A lesson in school is a planned period of time for (1) __________. A lesson may be either one section of a textbook or a short period of time during which learners are taught how to perform an activity. Lessons are generally taught in a (3) __________ learning environment. Also, a lesson means a learner learning something he did not (4) __________ before. Such a lesson can be either planned or (5) __________. The slang phrase “to teach someone a lesson,” means to punish or scold a person for (6) ..

Here are the suggested words to fill in the blanks:

A lesson in school is a planned period of time for (1) **learning**. It involves one or more students being taught by a teacher. A lesson may be either one section of a textbook or a short period of time during which learners are taught about a (2) **subject**. Lessons are generally taught in a (3) **classroom** learning environment. Also, a lesson means a learner learning something he did not (4) **know** before. Such a lesson can be either planned or (5) **accidental**. The slang phrase “to teach someone a lesson,” means to punish or scold a person for (6) **again**.

Here’s the filled text:

A lesson in school is a planned period of time for **learning**. It involves one or more students being taught by a teacher. A lesson may be either one section of a textbook or a short period of time during which learners are taught about a **subject**. Lessons are generally taught in a **classroom** learning environment. Also, a lesson means a learner learning something he did not **know** before. Such a lesson can be either planned or **accidental**. The slang phrase “to teach someone a lesson,” means to punish or scold a person for **again**.