Smartphones are now used at schools in Japan for teaching.
Certain Japan schools are using smartphone in class.
>Smartphones are now used at schools in Japan for teaching.
>Certain Japan schools are using smartphone in class.
*Both sentences clearly indicate that some schools in Japan are using smartphones at school for teaching.
Other sentences
a. Smartphone is the new way of teaching in Japan.
b. Schools in Japan are making use of smartphones to teach the children.
Smartphones are now used at schools in Japan for teaching.
Certain Japan schools are using smartphone in class.
どちらの文も日本の学校でスマートフォンを使って教えるという意味の表現です。
他にも以下の言い方をすることができます。
a. Smartphone is the new way of teaching in Japan.
b. Schools in Japan are making use of smartphones to teach the children.
Some schools in Japan use smartphones for teaching
Some schools in Japan teach with the smartphones
Some classes are being taught using smartphones, in Japan
Smartphones can also be used as a teaching tool. It is not so uncommon to see this is some subjects and classes. Some countries are more advanced than others. Japan is quite advanced technologically, so we can mention that smartphone use had been incorporated into classrooms as a teaching tool. Some teachers are using smartphones to explain the material. In some classes, the students can use their smartphones as a tool for learning. Some classes are already being taught using smartphones in Japan.
スマートフォンは授業の道具としても使われることがあります。一部の教科や授業では、これはそんなに珍しいことではありません。
国によって進んでいる所とそうでない所がありますね。日本は技術的にかなり進んでいます。ですから、授業にスマートフォンが取り入れられているわけです。
Some teachers are using smartphones to explain the material.（教材を説明するのにスマートフォンを使っている先生もいます）
In some classes, the students can use their smartphones as a tool for learning. （一部の授業では生徒は勉強道具としてスマートフォンを使うことができます）
Some classes are already being taught using smartphones in Japan.（日本では既に一部の授業でスマートフォンが使われています）
ポイント
Some〜 : 「〜もある」と訳せます。
例: Some people like him.
「彼を好きな人達もいる」
「何人かの人達は彼を好きです。」という訳はいまいちですね。
従って、
Some schools in Japan are using smartphones.
も、
「日本のいくつかの学校は〜」と訳すより、
「日本には（クラスで）スマートフォンを使う学校もある。」
と訳す方が自然ですね。
During class some schools use learning apps on students' smartphones
I've got a math's app for my lesson!
Technology is always advancing and these days there are many educational apps available for use both at home and in the school. Of ten the school provides computers or tablets for students' use, however, if the students have their own smartphones, it will enable them to save data and possibly use the same programme at any time on their own device.
"We are not allowed smartphones in our school."
"How very strange! We use them during the lessons."
Some schools in Japan use smartphone to facilitate better learning.
To facilitate something means to make an action or process easy or easier.
For example:
"Schools were located in the same campus to facilitate the sharing of resources".
To facilitateは、動作やプロセスを簡単にする、という意味です。
例
"Schools were located in the same campus to facilitate the sharing of resources".
日本 
南アフリカ 
アメリカ合衆国 
イギリス 
