2～3

2～3（1.Pre-learning, ほか2単元の配当時数）

https://w3id.org/jp-textbook/AC100000000777/Time025

Details

Duration(string): 2～3
Duration(label): 2～3（1.Pre-learning, ほか2単元の配当時数）
Duration: 2
Compiling Prospectus: 高等学校論理・表現I(チアーズ)2021年検定教科書編修趣意書
Mixed duration type: Combined
Duration type: Standard
Listing order: 25
Maxvalue: 3
Minvalue: 2
Type: http://schema.org/Duration

Referred resources

Referred to as 'Duration' from:: 1.Pre-learning; 2.Pre-practicing; 3,4,5 Questions and answers, Conversation, Writing, etc.