https://mc3-demo.mit.edu/handcar/services/learning/objectivebanks/mc3-objectivebank%3A1%40MIT-OEIT/activities
https://mc3-demo.mit.edu/handcar/services/learning/objectivebanks/mc3-objectivebank%3A1%40MIT-OEIT/objectives/mc3-objective%3A235%40MIT-OEIT/activities
https://mc3-demo.mit.edu/handcar/services/learning/objectivebanks/mc3-objectivebank%3A1%40MIT-OEIT/activities/mc3-activity%3A222%40MIT-OEIT
https://mc3-demo.mit.edu/handcar/services/learning/activities/mc3-activity%3A222%40MIT-OEIT
http://mc3-demo.mit.edu/handcar/services/learning/objectivebanks/objectivebank%3A1%40MIT-OEIT/activities/bulk?id=activity%3A1%40MIT-OEIT&id=activity%3A2%40MIT-OEIT&id=activity%3A3%40MIT-OEIT
You don’t have to, the asset ids are stored as data fields on the Activity object!
https://mc3-demo.mit.edu/handcar/services/learning/objectivebanks/mc3-objectivebank%3A1%40MIT-OEIT/activities/mc3-activity%3A222%40MIT-OEIT/assets