School level

# Number Theory 5th & 6th Learning Path

By D McDaid

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

1

### Factor Challenge

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

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 Matamaitic

#### How it maps to the curriculum

5-6
Matamaitic

Strand: Uimhreas

Strand unit: Uimhirtheoiric

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: Acmhainn ar Líne
Language: Béarla
Rights: Gach ceart ar cosaint
Riachtanais Speisialta:

2

### Factors at Play

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

This lesson teaches factorisation and prime factorisation.

5-6 Matamaitic

#### How it maps to the curriculum

5-6
Matamaitic

Strand: Uimhreas

Strand unit: Uimhirtheoiric

Asset type: Acmhainn ar Líne
Language: Béarla
Rights: Gach ceart ar cosaint
Riachtanais Speisialta:

3

### 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 Matamaitic

#### How it maps to the curriculum

5-6
Matamaitic

Strand: Uimhreas

Strand unit: Uimhirtheoiric

Suggestions for use: none

Asset type: Acmhainn ar Líne
Language: Béarla
Rights: Gach ceart ar cosaint
Riachtanais Speisialta:

4

### Arrays: Explore Factors

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

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

5-6 Matamaitic

#### How it maps to the curriculum

5-6
Matamaitic

Strand: Uimhreas

Strand unit: Uimhirtheoiric

Content objective:
Ba chóir go ligfeadh acmhainn seo do pháiste:

• comhfhachtóirí agus coimhéadaithe a aithint
• fachtóirí agus iolruithe a aithint

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

Asset type: Acmhainn ar Líne
Language: Béarla
Collection: Foinse Phríomha
Rights: Creative Commons – Ceadúnas Aitreabúideachta-Comhroinne
Riachtanais Speisialta:

5

### Arrays: Factor Families

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

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 Matamaitic

#### How it maps to the curriculum

5-6
Matamaitic

Strand: Uimhreas

Strand unit: Uimhirtheoiric

Content objective:
Ba chóir go ligfeadh acmhainn seo do pháiste:

• comhfhachtóirí agus coimhéadaithe a aithint
• fachtóirí agus iolruithe a aithint
• slánuimhreacha a scríobh i bhfoirm easpónantúil

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

Asset type: Acmhainn ar Líne
Language: Béarla
Collection: Foinse Phríomha
Rights: Creative Commons – Ceadúnas Aitreabúideachta-Comhroinne
Riachtanais Speisialta:

Cuir acmhainn leis

# Registering for a Scoilnet Account – your first step to contributing and sharing

## What you need...

To register for a Scoilnet Account you will need to have a Teaching Council number and a roll number for your school in Ireland.