You wrote the correct phrase, only to remember to write '...in THE first grade..'
I am in the first grade of elementary school.
You can also say your age because many countries have different types of schools and a different grading systems. For example in the UK, we don't normally use the word 'grade' but say 'year.'
A British student would say:
I am in year 3
I am in year 5.
We also have infant school, junior school and high school instead of elementary school and junior high school.
I hope that helps!
あなたの書いたフレーズも合っていますよ。 ... in THE first grade .. と、the を忘れないようにしましょう。
I am in the first grade of elementary school.
私は小学校の一年生です。
国が違うと[学校](https://eikaiwa.dmm.com/uknow/questions/48564/)の種類も違い、[学年](https://eikaiwa.dmm.com/uknow/questions/42350/)のシステムも違うので、年齢を言ってもいいですよ。例えばイギリスでは、 gradeという言葉は使わず、year と言うのが一般的です。
イギリスの生徒だったら、
I am in year 3.
I am in year 5.
という風に言います。
私たちはまたinfant school, junior school, high schoolがあります。 elementary school やjunior high schoolはありません。
参考になれば幸いです！
I am in first grade.
If you are speaking to someone from the US or someone who has attended an International school that follows the US school pattern they will understand what level of schooling you are in.
I am in elementary school, in the first grade.
Some schools will call elementary school grade school.
So by saying you are in elementary school and in the first grade, the person you are speaking to will know where you are at in school!
I am in first grade.
USやUSの学校体系のインターナショナルスクールであれば、どの[学年](https://eikaiwa.dmm.com/uknow/questions/42350/)かすぐわかってくれるでしょう。
I am in elementary school, in the first grade.
学校によってはelementary schoolと呼ぶところもあります。
こう言うことで、相手は学校のどのレベルにいるのかわかります。
You can say "I am in first grade." or "I am in the first grade of elementary school."
You could also tell the teacher how old you are.
"I am (Number) years old."
Elementary schools usually have 6 grades with pupils aged between 6 and 12.
So if you are in the first grade of elementary school you are 6years old.
"I am in first grade.（1年制です）" 又は "I am in the first grade of elementary school."
（小学校1年生です）と言えます。
先生に何歳かを言っても良いです。”私は○○歳です”
通常小学校には、6歳から12歳までの生徒がいて、6学年あります。
ですから1年生であれば、6歳ということになります。
In the UK, we enjoy using prepositions and articles. However in the US, people seem to take great delight in not using them. It is just an obvious difference. In the UK, we would say:
"I'm in THE first grade of elementary school."
In the UK we do not talk about 'grades' as we have an alternative system of 'years'. Similarly we do not use the words 'elementary school' much but prefer to say "Infant' or 'Junior school' or possibly 'Primary school.'
イギリスでは、前置詞や冠詞を使うのを楽しんでいます。しかし、アメリカの人々はそれらを使わないで楽しんでいるようです。これは明らかな違いです。イギリスでは、以下のように言います。
"I'm in THE first grade of elementary school."
（私は小学1年生です。）
イギリスでは、'years'というシステムがあるので、'grades'とは言いません。同様に、'elementary school'という単語はあまり使わずに、'Infant'、'Junior school'、'Primary school’のほうを使います。
"I am in the first grade of primary school."
"Primary school" is a synonym for elementary.
Saying more "primary school" is a common term used in South Africa.
Perhaps this will be helpful when speaking to a South African teacher.
Well done for a good sentence structure.
However remember we say "I am in my first grade of elementary school." instead of saying ""I am in first grade of elementary school."
良く出来ました。上手に文章を組み立てることが出来ましね。
しかし、"I am in first grade of elementary school."と言う代わりに"I am in my first grade of elementary school."と言う事を覚えておきましょう。
I'm a first-grader is the shortest way of saying this. If you are in the first grade, that makes you a first-grader.
In the UK, first grade is called Year 2, so you would say 'I'm in Year 2' rather than 'I'm in the first grade'.
1. I'm in the first grade of elementary school.
2. I'm in Grade 1 of elementary school.
「elementary school」は「小学校」に相当します。○○学年の事は日本で「grade」と言いますが「year」という言い方も通じます。「Grade 1」や「Year 1」の時は「the」は言いませんが「the 1st grade」、「the 1st year」の時に「the」が付きます。
3. I'm a first grader in elementary school.
「1st grader」は「一年生」に相当しますが、「I」の主語に「am a」を付けてください。ただし「1st yearer」は言えませんので「I'm a 1st year pupil」と言ってください。
「elementary school」を略しても子供を見れば小学生だとわかりやすいので、「I'm in the 1st grade」、「I'm a first grader」や「I'm in Grade 1」だけで言いことが多いでしょう。
参考になれば幸いです。
It is most common to hear I'm in first grade of elementary school but other names for this type of school for this age group is first year of primary or infant school.
yes, saying "I am in first grade of elementary school."is a great way to explain this. but if you wish to be more casual then you can also say "i am in first grade."
During a self introduction (usually in a English class) when describing yourself you can use these phrases, this refers to your age and grade in school.
example sentence: "My name is Jack and I am 10 years old, I am in the first grade of elementary school".
Elementary school can also be called 'preschool' or 'infant school', usually in the UK we refer to these two instead of 'Elementary'.
こんにちは。
I am in first grade.
私は一年生です。
I'm in the first grade of elementary school.
私は小学一年生です。
「小学校」は英語で elementary school / primary school と言います。
アメリカ英語では elementary school が一般的です。
対してイギリス等では primary school が使われることが多いです。
ぜひ参考にしてください。
イギリス 
アメリカ合衆国 
南アフリカ 
オーストラリア 
マレーシア 
ニュージーランド 
