A more thorough explanation:

A standard instruction is a direction or guideline that a judge gives to a jury about the law of the case. It is also known as a jury instruction or charge. The purpose of a standard instruction is to help the jury understand the legal principles that apply to the case and to guide them in reaching a verdict.

For example, in a criminal trial, the judge may give a standard instruction to the jury that they must find the defendant guilty beyond a reasonable doubt in order to convict them. In a civil trial, the judge may give a standard instruction to the jury that they must decide the case based on a preponderance of the evidence.

Standard instructions are often used in conjunction with other types of instructions, such as:

• Additional instruction: A jury charge given in response to the jury's question about the evidence or some point of law.
• Mandatory instruction: An instruction requiring a jury to find for one party and against the other if the jury determines that a given set of facts exists.
• Special instruction: An instruction on some particular point or question involved in the case, usually in response to counsel's request for such an instruction.

Overall, standard instructions are an important part of the legal process because they help ensure that the jury understands the law and can make an informed decision based on the evidence presented in court.