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 # [Oppia](https://www.oppia.org) [![Full-stack tests](https://github.com/oppia/oppia/actions/workflows/full_stack_tests.yml/badge.svg)](https://github.com/oppia/oppia/actions/workflows/full_stack_tests.yml)
 
-Oppia is an online learning tool that enables anyone to easily create and share interactive activities (called 'explorations'). These activities simulate a one-on-one conversation with a tutor, enabling students to learn by doing while getting feedback.
+Oppia is an online learning tool that enables anyone to easily create and share interactivties (called 'explorations'). These activities simulate a one-on-one conversation with a tutor, enabling students to learn by doing while getting feedback.
 
 In addition to developing the Oppia platform, the team has developed free and effective [lessons](https://www.oppia.org/fractions) on basic mathematics, and we are planning to expand our educational offering to basic science and financial literacy. These lessons help learners who lack appropriate access to educational resources.