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The aircraft shown are all flying at the same speed and height.
The directions they are flying are shown as three figure bearings.
Is the situation safe or are any aircraft likely to collide?
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Topics: Starter  Angles  Bearings  Estimating
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Previous Day  This starter is for 25 May  Next Day
Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.
Teacher, do your students have
access to computers? 

Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to an exercise involving bearings.
Here is the URL which will take them to a game involving bearings.
Transum.org/go/?to=SnookerAngles
Casio Classwiz CalculatorThere is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a highresolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app). As well as basic spreadsheet mode and an equation solving feature you also get the ability to solve quadratic, cubic or quartic polynomial inequalities and the answer is given just as it should be written down, using the correct inequality symbols! This calculator has a highperformance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more... 
If your pupils' ability to estimate compass bearings is not good enough for this Starter you may want to instead begin with this. It's a whole class practice/learning activity that could be played as a game.