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Texbooks can be used for:

1. Self-study. In this case they have a healthy dosage of theoretical material and a bunch of exercises, which have answers.
2. Guided study, when the teacher explains theoretical material, shows how to solve exercises and then checks and grades homework and classwork. Some of these textbooks come in two flavors: for students and for teachers, in this case the teachers' version has answers and some additional guidance.
3. Calling up a student to a whiteboard to solve an exercise in front of the class. Then the class is asked whether the exercise was solved correctly, and a discussion ensues. If an answer is known there will be no discussion.
4. Search for older material. Most decent books build skills and knowledge step by step, so if you missed a step, you need to flip back several sections to find what you are missing. This implicity forces you to figure out what exactly you are searching for, an important skill by itself.

In most cases the exercises that have no answers be verified by the student himself: plug in the answer and verify that the equation holds true. If an exercise does not have a single best answer, which happens rarely in school math, then the student has to wait for the teacher to check and grade his homework. This waiting adds additional emotional twist, although most students don't care.

If you don't know how to solve something right away then you need the answer to guide you.

No, if you don't know how to solve something, then you need to work with the textbook, flip back several pages and see what has been explained there. Search engines condition students to sloppy thinking, sloppy phrasing, and do not require memorizing anything. Stay away from search engines, use your textbook.

Texbooks can be used for:

1. Self-study. In this case they have a healthy dosage of theoretical material and a bunch of exercises, which have answers.
2. Guided study, when the teacher explains theoretical material, shows how to solve exercises and then checks and grades homework and classwork. Some of these textbooks come in two flavors: for students and for teachers, in this case the teachers' version has answers and some additional guidance.
3. Calling up a student to a whiteboard to solve an exercise in front of the class. Then the class is asked whether the exercise was solved correctly, and a discussion ensues. If an answer is known there will be no discussion.
4. Tests. Split students into two or three or four groups and give each group an exercise that has no answer. Make sure that members of these groups are not able to talk to each other. Works best when the desks are arranged in rows.
5. Search for older material. Most decent books build skills and knowledge step by step, so if you missed a step, you need to flip back several sections to find what you are missing. This implicitly forces you to figure out what exactly you are searching for, an important skill by itself.

In most cases the exercises that have no answers can be verified by the student himself: plug in the answer and verify that the equation holds true. If an exercise does not have a single best answer, which happens rarely in school math, then the student has to wait for the teacher to check and grade his homework. This waiting adds additional emotional tension, although most students don't care.

If you don't know how to solve something right away then you need the answer to guide you.

No, if you don't know how to solve something, then you need to work with the textbook, flip back several pages and see what has been explained there. Search engines condition students to sloppy thinking, sloppy phrasing, and do not require memorizing anything. Stay away from search engines, use your textbook.

Many textbooks come in two flavors: for students and for teachers. The teacher version has answers and some additional guidance. These textbooks are designed to be used for in-school study, where the teacher explains theoretical material, shows how to solve exercises and then checks and grades homework and classwork.

The exercises that have no answers can in most cases be verified by the student himself: plug in the answer and verify that the equation holds true. If an exercise does not have a single best answer, which happens rarely in school math, then the student has to wait for the teacher to check and grade his homework. This waiting adds additional emotional twist, although most students don't care.

Also, exercises without answers can be used for calling up students to a whiteboard to solve an exercise in front of the class. Then the class is asked, whether the exercise was solved correctly, and a discussion can ensue. If an answer is known there will be no discussion.

Some textbooks can be used both for self-study and guided study, so they have some theoretical material, and some exercises have answers.

If you don't know how to solve something right away then you need the answer to guide you.

No, if you don't know how to solve something, then you need to have skills to work with the textbook, flip back several pages and see what is explained there. Most decent books build skills and knowledge step by step, so if you missed a step, you need to flip back several sections to find what you are missing. Sadly, in many schools they simply do not have textbooks, all they have is fill-in-the-blanks worksheets.

Google makes it even worse, conditioning students that whenever they have a problem they can type it into Google, and its text analyzer will be smart enough to parse the question and find an answer. Google allows sloppy thoughts, sloppy questions and does not require memorizing anything. Stay away from search engines, use your textbook.

Texbooks can be used for:

1. Self-study. In this case they have a healthy dosage of theoretical material and a bunch of exercises, which have answers.
2. Guided study, when the teacher explains theoretical material, shows how to solve exercises and then checks and grades homework and classwork. Some of these textbooks come in two flavors: for students and for teachers, in this case the teachers' version has answers and some additional guidance.
3. Calling up a student to a whiteboard to solve an exercise in front of the class. Then the class is asked whether the exercise was solved correctly, and a discussion ensues. If an answer is known there will be no discussion.
4. Search for older material. Most decent books build skills and knowledge step by step, so if you missed a step, you need to flip back several sections to find what you are missing. This implicity forces you to figure out what exactly you are searching for, an important skill by itself.

In most cases the exercises that have no answers be verified by the student himself: plug in the answer and verify that the equation holds true. If an exercise does not have a single best answer, which happens rarely in school math, then the student has to wait for the teacher to check and grade his homework. This waiting adds additional emotional twist, although most students don't care.

If you don't know how to solve something right away then you need the answer to guide you.

No, if you don't know how to solve something, then you need to work with the textbook, flip back several pages and see what has been explained there. Search engines condition students to sloppy thinking, sloppy phrasing, and do not require memorizing anything. Stay away from search engines, use your textbook.

Many textbooks come in two flavors: for students and for teachers. The teacher version has answers and some additional guidance. These textbooks are designed to be used for in-school study, where the teacher explains theoretical material, shows how to solve exercises and then checks and grades homework and classwork.

The exercises that have no answers can in most cases be verified by the student himself: plug in the answer and verify that the equation holds true. If an exercise does not have a single best answer, which happens rarely in school math, then the student has to wait for the teacher to check and grade his homework. This waiting adds additional emotional twist, although most students don't care.

Some textbooks can be used both for self-study and guided study, so they have some theoretical material, and some exercises have answers.

If you don't know how to solve something right away then you need the answer to guide you.

No, if you don't know how to solve something, then you need to have skills to work with the textbook, flip back several pages and see what is explained there. Most decent books build skills and knowledge step by step, so if you missed a step, you need to flip back several sections to find what you are missing. Sadly, in many schools they simply do not have textbooks, all they have is fill-in-the-blanks worksheets.

Google makes it even worse, conditioning students that whenever they have a problem they can type it into Google, and its text analyzer will be smart enough to parse the question and find an answer. Google allows sloppy thoughts, sloppy questions and does not require memorizing anything. Stay away from search engines, use your textbook.

Many textbooks come in two flavors: for students and for teachers. The teacher version has answers and some additional guidance. These textbooks are designed to be used for in-school study, where the teacher explains theoretical material, shows how to solve exercises and then checks and grades homework and classwork.

The exercises that have no answers can in most cases be verified by the student himself: plug in the answer and verify that the equation holds true. If an exercise does not have a single best answer, which happens rarely in school math, then the student has to wait for the teacher to check and grade his homework. This waiting adds additional emotional twist, although most students don't care.

Also, exercises without answers can be used for calling up students to a whiteboard to solve an exercise in front of the class. Then the class is asked, whether the exercise was solved correctly, and a discussion can ensue. If an answer is known there will be no discussion.

Some textbooks can be used both for self-study and guided study, so they have some theoretical material, and some exercises have answers.

If you don't know how to solve something right away then you need the answer to guide you.

No, if you don't know how to solve something, then you need to have skills to work with the textbook, flip back several pages and see what is explained there. Most decent books build skills and knowledge step by step, so if you missed a step, you need to flip back several sections to find what you are missing. Sadly, in many schools they simply do not have textbooks, all they have is fill-in-the-blanks worksheets.

Google makes it even worse, conditioning students that whenever they have a problem they can type it into Google, and its text analyzer will be smart enough to parse the question and find an answer. Google allows sloppy thoughts, sloppy questions and does not require memorizing anything. Stay away from search engines, use your textbook.