Plickers lets you poll your class for free, without the need for student devices. Just give each student a card (a “paper clicker”), and use your Android smartphone or tablet to scan them to do instant checks-for-understanding, exit tickets, and impromptu polls. Best of all, your data is automatically saved, student-by-student, at plickers.com. Happy teaching! Plickers讓您輪詢類為免費，無需學生設備。只要給每個學生一張卡片（“紙唱首歌”），並使用您的Andr​​oid智能手機或平板電腦來掃描他們做即時的檢查作了解​​，退​​出門票，並即興調查。最棒的是，你的數據自動保存，學生按學生，在plickers.com。 快樂教學！