Averages from Frequency Tables
The below QuickQuestion Interface © generates random frequency tables for which you must work out the average.
Choose the size of the first number in the table, and how many rows you want in the table.
For each of these make the minimum and maximum possible the same if you want a fixed amount.
Choose which averages you would like to have questions about. If you choose "All Together" the question will ask for all four bits of information at the same time.
Decide on what types of tables you would like, and if grouped give the allowable sizes of the groups.
Finally, if you would like a specific label for the data, type it in. If this is blank, a random one will be used.
You can then type in your answer or simply reveal the correct answer.
If you have All Together, separate each average with a semicolon ;
There is a 10QQI version of this activity which generates 10 random questions at a time.
Choose the size of the first number in the table, and how many rows you want in the table.
For each of these make the minimum and maximum possible the same if you want a fixed amount.
Choose which averages you would like to have questions about. If you choose "All Together" the question will ask for all four bits of information at the same time.
Decide on what types of tables you would like, and if grouped give the allowable sizes of the groups.
Finally, if you would like a specific label for the data, type it in. If this is blank, a random one will be used.
You can then type in your answer or simply reveal the correct answer.
If you have All Together, separate each average with a semicolon ;
There is a 10QQI version of this activity which generates 10 random questions at a time.
Ideas for Teachers
The QQI activities are a great way to get all students working. Put random questions on the board, and then get students to answer them on mini-whiteboards. Once all students have answered, and held up their solutions (with working), reveal the answer to see if they were right. Discuss any misconceptions from the working they have shown, or if they have all got it correct, move on to another question (changing the options to make if more difficult if necessary).
The QQI activities are a great way to get all students working. Put random questions on the board, and then get students to answer them on mini-whiteboards. Once all students have answered, and held up their solutions (with working), reveal the answer to see if they were right. Discuss any misconceptions from the working they have shown, or if they have all got it correct, move on to another question (changing the options to make if more difficult if necessary).
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