algebra
 : Algebra, statistics and logic items
Level:Approach: Independent
Resources: None

Questions / instructions:

POPCORN
You and your friend are making popcorn for a class party. You need to work out how many spoons of corn you will need for 36 people.

Each person should get a bowl of popcorn.

  % responses
y4
y8

1. [Year 4 only] How many spoons of popcorn for 10 bowls?

5 spoons
50
 

2. [Year 8 only]You see a pattern in the table, but your friend does not. Tell your friend how many bowls of popcorn can be made with 6 spoons of corn. Explain how you know this from the pattern in the table.

correct answer and explanation
 
50
correct, vague explanation
 
21
other
 
29

3. Think about the pattern. If you have to make 36 bowls of popcorn, how many spoons of corn will you need?

18 spoons
12
61

4. Henry is older than Bill, and Bill is older than Peter. Then

a. Henry is older than Peter.

b. Henry is younger than Peter.

c. Henry is the same age as Peter.

d. There is not enough information given to tell which is true.

a
46
  

5. The chart below shows that one jug will hold 4 cups of juice and 2 jugs will hold 8 cups of juice.

Continue the pattern in both rows of the chart until you find the number of jugs needed to hold 46 cups of juice.

chart correct to 12 jugs
 
73
one error up to 12 jugs
 
5
6. How many jugs will you need for 46 cups of juice?
11 1/2 or 12
 
64
7. Explain how you got your answer
clear, concise explanation
 
  
on the right track, but less clear
 
 
other
 
 

Tree graph: Here is a picture of 5 trees. Letter A on the picture of the tree matches letter A in the graph.

Write the letters B,C,D,E on the trees to match the letters on the graph.

number of letters correctly placed: 4
3
2
1
0
 
17
0
14
7
62


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