Transum Maths Software

Estimating

There are 366 different Starters of The Day, many to choose from. You will find in the left column below some starters on the topic of Estimating. In the right column below are links to related online activities, videos and teacher resources.

A lesson starter does not have to be on the same topic as the main part of the lesson or the topic of the previous lesson. It is often very useful to revise or explore other concepts by using a starter based on a totally different area of Mathematics.

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Estimating Starters:

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.

 

Small images of these Starters | | |  Complete Index of Starters

Featured Activity

Lemon Law

Lemon Law

A fascinating digit changing challenge. Change the numbers on the apples so that the number on the lemon is the given total. Can you figure out, by understanding place value, how this works?

 

Curriculum for Estimating:

Year 5

Pupils should be taught to use rounding to check answers to calculations and determine, in the context of a problem, levels of accuracy more...

Year 6

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...

Feedback:

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.
Thanks for such a great resource!"

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:

"Dear Transum,

I love you website I use it every maths lesson I have with every year group! I don't know were I would turn to with out you!"

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.
Could we have some on angles too please?"

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."

Notes:

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.

A basic ability to estimate quantities without counting, like when choosing a checkout line at the supermarket, can be called a person’s innate ‘number sense’. Practising this kind of estimating may actually improve a pupil’s ability in other areas of mathematics. This is one of the findings of research published in Psychological Science, a journal of the Association for Psychological Science.

Practising estimation can be a lot of fun when presented as a game, challenge or group activity and provides the opportunity for the teacher to introduce variety in the mathematics classroom.

Estimating Activities:

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.

Estimating Videos:

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.

Estimating Worksheets/Printables:

Take Sides Questions: Thirty pairs of numbers or calculations. Which one of the pair is the largest?

Estimating External Links:

Links to other websites containing resources for Estimating are provided for those logged into 'Transum Mathematics'. Subscribing also opens up the opportunity for you to add your own links to this panel. You can sign up using one of the buttons below:

Search

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Recently Updated

Fractions by Wholes

Fractions by Wholes

An exercise on multiplying and dividing proper fractions and mixed numbers by whole numbers. So far this activity has been accessed 56 times and 5 people have earned a Transum Trophy for completing it.

 

Homepage

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