價格：免費
檔案大小：1.1 MB
版本需求：需要 iOS 7.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
A simple app that allows students to provide multiple-choice feedback in a live classroom or conference setting using bright, visual "A-B-C-D" cards (with a "dont-know" option as well). This app is intended to replace or supplement the use of printed colored-paper cards which have been in use for several years.
This app helps support the work of the CAPER team (Center for Astronomy & Physics Education Research), caperteam.com.
支援平台：iPhone