Students calculate the start time for a word problem by subtracting a time interval from the end time
A. Review telling time to five minutes
B. Tell time to the minute (Level 1)
C. Tell time to the minute (Level 2)
D. Identify the start and end times of a scenario
E. Calculate the time interval
F. Calculate time intervals using a timeline
G. Calculate time intervals, without a timeline
H. Rewrite time as hr and min
I. Calculate the end time using addition
J. Calculate the end time using column addition (Level 1)
K. Calculate the end time using column addition (Level 2)
L. Calculate the end time using column addition (Level 3)
M. Calculate the start time using subtraction
N. Calculate the start time using column subtraction (Level 1)
O. Calculate the start time using column subtraction (Level 2)
P. Find the time a certain number of minutes earlier than a given time
R. Calculate start time when the end time and time interval are known (Level 2)