One tool that many families own, across the globe, is a basic mobile phone. The use of low-cost basic mobile phones for educational purposes in humanitarian settings is critical where access to connectivity and higher cost devices is limited. The portability of mobile phones, combined with their communication features, offers multiple uses to support education in emergency (EiE). This report is the second of a two-part series that aims to provide practitioners with guidance and resources on, and lessons learned for, using mobile technology in EiE settings. The series draws from a review of the existing literature with feedback from and interviews with EiE practitioners. The first piece of this series -- "On Call: The Use of Mobile Phones for Learning in Emergencies" (ED624512) -- explores how basic mobile phones can be used to support EiE learning programmes and teacher training. It emphasizes key practices that education practitioners have adopted to improve the equity and safety of mobile phone-based programmes. The present report, the second in this series, instead provides guidance on planning and delivering learning assessments through mobile technology.