價格：免費
更新日期：2019-06-18
檔案大小：53 MB
目前版本：5
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Spelling derivatives can be challenging for students. When adding a suffix to a base word, you either double, drop or change from the base word or just stick on the suffix. Also, detecting the accent is equally important for spelling. This app will take you through the process of looking at words and deciding what to do in order to spell derivatives.
支援平台：iPhone, iPad