Spinach and lettuce

Spinach and lettuce

Pencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Working with Students
Further Resources
This task is about multiplication.

Question 1Change answer

2        3        4

5        6
                      
a)  Select numbers from above to make the sentences true. 
     i)     ×   = 10
     ii)    ×   = 30
     iii)   ×   = 15
     iv)   ×   = 24

Question 1Change answer

Spinach
b) Bruce had 2 rows of 7 spinach plants.
     How many spinach plants did he have altogether?

Question 1Change answer

              ​ lettuce
c) Sue had 6 rows of 9 lettuce plants.
     How many lettuce plants were there altogether?
Task administration: 
This task can be completed with pencil and paper or online (with SOME auto marking).
While the task is focusing on basic facts, students may use strategies to work out their answer. This can then help to identify students' ability to use strategies for multiplication tasks.
Levels:
2, 3
Curriculum info: 
Maths, Number and Algebra, Number Knowledge
Keywords: 
multiplication, basic facts, whole numbers
Description of task: 
This task requires students to exhibit multiplication basic facts, and answer story problems about vegetables that require multiplication.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Multiplicative thinking, sets 3-4
Multiplicative thinking, sets 4-5
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
  Y4 (11/2003)
a) i)
ii)
iii)
iv)		 2 × 5
5 × 6
3 × 5
4 × 6		 very easy
easy
very easy
easy
b)   14 easy
c)   54 moderate

NOTE: In a) the order of the numbers is irrelevant.

While the task is focusing on basic facts, students may use strategies to work out their answer. This can then help to identify students' ability to use strategies for multiplication tasks.

Diagnostic and formative information: 
  Student response Likely calculation Likely misconception
a)

 

i)
ii)
iv)
1, 10
3, 10 or 2, 15
3, 8 or 2, 12		   Uses numbers not in available selection, but the multiplication is correct.
a)  iv)

 
 3, 6   Sees 3 × 6 as 24.
a)
 

i)
ii)
b)
c)		  
5, 5
8, 7
9
15		 5 + 5
8 + 7
2 + 7
6 + 0		 Adds instead of multiplies.