Friday, 13 July 2012

Percentages Bingo

I haven't been using the Fruit Machine site I posted about anywhere near enough with my classes lately.

But I'm going to use it today with Year 8, as a bingo activity for converting decimals and fractions to percentages.

I'm going to try this using 4x4 answer grids, in teams, and give team points for correct answers as well as a bumper bonus for getting a line first, but you can of course do it however you like, and doesn't need to exclusively be a bingo activity.

Here's the list of questions I've made. It covers all percentages from 1 to 100 and I've thrown in a few extra difficulties with square and prime numbers, and unit conversions too, just to make it a little more tricky.

You can cut the list down a bit if you want to make it into a shorter activity of course.

To use, just go to the Fruit Machine site and copy and paste in the list:
0.01
1/50
0.03
1/5squared
1/(27-7)
3/50
0.07
(1st prime number)/25
0.09
1/(mm in a cm)
0.11
(half of 6)/25
0.13
7/50
3/20
2squared/5squared
1 - 0.83
9/50
0.19
1/5
0.21
11/(5squared doubled)
0.23
6/25
1/4
13/(a tenth of 500)
0.27
(4th prime number)/25
0.29
3/10
0.31
2cubed/5squared
0.33
17/50
7/20
3squared/5squared
0.37
19/(cm in half a metre)
0.39
0.4
0.41
(half of 42)/(5x10)
0.43
11/25
9/(a quarter of 80)
23/50
0.47
(1/2) - (1/50)
0.49
1/2
0.51
(unlucky number)/25
0.53
27/50
11/20
14/25
0.57
29/50
0.59
(2nd prime)/(3rd prime)
0.61
31/50
0.63
4squared/5squared
13/20
33/50
1 - 0.33
17/25
0.69
0.7
0.71
(3x6)/(half of 50)
0.73
(7squared - 12)/50
3/4
19/25
0.77
1- (11/50)
0.79
4/5
0.81
(6squared + 5)/50
0.83
21/25
17/20
43/50
0.87
(double 11)/25
0.89
9/10
0.91
23/25
0.93
47/50
19/20
1 - (1/25)
0.97
49/50
0.99
1

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Please do make any suggestions for improvement, variations that could be made, and let me know of any errors in the resources, or sections that students find confusing.