Air Traffic Control: Work out which aircraft are in danger of colliding from their positions and direction of travel. An exercise in understanding bearings.
Angle Estimates: Estimate the sizes of each of the angles then add your estimates together.
Big Bieber: If the dimensions of an object double, its volume increases by a factor of eight.
Big Order: Estimate or calculate then put the large numbers in order of size.
Breathe Easily: How many breaths have you taken in your lifetime?
Calc-A-Hundred: A game for two players requiring a calculator and thinking skills.
Estimating: Estimate the lengths of four lines then add your answers together.
Estimating Percentages: Estimate what percentages of full circles the red sectors represent.
Hot Estimates: Estimate the number of chillies in the photograph.
Moon Lengths: Estimate the distances shown on this photograph of the moon's surface.
Peanuts and Buttons: Two questions involving estimating a quantity.
Pie Chart: An exercise in estimating what the sectors of a pie chart represent.
Positions Please: Stand at the point between the classroom walls to represent a given number.
Red Lines: Either estimate the lengths of the red lines or, if you know how, calculate how long they are.
Second Holiday: Estimate then work out the period of time equal to the given number of seconds.
Comment recorded on the 18 September 'Starter of the Day' page by Mrs. Peacock, Downe House School and Kennet School:
"My year 8's absolutely loved the "Separated Twins" starter. I set it as an optional piece of work for my year 11's over a weekend and one girl came up with 3 independant solutions."
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Comment recorded on the 19 November 'Starter of the Day' page by Lesley Sewell, Ysgol Aberconwy, Wales:
"A Maths colleague introduced me to your web site and I love to use it. The questions are so varied I can use them with all of my classes, I even let year 13 have a go at some of them. I like being able to access the whole month so I can use favourites with classes I see at different times of the week. Thanks."
Comment recorded on the 10 April 'Starter of the Day' page by Mike Sendrove, Salt Grammar School, UK.:
"A really useful set of resources - thanks. Is the collection available on CD? Are solutions available?"
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Comment recorded on the 11 January 'Starter of the Day' page by S Johnson, The King John School:
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Comment recorded on the 24 May 'Starter of the Day' page by Ruth Seward, Hagley Park Sports College:
"Find the starters wonderful; students enjoy them and often want to use the idea generated by the starter in other parts of the lesson. Keep up the good work"
The ability to estimate values is an often overlooked part of Mathematics. Estimating lengths, weights, time, angles and solutions to problems should be practised regularly. Pupils should make sensible estimates of a range of measures in relation to everyday situations.
Estimating: Estimation is a very important skill. Use this activity to practise and improve your skills.
Estimating Angles: Estimate the size of the given acute angles in degrees.
Estimating Percentages: Estimate the percentages represented by the diagrams.
Estimation Golf: Play a round of golf using your estimation skills rather than golf clubs.
Snooker Angles: An online game for one or two players requiring an ability to estimate angles.
Counting Crowds: When measuring very large data sets, like the crowd of 1.8 million who attended Obama's inauguration, often exact counting is impossible! Find out how statisticians use density samples to estimate their statistics.
Estimate Enormous Numbers: Learn how to use the powers of 10 to make amazingly fast estimations of big numbers with this animated explanation.
Take Sides Questions: Thirty pairs of numbers or calculations. Which one of the pair is the largest?
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