Yes, this is a single part. The whole instruction is a single part. This is not an error. This is the part that we use to demonstrate a flip attachment. For consistency even though it is a single LEGO Education SPIKE Prime part, we show the part visually, we don't just mention it in the comments.
This is a power inventor switch mission model. The goal is to "switch" the power by moving the lever from one side to the other. This is a common mission for FIRST LEGO League competitions.
Containers mission models reworked from a LEGO Mindstorms EV3 version available at 778-containers-mission-models-fllcasts-off-season-challenge-2019 to a LEGO MINDSTORMS Robot Inventor version available in this material. In 3D building instructions for you to construct them.
This is a mission model for a drop mission. The mission model is build from LEGO MINDSTORMS Robot Inventor 51515 set. It is large, we know, but again, we wanted to use only parts from the 51515 set.
These are construction plates used as Mission Model for preparing for FIRST LEGO League competition off season. They are build with LEGO Mindstorms Robot Inventor set and following the idea of the same places with LEGO Education SPIKE Prime construction plates and LEGO Mindstorms EV3 construction plates