Exercise times

Exercise times

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Further Resources

This task is about adding time.

Question 1Change answer

Exercises Harry's Times Stephen's Times
Warm up 1 min 00 sec 1 min 05 sec
Stretches 1 min 15 sec 1 min 05 sec
Knee bends 45 sec 50 sec
Press-ups 55 sec 1 min 00 sec
Jumping 1 min 05 sec 1 min 08 sec
Skipping 1 min 30 sec 1 min 32 sec
Weight lifting 55 sec 1 min 20 sec
Jogging 2 min 35 sec 2 min 05 sec
Total Time ? ?
 
a)  What was the total time it took Hari to do the exercises?  minutes: seconds
 
b)  What was the total time it took Stephen to do the exercises?  minutes: seconds
Task administration: 
This task can be completed with pencil and paper or online (with auto marking displayed to students).
Level:
4
Curriculum info: 
Maths, Geometry and Measurement, Measurement
Keywords: 
time, addition
Description of task: 
Students add up the times for a number of exercises to get the total.
Curriculum Links: 
This resource can help to identify students' understanding of the measurement units of time and additive strategies.
 
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Additive thinking, sets 7-8
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
  Y8 (10/1997)
a) 10 minutes (600 seconds) difficult
b) 10 minutes 5 seconds (605 seconds) difficult
Diagnostic and formative information: 
  Common error Likely calculation Likely misconception
a) 8:40 6 min + 240 sec = 8:40 Adds seconds and interprets 240 sec = 2 min 40 sec.
a) 8:4 As above Codes 40 sec as 4 sec. Place value error.
a) 6:00 600 sec Interprets 600 sec as 6 min 0 sec.
b) 9:25 8 min + 125 sec Adds seconds and interprets 125 sec = 1 min 25 sec.
b) 6:05 605 sec Interprets 605 sec as 6 min 05 sec.