Frog length

Frog length

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 reading information from a stem-and-leaf graph.

illustration: frog near a pond

Jake very gently collected some frogs from a pond.

Question 1Change answer

Jake carefully measured how long the forg were and then let them go. He put his results on to this stem-and-leaf graph.

Tens are on the left hand side and ones on the right hand side of the stem graph.

 

     Lengths of frogs (in millimetres)

 

 stem and leaf graph of the length of frogs

How long was ...
a) i) the smallest frog?  millimetres
    ii) the longest frog?  millimetres
 
b) How many frogs did Jake measure?
Task administration: 
This task is completed with pencil and paper or online with auto-marking.
Levels:
2, 3
Description of task: 
This task requires students to answer questions about a stem-and-leaf graph of the lengths of seventeen frogs.
Curriculum Links: 
This resource can be used to help to identify students' ability to interpret a stem-and-leaf graph.
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 (09/2000)

a)

i)
ii)

25
62

difficult
difficult

b)

17

moderate

Diagnostic and formative information: 
 

Common error

Likely reason

a) i)
   ii)

1
9

Smallest digit in the leaves.
Largest digit in the leaves.

a) i)
   ii)

2
133   447

Reads leaves as compact numerals.

b)

6
5

Number of stems.
Number of stems with associated leaves, i.e., excludes 1.