This document outlines steps for designing an e-activity to add to a mathematics project between schools in different countries. It discusses using online tools like Google, Geogebra, and Microsoft Excel to create interactive resources for teaching the six strands of mathematics: arithmetic, algebra, geometry, analysis, probability, and statistics. Students will work collaboratively online in teams to research and develop activities for each strand. They will blog about their findings and work. The final activities and project will be published on the schools' e-twinning platform.