Sending soccer balls

Sending soccer balls

Auto-markingPencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about calculating weight.
 
soccer-balls.png
A sports store wants to send 24 soccer balls to a school. The weight of four balls is 1.24 kg.
(1,000 grams = 1 kg)

Question 2Change answer

a)  How heavy is each ball in grams?  g

 
b)  How heavy is 30 balls in kilograms? kg

Question 2Change answer

New Zealand Post limits the weight of each parcel to 3 kg.
c)  What is the maximum number of balls in a parcel weighing 3 kg?

 
d)  What is the smallest number of parcels that will be needed for 24 balls?
Task administration: 
This task can be completed with pencil and paper or online (with auto-marking displayed to students).
Levels:
4, 5
Curriculum info: 
Maths, Geometry and Measurement, Measurement
Keywords: 
weight, conversion of units, decimals, multiplication
Description of task: 
Students calculate the weight for different numbers of soccer balls and calculate the weight for a given number of soccer balls.
Curriculum Links: 
This resource can help to identify students' understanding of making simple conversions between units for the Measurement objective, and multiplicative strategies for the Number strategies objective.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Measurement sense, sets 6-7
Measurement sense, sets 7-8
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
  

Y9 (05/1997)

Y10 (05/1997)
a) 310 (not .31 kg) difficult moderate
b) 9.3 (not 9300 g) moderate moderate
c) 9 balls difficult moderate
d) 3 parcels moderate moderate