Dan found Showbie:

• Moderately improves attainment“students have a variety of means by which they can demonstrate their knowledge and skills”
• Significantly builds student knowledge“writing to learn; effective assessments; timely workflow”
• Significantly improves teaching efficiency and productivity“easy-to-assign writing prompts, class discussion, quizzes, exit tickets, etc.”
• Significantly reduces teacher workload“Showbie/socrative quizzes effectively shuffle questions and and answers, compute scores, and distribute scoring reports.”