# What's the relationship between workbooks and assignment check-ins?

<div data-elink-language-switch="1" id="bkmrk-%E4%B8%AD%E6%96%87" style="border:1px solid #d6d9de;border-radius:6px;padding:10px 12px;margin:0 0 18px 0;background:#f8fafc;font-size:14px;">[中文](/books/bcbe3/page/98f13)</div><span style="font-size:14px;"><span style="font-family:'Microsoft YaHei', '微软雅黑';white-space:pre-wrap;background-color:rgb(255,255,255);">The two are concepts of different natures and have no correlation.</span>  
<span style="font-family:'Microsoft YaHei', '微软雅黑';white-space:pre-wrap;background-color:rgb(255,255,255);">Workbooks are learning tools for teachers to assign homework after classes and test students' knowledge mastery; homework check-ins are check-in activities centered around 'homework'.</span></span>