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 the percentages of full circles and rectangles the 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.
Curriculum for Estimating:
Pupils should be taught to use rounding to check answers to calculations and determine, in the context of a problem, levels of accuracy more...
Pupils should be taught to use estimation to check answers to calculations and determine, in the context of a problem, an appropriate degree of accuracy. more...
Years 7 to 9
Pupils should be taught to use approximation through rounding to estimate answers and calculate possible resulting errors expressed using inequality notation a<x≤b more...
Comment recorded on the 1 August 'Starter of the Day' page by Peter Wright, St Joseph's College:
"Love using the Starter of the Day activities to get the students into Maths mode at the beginning of a lesson. Lots of interesting discussions and questions have arisen out of the activities.
Comment recorded on the 16 March 'Starter of the Day' page by Mrs A Milton, Ysgol Ardudwy:
"I have used your starters for 3 years now and would not have a lesson without one! Fantastic way to engage the pupils at the start of a lesson."
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"
Comment recorded on the 19 October 'Starter of the Day' page by E Pollard, Huddersfield:
"I used this with my bottom set in year 9. To engage them I used their name and favorite football team (or pop group) instead of the school name. For homework, I asked each student to find a definition for the key words they had been given (once they had fun trying to guess the answer) and they presented their findings to the rest of the class the following day. They felt really special because the key words came from their own personal information."
Comment recorded on the 17 June 'Starter of the Day' page by Mr Hall, Light Hall School, Solihull:
Comment recorded on the 2 May 'Starter of the Day' page by Angela Lowry, :
"I think these are great! So useful and handy, the children love them.
Comment recorded on the 9 April 'Starter of the Day' page by Jan, South Canterbury:
"Thank you for sharing such a great resource. I was about to try and get together a bank of starters but time is always required elsewhere, so thank you."
Comment recorded on the 28 May 'Starter of the Day' page by L Smith, Colwyn Bay:
"An absolutely brilliant resource. Only recently been discovered but is used daily with all my classes. It is particularly useful when things can be saved for further use. Thank you!"
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."
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.
Rough Answers: An exercise on rounding values in a calculation to find an approximate estimate of the answer.
Snooker Angles: An online game for one or two players requiring an ability to estimate angles.
Counting Crowds: 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?
Estimating External Links:
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