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I went to junior high school, anyway, I can only use calculators in junior high school in China! ~
When I was in elementary school, some classmates would be scolded by the teacher.!The teacher said that such a small person can use a calculator, and he can't do pen calculations, and he can't pass the exam! Depressed! ~
I don't think so.
I guess 4th grade can use a calculator, though!
It means 6 years).
I mean, I guessed! ``
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In developed countries such as the United States, Europe, and Canada, calculators are used from a young age, because they feel that what people should learn is not simple calculations, but how to use other tools to help people calculate, and people should not waste their energy on simple calculations, because calculators can help people solve the problem of simple calculations.
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I don't encourage it, I think that although the calculator can solve many calculation problems conveniently and quickly, sometimes pen arithmetic, especially mental arithmetic, is also inseparable in life, and you can't always carry a calculator with you everywhere, right? Moreover, pen arithmetic can cultivate the habit of carefulness, and elementary school is the best time to shape a person's good habits. Therefore, it is better to let primary school students do their own calculations honestly, and wait until high school and college to use calculators, because at that time, some calculations were really large, and it was a waste of time to use pen calculations!
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It should not be encouraged, calculation is to cultivate computing ability, a computational thinking, problem-solving thinking, if you use a habitual calculator, children will not be able to solve problems well, especially in junior high school, high school and even college problems, pen arithmetic can make people summarize the laws of calculation, cultivate a computational thinking.
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Upper middle grades. Upper middle grades refer to grades 3 to 6 of primary school.
The middle and upper grades are generally for the primary school stage. "Medium" refers to the third and fourth grades of primary school; "High" refers to the fifth and sixth grades of primary school. "Upper middle and upper grades" refers to grades 3 to 6 of elementary school.
The Student Calculator is a very powerful calculator specially designed for students, and the grip is especially suitable for middle and senior students.
The impact of using a calculator on flexibility is reasonable, simple, familiar and fast, which requires students to be flexible in calculation and quick in thinking, and the improvement of this ability requires students to observe and think about problems in multiple aspects, angles and directions when solving problems, and the calculator can quickly solve tedious operations, and students will actively use the calculator after they have it.
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x is equal to divide by 7 and the answer is solved by itself.
Ma Ji Zhao Yanhe said, the name seems to be called geographical map.
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