Overall Percentage Change
The below QuickQuestion Interface © generates 10 random questions on finding the overall percentage change when two changes are performed one after the other.
Decide which type of percentages you want to work with (Non-Calculator are 1%, 5%, 10%, 20%, 25%, 50%, 75%).
The Type decides whether both changes will be increases, both decreases, a mixture of them, or choose Random to get a random choice each time.
Finally, you can make it a little less abstract by including a value in the question.
When typing answers, use + or - to indicate an increase or a decrease respectively and give numbers to 3 decimal places. Also, remember to include the % symbol. For example, to input a 25.6% increase you would type "+26.5%".
Decide which type of percentages you want to work with (Non-Calculator are 1%, 5%, 10%, 20%, 25%, 50%, 75%).
The Type decides whether both changes will be increases, both decreases, a mixture of them, or choose Random to get a random choice each time.
Finally, you can make it a little less abstract by including a value in the question.
When typing answers, use + or - to indicate an increase or a decrease respectively and give numbers to 3 decimal places. Also, remember to include the % symbol. For example, to input a 25.6% increase you would type "+26.5%".
Ideas for Teachers
This is a good alternative to the QQI activity, if you just want to put 10 questions on the board. Then you can get answers from students to enter in the boxes before checking them, and correcting as necessary.
However, the real power in this activity is when you get the students using it themselves. In a computer lesson, set them all going on the activity, and get them to repeat until they get every question correct.
Or you can set it as a homework, telling them the conditions to use (different conditions for different students to differentiate the homework). Then get them to do one or two sets, all correct, and to take a screen shot and either email it to you, or, even better, stick it in their books. Since the questions are random, every student will get a different set of questions, and the immediate feedback means they can go back and correct their work straight away.
This is a good alternative to the QQI activity, if you just want to put 10 questions on the board. Then you can get answers from students to enter in the boxes before checking them, and correcting as necessary.
However, the real power in this activity is when you get the students using it themselves. In a computer lesson, set them all going on the activity, and get them to repeat until they get every question correct.
Or you can set it as a homework, telling them the conditions to use (different conditions for different students to differentiate the homework). Then get them to do one or two sets, all correct, and to take a screen shot and either email it to you, or, even better, stick it in their books. Since the questions are random, every student will get a different set of questions, and the immediate feedback means they can go back and correct their work straight away.
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