K-bands group words by frequency in the BNC/COCA lists. K1 contains the most frequent items; higher bands contain progressively less frequent items. Frequency can help you decide what to study, but it is not a difficulty score.
Turn on Teacher mode for vocabulary bands, readability, specifications, question checking, spreadsheet analysis and custom lists.
Highlighting is a prompt for closer reading, not a judgement about writing quality.
This tool helps students and teachers notice academic vocabulary, formulas and collocations in a text. Analysis happens in the browser; pasted text is not uploaded.
The academic vocabulary highlighting draws on Averil Coxhead's A New Academic Word List (2000). Formula highlighting draws on Simpson-Vlach and Ellis's An Academic Formulas List (2010). Collocation highlighting uses Ackermann and Chen's Developing the Academic Collocation List (2013) and automatically extracted patterns from OpenStax textbooks. OpenStax source text is used under a CC BY 4.0 licence.
Results are generated automatically and should be checked against the text and the cited source lists.
between [lo,hi]
lte
gte
sublists_lte
check_length.py
a) …
*
Answer: b