Following are the WAYS by which a Scrum Master can ensure that the three pillars of Scrum are being implemented by the team:

• Daily Scrum:
  Examine the Team Board and adjust the plan for the next DAY, making SURE that any changes are COMMUNICATED to the entire team.
  Examine the Impediments Board and, if necessary, adapt ways to address impediments.
• Sprint Planning:
  Examine the average Team Velocity for the preceding three or four SPRINTS, verify that the velocities were transparent to the team, and verify that the team adapted the Velocity to be used for Sprint planning.
  Examine the Product Backlog (PB) to ensure that it is current, transparent to all stakeholders and that the team adjusts the PBI estimations as needed.
• Sprint Retrospective:
  Examine the procedure that was followed and make preparations to adapt it if required, ensuring that any modifications are communicated to all team members.
• Sprint Review:
  Inspect the increment and, if necessary, adjust the Product Backlog, ensuring that any changes are communicated to all stakeholders.
  Examine the Release Plan and make any required adjustments, ensuring that any changes are communicated to all stakeholders.