H5P Content Creation Plug-in (this link has a great tutorial on how to install the Plug-in). The H5P Plug-in was created for the Norwegian education organization NDLA (National Digital Learning Arena) and allows you to create MANY different types of learning activities (see below for a few or visit their site). You can upload them to an LMS (like Moodle or Canvas) or you can install the plug-in below to send your statements to an LRS.
To collect information on how learners are interacting with your activities, you also need to install the wp-h5p-xapi plug-in. This will let you set up your WordPress to send xAPI statements that your learners generate by interacting with your activities.
Both of these options are open source and free.