Two funny things happened in school today. Well, lots of funny things, but two particularly funny things.
Firstly, period 2, support teaching Y10, a lesson on ratios. As a starter the teacher has pictures of giant apples and bananas on the board, and asks the class the ratio of apples to bananas. There are 6 apples and 2 bananas so some pupils correctly answer 6:2. The discussion moves on to simplifying ratios. In an attempt to help them understand, the teacher splits the fruit into two groups so that there are 3 apples and 1 banana in each group. However, the teacher does not really consider the layout of her new fruit groups. She stacks the 3 apples one on top of each other, and then puts the banana next to them. The banana is at an angle. Cue ridiculous guffawing from most of the class, and, I am ashamed to say, me too. The teacher isn't sure what is going on and so tells them to be quiet and then continues pointing at the giant ratio fruit, now resembling huge wide awake willies. Oh dear.
Secondly, I was marking Y7 practice papers for their exams next week. Yawn yawn, I hate exam papers, and can't believe I have to prep my Y7s for their end of year exams, how ridiculous, talk about narrowing the curriculum and teaching to the test. Anyway, question 10 is about sampling. Ali, Brian and Caro all ask people to taste two drinks and decide which they think is the supermarket cola and which is the more expensive cola. Ali surveys 20 people, Brian surveys 50 people, and Caro surveys 200 people. Part d is as follows, with sincere answer from one of my Y7s:
Ali, Brian and Caro all had different results. Whose result is likely to be the most reliable? Tick your answer.
Y7 ticks Ali.
Explain why you chose that answer.
because I wouldn't bother going round to ask 200 or 50 people about some coke! it would waste my energy. I think 20 people would save time.
Bear in mind we spent aaaages on surveys and sampling, and almost every other kid in the class got the question correct by choosing Caro and explaining that she surveyed the most people, and this kid's answer gets even more funny. Bless.
Here's an article on TF, perhaps with a vision some of us jaded TFers have forgotten....
And another one in the same issue of The Independent, which is all about TF but manages not to mention it by name at all, ingenious.
Firstly, period 2, support teaching Y10, a lesson on ratios. As a starter the teacher has pictures of giant apples and bananas on the board, and asks the class the ratio of apples to bananas. There are 6 apples and 2 bananas so some pupils correctly answer 6:2. The discussion moves on to simplifying ratios. In an attempt to help them understand, the teacher splits the fruit into two groups so that there are 3 apples and 1 banana in each group. However, the teacher does not really consider the layout of her new fruit groups. She stacks the 3 apples one on top of each other, and then puts the banana next to them. The banana is at an angle. Cue ridiculous guffawing from most of the class, and, I am ashamed to say, me too. The teacher isn't sure what is going on and so tells them to be quiet and then continues pointing at the giant ratio fruit, now resembling huge wide awake willies. Oh dear.
Secondly, I was marking Y7 practice papers for their exams next week. Yawn yawn, I hate exam papers, and can't believe I have to prep my Y7s for their end of year exams, how ridiculous, talk about narrowing the curriculum and teaching to the test. Anyway, question 10 is about sampling. Ali, Brian and Caro all ask people to taste two drinks and decide which they think is the supermarket cola and which is the more expensive cola. Ali surveys 20 people, Brian surveys 50 people, and Caro surveys 200 people. Part d is as follows, with sincere answer from one of my Y7s:
Ali, Brian and Caro all had different results. Whose result is likely to be the most reliable? Tick your answer.
Y7 ticks Ali.
Explain why you chose that answer.
because I wouldn't bother going round to ask 200 or 50 people about some coke! it would waste my energy. I think 20 people would save time.
Bear in mind we spent aaaages on surveys and sampling, and almost every other kid in the class got the question correct by choosing Caro and explaining that she surveyed the most people, and this kid's answer gets even more funny. Bless.
Here's an article on TF, perhaps with a vision some of us jaded TFers have forgotten....
And another one in the same issue of The Independent, which is all about TF but manages not to mention it by name at all, ingenious.
