Monday, December 5, 2011

Maths: equivalent fractions, and telling the time

We began by looking at equivalent fractions. That means parts of a whole one that are the same, but written in different ways. Look at the fraction wall above, with the green parts. One half is the same as five tenths. We can prove that they are the same even if we have no fraction wall to help us.

If there is no fraction wall, we have to remember that the top and the bottom of the fraction are multiplied by the same number. (Sometimes they are both divided by the same number.)

Here are more examples of how to do equivalent fractions without using a fraction wall.

Afterwards we moved on to telling the time. It is easy if you follow the steps. We saw that we could tell the time quite well if we had a clock with only an hour hand (red). The minute hand (blue) helps us tell the time more exactly by counting the minutes.

Read carefully through the examples above, and remember today's lesson. After that you should be able to tell the time quite easily. You can find a good clock website here to practise.


At home please do the maths problem sheet I gave you, and as much of the maths revision sheet as you can. If you cannot finish the revision sheet in the time you have, no problem. We will look at it together in class. More revision sheets will follow over the next few days.

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