Topic 3 Year 7 Mathematics 

Mathematics 
Topic  Factors and multiples 
No of lessons  8
When is it happening  Term 1 Year 7
What will students learn In this unit students are given the opportunity to explore the ‘structure’ of the natural numbers. Students will be introduced to factors, multiples and important sets of numbers such as prime numbers, square numbers and cube numbers. Once the fundamental concepts have been introduced students are given the opportunity to develop their understanding, conjecture, problem solve and generalise in a series of structured tasks
Key Knowledge that students should know at the end of 'Topic' This is the knowledge that students will meet for the first time in this topic 

Use factor pairs to find all factors of an integer

Recognise primes and square numbers

Investigate the structure of square numbers

Explore different ways of constructing square numbers

Developing a new representation to reveal the structure of positive integers

Using the “lot of” representation to find the factors of an integer

Using the “lot of” representation to express an integer as a product of two or more of its factors

Explore a geometric application of factors

Define the ‘common multiples’ of a set of integers.

Use Venn Diagrams to categorise multiples of two or more numbers.

Express the multiples of a number using algebra.

Explore patterns involving multiples in number grids

Identify the prime numbers in a 6-column number grid using a sieve algorithm.

Deduce that prime numbers greater than 3 can be written as 6n+1 or 6n-1.

 

This is knowledge that students may have met before but will need to deepen their understanding 

Using arrays to represent integers

Commutativity of multiplication

Using arrays to represent integers

Multiplying a two-digit number by a one digit number

Recognising square numbers

Finding factors of integers

Associativity of multiplication

Experience identifying factors of numbers

Draw and recognise regular polygons

Constructing multiplicative models

Experience with multiples as 'times tables'

Experience with times tables

Using algebraic notation to represent a variable integer

Identify prime numbers

Represent multiples as the product of integers

Using algebraic notation to represent a variable integer

 

Key Skills that students should be able to demonstrate at the end of 'Topic' This is the skills  that students will meet for the first time in this topic

Be able to list the factors of integers supported by appropriate representation Experience decomposing and organising numbers based on their factors

Be able list and organise common multiples for sets of integers

Experience representing and explaining patterns in common multiples

This is skills that students may have met before but will need to develop 

 Understand the multiplication times table

Understand the factor properties of integers, prime numbers and square numbers

Understand any set of integers as having a repeating pattern of common

multiples

Key vocabulary that students should know and understand

Factor, Multiple, Decomposition, Product

The Big Question 

 How many different polygons can I draw on dotted paper.

Explore what happens as you vary the number of dots.

 

 Key questions that students should be able to answer at the end of the 'Topic'

Do I understand what factors are and how to work them out? Can I work out all factors of  any given number.

Do I understand square numbers?
Am I able to write down a number as a product of its factors?

Am I able to write down all the common factors of 18 and 24.

If you can draw a regular hexagon in a ring, what other regular shape can you definitely draw?

Do I understand how to work out multiples ?

Can I write down the lowest common multiple of 2 numbers?

Do I understand what a prime number is? Can I write down all prime numbers less than 100.