercises.
- For example, if a student was weak in division, they would focus on the division questions.
2. ** Comparisons **
- He put the questions that were easy to mix up together and let the students distinguish and compare them.
- For example, the application of the law of multiplication and the law of multiplication, so that students can deepen their understanding and improve their ability to distinguish.
3. ** Regular testing and feedback **
- Regular calculation ability tests were conducted to understand the students 'learning progress.
- According to the test results, targeted coaching and intensive practice were carried out according to the types of mistakes made by the students.
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How to put the safety mat at the entranceIf a mat was placed outside the door, the font would usually face inward, which meant that the person who came in would see the font as positive. This mat could be used as a shoe pad for outsiders to wipe their soles before entering the door to prevent dirt from being brought into the room." Peace in and out " was a decorative congratulatory message, but also meant to welcome guests. If you put a safe mat inside the door, the words are generally facing outward. When you enter the door, the words are reversed. When you go out, the words are positive. Going home means that you are safe. When you go out, you can see the words to remind you to pay attention to safety. If a mat was placed inside and outside the door, the words outside the door should be placed inward, and the words inside the door should be placed outward, so that the words outside the door could remind people outside to pay attention to safety. In addition, if the guest or the host needs to change shoes when entering the door, the mat can be placed outside the door to prevent the shoes from bringing dust into the house. If the door does not need to change shoes, the mat can be placed inside the door to prevent the mat from being dirty outside and unable to rub off the dust on the soles.
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