A fourth study of the impact of classroom assessment practices on students and their learning in the context of the classroom was undertaken by Bangert-Drowns, Kulik, and Kulik (1991), who investigated the effects of frequent classroom testing.
A hyphen (-) is a punctuation mark used to join the separate parts of a compound word. A hyphen is a joiner. A hyphen is used to join the words of a compound adjective (e.g., five-page document), to join the words of compound noun (e.g., cooking-oil), and to join a prefix to a word (e.g., re-examine).
A hyphen is usually very short ( it has its own Unicode character , but you can use the hyphen-minus instead because it looks the same ) , a minus is of the same width as the decimal digits ( and is sometimes a little bit higher than the others ) , an en-dash takes approximately the width of the letter â N â or â n â , and an em-dash takes ...