Keeping bread fresh

Keeping bread fresh

Pencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Working with Students
Further Resources
This task is about reading information shown on graphs.
keeping-bread-fresh-chart.png
The graph above shows how many days it took for the mould to grow on some bread that was put in different places. Use the graph to answer the following questions.

Question 2Change answer

a)  How long did it take for the bread to grow mould when in the ...
bread bin?  days 

fridge?  days

cupboard?  days

hot water cupboard? days

Question

b)  In which place did the mould grow the quickest?
 

    • Bread bin

    • Cupboard

    • Fridge

    • Hot water cupboard

Question 2Change answer

c)  Why has the fridge kept the bread the best?
Task administration: 
This task can be completed with pencil and paper or online.
Level:
2
Curriculum info: 
Science, Communicating in science, Living World, Material World
Keywords: 
changes, food preservation, moulds, graphs, graph interpretation
Description of task: 
Students are given a graph that shows how many days it took for bread placed in different areas to grow mould. Students use this graph to answer three short questions.
Curriculum Links: 
Science capabilities
The capabilities focus is brought about by the conversations you have and the questions you ask.
 
Capability: Interpret representations
Science capabilities: 
Interpret representations
Answers/responses: 

 

Y4 (10/2002)
a)

6
5
9
4

All correct - very easy

2 correct - very easy
b) The hot water cupboard. moderate
c)
The answer mentions keeping food cold.
This preserves (keeps) the food for longer/stops it going off/smelling/rotting/ keeps it fresh.
 moderate
very difficult
Teaching and learning: 
Diagnostic and formative information: 
 

Common responses

b)

Of the wrong responses 79% answered "Fridge".
Of the wrong responses 8% answered "Bread bin".

c)

Percentage of total responses:
Correct: Cold – 48%
Reasons given:
Fresh – 14%
No mould growth – 7%
Incorrect: Reading straight from graph (e.g., Fastest growth/most days/biggest number) – 11%