School level

# Number Theory 5th & 6th Learning Path

By D McDaid

Number Theory 5th & 6th
6 resources in this Learning Path

1

### Factor Challenge

http://illuminations.nctm.org/Lesson.aspx?id=2520 Added: 19 Nov 2011 Contributor: Scoilnet Resource type: Game

Interactive game which can be played against the computer or else as a two player game. On the right hand side is a link to a lesson plan for the game. The aim is to find as many factors of a chosen number, colour a numbered box thus making it your box. The player with the most boxes/factors wins. There is a clear instructions section for the game.

5-6 Mathematics

#### How it maps to the curriculum

5-6
Mathematics

Strand: Number

Strand unit: Number Theory

Suggestions for use: Teacher should demonstrate the game on the IWB first. The game is ideally suited to pair work, if the school has laptops or a computer room, this would be an ideal site to explore factors. Children could play against each other, with talk and discussion before and after each game. Tactics of the gameplay and a record of moves taken / scores achieved would further the learning potential.

Asset type: Online Resource
Language: English
Special Needs:

2

### Factors at Play

http://www.thirteen.org/edonline/af...hool/activities/math/factors.html#1 Added: 23 Jan 2006 Contributor: Scoilnet Resource type: Lesson Plan

This lesson teaches factorisation and prime factorisation.

5-6 Mathematics

#### How it maps to the curriculum

5-6
Mathematics

Strand: Number

Strand unit: Number Theory

Asset type: Online Resource
Language: English
Special Needs:

3

### Solve the Da Vinci Code

http://resources.teachnet.ie/jroberts/2006/ Added: 09 May 2007 Contributor: Scoilnet Resource type: Assessment

This site is aimed at the more able pupils in sixth class. It offers exciting challenges in the form of patterns and puzzles. This site will take a couple of lessons to complete.

5-6 Mathematics

#### How it maps to the curriculum

5-6
Mathematics

Strand: Number

Strand unit: Number Theory

Asset type: Online Resource
Language: English
Special Needs:

4

### Prime Number Video (Flash Required)

This 4:12 minute video explains what a prime number is. It does this by explaining factors and composite numbers.

5-6 Mathematics

#### How it maps to the curriculum

5-6
Mathematics

Strand: Number

Strand unit: Number Theory

Suggestions for use: none

Asset type: Online Resource
Language: English
Special Needs:

5

### Arrays: Explore Factors

http://www.scootle.edu.au/ec/viewing/L2060/index.html Added: 09 Aug 2014 Contributor: Louise Mullane Resource type: Demonstration

Explore how numbers can be broken up with factors. For example, the number 9 can be expressed as 9x1 or 3x3.

5-6 Mathematics

#### How it maps to the curriculum

5-6
Mathematics

Strand: Number

Strand unit: Number Theory

Content objective:
This resource should enable a child to:

• identify common factors and multiples
• identify factors and multiples

Suggestions for use: Use to demonstrate factors of numbers on Interactive Whiteboard in whole class setting

Asset type: Online Resource
Language: English
Collection: Primary Source
Special Needs:

6

### Arrays: Factor Families

http://www.scootle.edu.au/ec/viewing/L2059/index.html Added: 09 Aug 2014 Contributor: Louise Mullane Resource type: Demonstration

Make equal rows and columns to explore how numbers can be broken up into factors. For example, the number 24 can be expressed as 12x2 or 2x12, and therefore, it can be divided equally using its factors 12 and 2.

5-6 Mathematics

#### How it maps to the curriculum

5-6
Mathematics

Strand: Number

Strand unit: Number Theory

Content objective:
This resource should enable a child to:

• identify common factors and multiples
• identify factors and multiples
• write whole numbers in exponential form

Suggestions for use: Use as a whole class demonstration on Interactive Whiteboard for introducing factors

Asset type: Online Resource
Language: English
Collection: Primary Source
Special Needs:

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