Online Rubric is a Google Spreadsheets Add-on that enables to you create rubrics, enter scores, and email scores to students all from one place. Online Rubric provides very clear instructions for each step of the processes of creating a roster sheet, creating a rubric, and emailing grades to students.
TimelineJS is an open-source tool that enables anyone to build visually,rich, interactive timelines. Beginners can create a timeline using nothing more than a Google spreadsheet. Experts can use their JSON skills to create custom installations, while keeping TimelineJS's core look and functionality.