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

Great Expectation

Great Expectation

An interactive online activity requiring logical thinking and a certain amount of luck. Numbers 1 to 6 are presented randomly and are to be used to produce two 2-digit numbers. Can you ensure that the first number is greater than the second?

 

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 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 21 October 'Starter of the Day' page by Mr Trainor And His P7 Class(All Girls), Mercy Primary School, Belfast:

"My Primary 7 class in Mercy Primary school, Belfast, look forward to your mental maths starters every morning. The variety of material is interesting and exciting and always engages the teacher and pupils. Keep them coming please."

Comment recorded on the 9 October 'Starter of the Day' page by Mr Jones, Wales:

"I think that having a starter of the day helps improve maths in general. My pupils say they love them!!!"

Comment recorded on the 14 October 'Starter of the Day' page by Inger Kisby, Herts and Essex High School:

"Just a quick note to say that we use a lot of your starters. It is lovely to have so many different ideas to start a lesson with. Thank you very much and keep up the good work."

Comment recorded on the 6 May 'Starter of the Day' page by Natalie, London:

"I am thankful for providing such wonderful starters. They are of immence help and the students enjoy them very much. These starters have saved my time and have made my lessons enjoyable."

Comment recorded on the 26 March 'Starter of the Day' page by Julie Reakes, The English College, Dubai:

"It's great to have a starter that's timed and focuses the attention of everyone fully. I told them in advance I would do 10 then record their percentages."

Comment recorded on the 14 September 'Starter of the Day' page by Trish Bailey, Kingstone School:

"This is a great memory aid which could be used for formulae or key facts etc - in any subject area. The PICTURE is such an aid to remembering where each number or group of numbers is - my pupils love it!
Thanks"

Comment recorded on the 2 April 'Starter of the Day' page by Mrs Wilshaw, Dunsten Collage,Essex:

"This website was brilliant. My class and I really enjoy doing the activites."

Comment recorded on the 3 October 'Starter of the Day' page by Mrs Johnstone, 7Je:

"I think this is a brilliant website as all the students enjoy doing the puzzles and it is a brilliant way to start a lesson."

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:

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Recently Updated

Venn Diagram

Venn Diagram

Place each of the numbers 1 to 16 on the correct regions on the Venn diagram. So far this activity has been accessed 11570 times and 842 people have earned a Transum Trophy for completing it.

 

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