Finer grained standards that are part of this one
The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to
The use of an analog clock facilitates the understanding of time relationships between minutes and hours and hours and days.
Students need to understand that there are sixty minutes in an hour when using analog and digital clocks.
Use of a demonstration clock with gears ensures that the positions of the hour hand and the minute hand are precise when time is read.
Elapsed time is the amount of time that has passed between two given times.
Elapsed time should be modeled and demonstrated using geared analog clocks and timelines.
Elapsed time can be found by counting on from the beginning time or counting back from the ending time.
The use of a calendar facilitates the understanding of time relationships between days and months, days and weeks, days and years, and months and years. Students need to know the relationship between periods of time (e.g., If there are 24 hours in one day, how many hours are in three days?).
The knowledge that a year has about 365 1/4 days will help students understand the necessity of adding a full day every fourth year, called a leap year.
Students need to understand that time has passed or will pass in equal increments (i.e., seconds, minutes, or hours).