Temperature changes

Temperature changes

Auto-markingPencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Working with Students
Further Resources
This task is about temperatures.
nz-map-with-thermometer.png

During a week in January the temperatures in Oamaru were recorded.  Use the information given to work out the temperature.

Question 1Change answer

a)  The 7.00 a.m. temperature was 6.8°C. By 3.00 p.m. it had risen by 18.4°C.
     The 3.00 p.m. temperature was °C.

Question 1Change answer

b)  Next morning the 8.00 a.m. temperature was 9.7°C, and at 3.00 p.m. it was 27.4°C.
     By how much had the temperature risen? °C.

Question 1Change answer

c)  Another morning was warmer with a 7.00 a.m. temperature of 10.5°C, which at midday was 20.2°C.
     The temperature had risen by °C.

Question 1Change answer

d)  On Saturday the temperature rose 12.8°C between 7.00 a.m. and midday.
     If the 7.00 a.m. temperature was 8.7°C, the midday temperature was °C
Task administration: 
This task can be completed with pencil and paper or online (with auto-marking displayed to students).
Levels:
3, 4
Curriculum info: 
Maths, Number and Algebra, Number Strategies
Keywords: 
addition, subtraction, decimals
Description of task: 
Students use addition and subtraction to calculate temperatures over periods of time.
Curriculum Links: 
This resource can help to identify students' ability to apply additive or simple multiplicative ideas flexibly to combine or partition numbers to solve decimal addition and subtraction problems.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Additive thinking, sets 6-7
Additive thinking, sets 7-8
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
 

Y6 (06/1997)

Y7 (06/1997)
a) 25.2 difficult moderate
b) 17.7 difficult difficult
c) 9.7 difficult difficult
d) 21.5 difficult difficult
Diagnostic and formative information: 
   Common error Likely reason
a) 18.4 Read 'risen to 18.4°C' instead of 'risen by'.
a)
d)		 11.6
3.9		 Subtracting rather than adding.
b)
c)		 37.1
30.7		 Adding rather than subtracting.
c) 10.3 Subtraction error. Calculates 20.5 – 10.2. May have difficulty when renaming in subtraction.