Writing prompt: The weekend is coming. Classmates, what are you planning to do? Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay of about 60 words about your plans for the weekend.
Writing hints: be going to; do cleaning; visit grandparents; have a good time

Student essay:
Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.

Corrected essay:
The weekend is coming. On Saturday morning, I am going to do my homework. My mother will help me with my homework. After lunch, we are going to clean the room. The next day, we are going to visit my grandpa and grandma, and we will play in the park. It will be a great day.

Error analysis:
error_sentence: Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.
correct_sentence: The weekend is coming. On Saturday morning, I am going to do my homework.
error: Weekend will coming, In the saturday
correction: The weekend is coming. On Saturday
error_type: Verb Tense Error
error_severity: 5
error_description: ① Determiner Error: According to English grammar rules, the definite article 『The』 is usually required when referring to specific or known things or concepts; therefore, 〈Weekend〉 is changed to 『The weekend』 to clearly indicate a specific, known weekend; ② Case Error: According to English writing conventions, the first letter of the first word in a sentence and proper nouns should be capitalized; "weekend" is not a proper noun and is not at the beginning of the sentence, so it should not be capitalized, changing 〈Weekend〉 to 『weekend』; ③ Verb Tense Error: 〈will coming〉 violates the future tense structure; 『is coming』 should be used to conform to the present continuous tense expression, so 〈will〉 is changed to 『is』; ④ Punctuation Error: The original text contains two independent sentences which should be separated by a period, not a comma; therefore, it needs to be changed to 『The weekend is coming.』; ⑤ Preposition Error: According to English grammar rules, 『On』 should be used before specific dates instead of 〈In〉, and when expressing days of the week, the definite article 〈the〉 is usually not needed; therefore, 〈In the〉 is changed to 『On』; ⑥ Determiner Error: According to English time expressions and proper noun usage conventions, the English word for "Saturday", 『Saturday』, is a proper noun and does not require the definite article 〈the〉 before it; therefore, it needs to be deleted, changing 〈In the saturday〉 to 『On Saturday』; ⑦ Case Error: According to English writing conventions, the first letter of a proper noun needs to be capitalized; 〈saturday〉 is a proper noun meaning "Saturday," so 〈saturday〉 needs to be changed to 『Saturday』 to conform to the convention.
error_sentence: Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.
correct_sentence: On Saturday morning, I am going to do my homework. My mother will help me with my homework.
error: , my
correction: . My
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: 〈I am going to do my homework〉 and 〈my mother will help my homework〉 contain independent subject-verb structures and need to be separated into independent sentences using a period; therefore, 〈,〉 needs to be changed to 『.』 to conform to English writing conventions, and according to English writing conventions, the first letter of the word at the beginning of a sentence needs to be capitalized, so 〈my〉 needs to be changed to 『My』 to conform to the convention.
error_sentence: Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.
correct_sentence: My mother will help me with my homework.
correction: me with
error_type: Pronoun Error
error_severity: 3
error_description: ① Pronoun Error: According to the English fixed phrase 『help sb. with sth.』, the original sentence is missing the object pronoun 『me』; therefore, 『me』 is added after 〈help〉 to conform to grammatical rules; ② Preposition Error: According to the English fixed phrase 『help sb. with sth.』, the original sentence is missing the preposition 『with』; therefore, 『with』 is added before 〈my〉 to conform to grammatical rules.
error_sentence: Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.
correct_sentence: My mother will help me with my homework. After lunch, we are going to clean the room.
error: , after
correction: . After
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: 〈my mother will help my homework〉 and 〈after lunch, we are going to clean the room 〉 contain independent subject-verb structures and need to be separated into independent sentences using a period; therefore, 〈,〉 needs to be changed to 『.』 to conform to English writing conventions, and according to English writing conventions, the first letter of the word at the beginning of a sentence needs to be capitalized, so 〈after〉 needs to be changed to 『After』 to conform to the convention.
error_sentence: Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.
correct_sentence: After lunch, we are going to clean the room. The next day, we are going to visit my grandpa and grandma, and we will play in the park.
error: , the
correction: . The
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: 〈after lunch, we are going to clean the room〉 and 〈the next day, we will visiting my grandpa and grandma〉 contain independent subject-verb structures and need to be separated into independent sentences using a period; therefore, 〈,〉 needs to be changed to 『.』 to conform to English writing conventions, and according to English writing conventions, the first letter of the word at the beginning of a sentence needs to be capitalized, so 〈the〉 needs to be changed to 『The』 to conform to the convention.
error_sentence: Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.
correct_sentence: The next day, we are going to visit my grandpa and grandma, and we will play in the park.
error: will visiting
correction: are going to visit
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: 〈will visiting〉 violates the 『will + base form of verb』 rule, and according to the prompt's requirements, planned actions should use the 『be going to』 structure; therefore, 〈will visiting〉 is changed to 『are going to visit』 to conform to the future tense expression.
error_sentence: Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.
correct_sentence: The next day, we are going to visit my grandpa and grandma, and we will play in the park.
error: are playing
correction: will play
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: 〈are playing〉 is the present continuous tense; according to the prompt's requirements, the future tense 『will play』 should be used here, so 〈are playing〉 is changed to 『will play』 to maintain tense consistency.
error_sentence: Weekend will coming, In the saturday morning, I am going to do my homework, my mother will help my homework, after lunch, we are going to clean the room , the next day, we will visiting my grandpa and grandma, and we are playing in the park, it will be a great day.
correct_sentence: The next day, we are going to visit my grandpa and grandma, and we will play in the park. It will be a great day.
error: , it
correction: . It
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: 〈the next day, we will visiting my grandpa and grandma, and we are playing in the park〉 and 〈it will be a great day〉 contain independent subject-verb structures and need to be separated into independent sentences using a period; therefore, 〈,〉 needs to be changed to 『.』 to conform to English writing conventions, and according to English writing conventions, the first letter of the word at the beginning of a sentence needs to be capitalized, so 〈it〉 needs to be changed to 『It』 to conform to the convention.