# 1.9 - Time & Calendar

The student will

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

### BIG IDEAS

• So that I make it to resource on time (a)
• So that I get up in time for school (a)
• So that I know what resource I have today (b)
• So that I know what day it is today (b)
• So that I know what days are special events (i.e. my birthday) (b)

### UNDERSTANDING THE STANDARD

• Many experiences using clocks help students develop an understanding of the telling of time to the hour and half-hour, including:
• identifying the parts of an analog clock (minute and hour hands);
• demonstrating a given time to the hour and half-hour, using a model clock;
• writing digital time to the hour and half-hour;
• relating time on the hour and half-hour to daily routines and school schedules (e.g., bedtime, lunch time, recess time); and
• connecting the hour and half-hour to fraction concepts.
• 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).
• The calendar is a way to represent units of time (e.g., days, weeks, months).
• Using a calendar develops the concept of day as a 24-hour period rather than a period of time from sunrise to sunset.

### ESSENTIALS

The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to

• Identify different types of clocks (analog and digital) as instruments to measure time. (a)
• Tell time shown on an analog clock to the hour and half-hour. (a)
• Tell time shown on a digital clock to the hour and half-hour. (a)
• Match a written time (e.g., 1:00, 3:30, 11:00) to the time shown on a digital and analog clock to the hour and half-hour. (a)
• Read a calendar to locate a given day or date (e.g., What day of the week is the 10th?  What date is Saturday?). (b)
• Determine the day/date before and after a given day/date (e.g., Today is the 30th, so yesterday must have been the __?). (b)
• Given a calendar, determine the number of any day of the week (e.g., How many Fridays are in the month of October?) (b)

### KEY VOCABULARY

Updated: Aug 22, 2018