Using shape numbers

Using shape numbers

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Overview
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Further Resources
This task is about place value with a shape-based number system.

Question 1Change answer

On a planet called Ork they use these shapes to show their numbers.
 
 

OTH.png

planet-with-rings.jpg
 
OTH-example-pattern.png
Write down the number that each of these shapes show:
 
Task administration: 
This task can be completed with pencil and paper or online.
Level:
2
Keywords: 
Description of task: 
Students demonstrate their understanding of place value by identifying numbers shown in a shape-based number system.
Curriculum Links: 
This resource can help to identify students' understanding of combining whole numbers using place value.
Learning Progression Frameworks
This resource can provide evidence of learning associated with within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
   

Y4 (11/1998)

a) 7 very easy
b) 32 easy
c) 231 easy
d) 40 easy
e) 430 easy
f) 500 easy
g) 305 easy
Diagnostic and formative information: 
  Common error Likely reason
a)-g) 7, 5, 6, 4, 7, 5, 8 Number of objects with no place value.
d)
f)
4
5, 50
Ignores the trailing 0 in 40.
Ignores the trailing 0's in 500.
g) 35, 350 Does not correctly insert the place filler "0" in 305.