Transum Maths Software

LCM

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 LCM. 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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LCM Starters:

Christmas Bells: If all the bells ring together at noon, at what time will they next all ring together? This problem requires the use of LCM.

Dancing: Work out how many people were at the dance from the clues given.

Hotel Digital: A puzzle about the lifts in a hotel which serve floors based on the day of the week.

Name Again: Work out what the nth letter will be in a recurring pattern of letters in a person's name

 

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

Featured Activity

Where's Wallaby?

Where's Wallaby?

Find the hidden wallaby using the clues revealed at the chosen coordinates. Not only is this a fun way to practise using coordinates it is also a great introduction to Pythagoras' theorem and loci.

 

Curriculum for LCM:

Year 5

Pupils should be taught to identify multiples and factors, including finding all factor pairs of a number, and common factors of two numbers more...

Pupils should be taught to solve problems involving multiplication and division including using their knowledge of factors and multiples, squares and cubes more...

Year 6

Pupils should be taught to use common factors to simplify fractions; use common multiples to express fractions in the same denomination more...

Pupils should be taught to identify common factors, common multiples and prime numbers more...

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Notes:

LCM stands for lowest common multiple or least common multiple. The LCM of two (or more numbers) is the smallest number that both of the numbers divide into exactly. Being able to find the LCM is useful when trying to find a common denominator when adding two fractions together. The LCM also describes the points when two (or more) periodic repetitions coincide.

HCF stands for highest common factor which is also known as the greatest common factor. The HCF of two (or more) numbers is the largest number that divides into the two numbers exactly. Being able to find the HCF is useful in everyday organisational tasks and also when factorising algebraic expressions.

LCM Activities:

Factor Trees: Create factor trees to find the prime factors of the given numbers.

HCF and LCM: Practise finding the highest common factor (H.C.F), sometimes called the greatest common divisor, and the lowest common multiple (L.C.M) of two numbers.

LCM Videos:

HCF and LCM explained: This video from Mathsmaster.org shows very clearly the step by step method of finding the LCM and HCF of two numbers.

HCF and LCM explained part 2: This video from Mathsmaster.org shows very clearly the step by step method of finding the LCM and HCF of two numbers using Prime Factorisation.

LCM Worksheets/Printables:

Divided Age Worksheet: Additional questions for the 6th December Starter of the Day about the decimal part of quotients.

LCM External Links:

Links to other websites containing resources for LCM 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

Dump-A-Dice Race

Dump-A-Dice Race

An online board game for two players involving prime and square numbers and making choices. So far this activity has been accessed 13648 times and 343 people have earned a Transum Trophy for completing it.

 

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