It is very important to learn the scientific counting method in the first stage, because it is a basic concept in mathematics and can help us better understand and deal with large numbers and decimals. In order to help junior one students remember the rules of scientific counting, we can use some simple and easy-to-remember formulas to help them remember.

The following is a common formula for scientific counting in grade one:

"Move ten places to the left, decimal places, move a thousand places to the left, and everything will be together."

This formula helps students to remember the rules and operation methods of scientific counting method through concise and clear expression.

First of all, "moving ten to the left" means that in the scientific counting method, when the numerical value changes from single digits to ten digits, the index increases by 1. For example, the scientific notation of 10 is 1 .0x10/,where the exponent is1.

Then, "decimal" means that when the value changes from single digits or ten digits to hundred digits, the index increases by 2. For example, the scientific notation for 100 is 1.0x 10 2, where the exponent is 2.

Then, "thousands move to the left again" means that when the value changes from hundreds to thousands, the index increases by 3. For example, the scientific notation for 1000 is 1.0x 10 3, where the exponent is 3.

Finally, "Everything is even" means that the index is flush with the decimal point when the value exceeds 1000 digits. For example, the scientific notation of 10000 is 1.0x 10 4, where the exponent is 4.

Through this formula, first-year students can easily remember the law of index increase and decrease in scientific counting method, and can quickly determine the size of the number and the change of index.

Of course, mastering the scientific counting method requires a lot of practice and practice, and the formula is only an auxiliary tool. In the process of learning, students also need to understand the principle and application scenarios of scientific counting, and how to convert ordinary numbers into scientific counting forms. By brushing questions, doing questions and consolidating basic concepts, students can better master and use scientific counting methods.