Remember: Search a list one item at a time, in order. Stop when you find it.
Questions
1
Which one does not help search a list?
🔢check one box at a time, in order🧮count the boxes you opened🦘jump about the row at random
2
Which one helps search a list?
🛑stop as soon as you find it🦘jump about the row at random🔁open the same box twice
3
🧮Does it help to count the boxes you opened?
YesNo
4
Which one does not help search a list?
🤷say it is not there after the last box🔭keep looking after you find it☝️open each box only once
5
Which one does not help search a list?
🚪give up halfway along🧮count the boxes you opened🔢check one box at a time, in order
6
🔁Does it help to open the same box twice?
YesNo
7
Which one does not help search a list?
☝️open each box only once🤷say it is not there after the last box🙅say it is not there after one box
8
Which one helps search a list?
🙅say it is not there after one box🔢check one box at a time, in order🚪give up halfway along
9
Which one helps search a list?
🤷say it is not there after the last box🙅say it is not there after one box🚪give up halfway along
10
Which one helps search a list?
🦘jump about the row at random☝️open each box only once🙅say it is not there after one box
11
Which one does not help search a list?
🔢check one box at a time, in order🤷say it is not there after the last box🦘jump about the row at random
12
Which one does not help search a list?
🔢check one box at a time, in order🤷say it is not there after the last box🔭keep looking after you find it
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Answer key · Set B
Searching a list
1jump about the row at random
2stop as soon as you find it
3Yes
4keep looking after you find it
5give up halfway along
6No
7say it is not there after one box
8check one box at a time, in order
9say it is not there after the last box
10open each box only once
11jump about the row at random
12keep looking after you find it
Mark each answer, count the right ones and write the score on the sheet.