2.9.1

Elapsed time should be modeled and demonstrated using analog clocks and timelines.

demonstrating a given time to the hour and half-hour, using a model clock;

Practical situations are appropriate to develop a sense of the interval of time between events (e.g., club meetings occur every week on Monday; there is a week between meetings).

Tell time shown on an analog clock to the hour and half-hour. (a)

The student will investigate the passage of time and a) tell time to the hour and half-hour, using analog and digital clocks; and b) read and interpret a calendar.