J-LEX

About J-LEX

With J-LEX, you can analyze the vocabulary of sentences and the frequency level of kanji. >>Use J-LEX

Creating teaching materials with controlled levels of vocabulary and grammar - for classes at the right level -
The Society for Teaching Japanese as a Foreign Language FY2015 Japanese Language Teacher Training
Slides and related materials

Example of function

• In order to write sentences at a fixed vocabulary / kanji level, you can quickly understand which word should be rewritten (red letter indication).
• If you change the difficult sentences on the window with easy-to-read sentences, set the level again and press the "Determine" button, you can immediately check how much more easy the sentence has become.
• You can freely set the vocabulary / kanji level for rewriting.
• It displays the percentage of text coverage up to the set level.
• Vocabulary / kanji frequency profile (indicating % composition of level of vocabulary / kanji (total number of words / total number of characters)) is displayed.

For the following people

• Japanese teachers who want to use raw vivid material in lessons but rewriting a little easier.
• Editor who wants to arrange the vocabulary / kanji level of the raw teaching material in order of increasing difficulty.
• Those working in governmental offices who would like to conduct administrative services using "friendly Japanese"
• Developers of Japanese graded readers
• Those who would like to judge the vocabulary / kanji level of their own / students' written material.
• Researchers of reading comprehension who wish to control the level of vocabulary / kanji for use in experiments.

>>Use J-LEX

Yasa-Nichi Checker Text Diagnosis Version

>>Yasa-Nichi Checker Text Diagnosis Version
Paste the sentences into the window and press the "Diagnosis" button.
We evaluate the difficulty of sentences from the five viewpoints of vocabulary, kanji, formality, length and grammar. It was made for the diagnosis of sentences for municipal publicity work, but other than for "grammar" it can be used for diagnosis of general sentences. ("grammar" is only for diagnosis of sentences of government offices.)

Project Leader: Kazunari Iwata
Members: Atsushi Mori, Tatsuhiko Matsushita (In charge of vocabularly)
Created with the support of Basic Research A (Assignment number 25244022, Research Representative: Iori Isao).

Reading fluency measurement tool

>>Reading fluency measurement tool
You can see how fast you can read Japanese.
It can be used by those who have finished elementary level.
Just by registering your email address, you can read various reading materials.
If you select, read and answer questions on your chosen reading, it will record the time taken and correct answer rate.
Since the previous record also remains, if you challenge many times you can see how your results have changed.

It can also be used to measure the effect of reading class (careful reading, extensive reading, speed reading etc).