A box of counters

A box of counters

Auto-markingPencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about probability.
Sam has these 10 coloured counters in a box.
 
Colour Counters Total
Red
red-counter-small.png  red-counter-small.png
2
Green
green-counter-small.pnggreen-counter-small.pnggreen-counter-small.pnggreen-counter-small.pnggreen-counter-small.png
5
Blue
blue-counter-small.pngblue-counter-small.png
2
Yellow
yellow-counter-small.png
1
 
Sam closed his eyes and picked out a counter.

Question

a)  What is the chance that the counter is black?

    • Certain

    • Good chance

    • Even chance

    • Poor chance

    • Impossible

Question

b)  What is the chance that the counter is red, green, blue, or yellow?

    • Certain

    • Good chance

    • Even chance

    • Poor chance

    • Impossible

Question

c)  What is the chance that the counter is green or blue?

    • Certain

    • Good chance

    • Even chance

    • Poor chance

    • Impossible

Question

d)  What is the chance that the counter is red?

    • Certain

    • Good chance

    • Even chance

    • Poor chance

    • Impossible

Task administration: 
This task can be completed with pencil and paper or online (with auto marking displayed to students).
Level:
3
Curriculum info: 
Maths, Statistics, Probability
Keywords: 
probability, qualitative probability
Description of task: 
Students predict the likelihood of picking coloured counters out of a box.
Curriculum Links: 
This resource can be used to help to identify students' ability to select appropriate qualitative terms for different outcomes in Probability.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Interpreting statistical and chance situations, sets 3-4
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
 

Y6 (12/1998)
a) E easy
b) A moderate
c) B moderate
d) D difficult

 

For more information, click on the Probability concept map.