# Secondary Catalogue

## Mathematics

### Triangulation

All research strategies, practices and methods have their limitations. The most common way of trying to offset these limitations is by using a technique called triangulation. This film uses real life research studies to illustrate the four key...Show More

### SSS Criterion

Constructing Triangles

When we construct a triangle given the length of all the three sides, we use the SSS criterion.

### Working with Ratios

Numeracy in Construction

Converting units and working out ratios is an integral skill for working in construction. This video explains the mathematical reasoning behind converting units of volume and scaling ratios and how it can be applied to calculate the correct...Show More

### Calculating Volume

Numeracy in Construction

An understanding of the volume of spaces is an essential skill for working in construction. This video explains the basic formula for volume and how it can be applied to easily calculate the amount of concrete needed for a house foundation by...Show More

### Multiplication

Numeracy in Construction

There are many applications for multiplication when working in construction. This video explains how multiplication skills can be used to calculate wall areas and the size of covering panels to work out how much material needs to be ordered for...Show More

### Estimating and Quotes

Numeracy in Construction

The ability to estimate material quantities and provide quotes is a helpful skill for working in construction. This video explains how to estimate the area and materials needed for a tiling job, incorporating unit conversions, and how to allow...Show More

### Calculating Perimeter

Numeracy in Construction

Calculating the perimeter of a block of land is a crucial skill for working in construction. This video explains the basic formula for perimeter and how it can be applied to calculate the length of fencing required for a construction site, as...Show More

### Calculating Area

Numeracy in Construction

Calculating the area of a construction space is an important skill for working on a building site. This video explains the basic formula for area and how it can be applied to easily calculate wall area, incorporating length conversions, and...Show More

### Floats and Balances

Numeracy in Retail

For all retail businesses balancing a cash float at the end of day, strong mathematical skills are crucial. This video explains how to count the cash in a register at the end of the day, including differentiating between different methods of sale...Show More

### Cash Handling

Numeracy in Retail

Although technology enables easy and quick cash handling in many retail environments, a sound understanding of simple mathematics remains a helpful skill for working in retail. This video explains how mental maths can be used to ensure that...Show More

### Surcharges

Numeracy in Retail

Credit and debit cards are so convenient, which means that an understanding of card surcharges is crucial for retail employees. This video explains how different card types may have different surcharges and how a comparison of the actual cost of...Show More

### Discounts

Numeracy in Retail

Understanding the mathematical processes behind discounts is a crucial skill for working in retail. This video explains how basic division and subtraction calculations can be used to complement calculator skills to work out new prices of sale...Show More

### Break Times

Numeracy in Retail

Every retail employee should understand how their shifts work and when their breaks are scheduled. This video explains how to use simple mathematics to calculate the length of shift times and when breaks should be taken in order to complete a...Show More

### Rostering

Numeracy in Hospitality

Staffing is an enormous expense to hospitality businesses. Smart scheduling and rostering are crucial skills for employees to develop. This video explains how to use mathematical calculations to work out whether rostered staff will be able to...Show More

### Stock Calculations

Numeracy in Retail

Calculating stock quantities is a critical skill in retail, as it helps to ensure minimal overspending. This video demonstrates the mathematical thinking used to work out how much marketing collateral is needed for a retail marketplace sale...Show More

### Food Safety and Time Calculations

Numeracy in Hospitality

Following food safety regulations surrounding potentially hazardous foods is an essential skill for working in hospitality. This video explains the mathematical calculations that can be used to work out when food needs to be checked for...Show More

Numeracy in Hospitality

To ensure a successful catering event, the dietary requirements must be included in the function brief. In addition to this, a little bit of mathematical thinking is required. This video demonstrates the thinking processes involved in calculating...Show More

### Seating Plans

Numeracy in Hospitality

Front of house staff in the hospitality industry are often tasked with organising tables and seating plans for functions and events. This video walks through the mathematical processes involved in assessing various seating configurations to find...Show More

### Portioning

Numeracy in Hospitality

Accuracy in estimating and calculating food quantities is a crucial skill for working in the kitchen. This video demonstrates how to calculate the number of portions available from a given jug capacity and volume of gravy. Clean, clear graphics...Show More

### Ratio

Numeracy in Hospitality

Working out how to dilute cleaning solutions can be confusing when the units of measurements aren’t all the same. Unit conversion for ratios is an integral skill used in other hospitality contexts, too, both front and back of house. This video...Show More

### Addition and Subtraction of Fractions

Professor Dave Explains Mathematics

We know about addition and subtraction, we know about fractions, so let's learn to add and subtract fractions! This is now possible because we know how to find the least common multiple of two numbers, which we will need to do to be able to get...Show More

Professor Dave Explains Mathematics

Alright, so we've decided to learn all of the maths, but where shall we start? Well, let's start at the beginning. The first kind of math we developed was simple arithmetic. We needed this at the dawn of civilisation to communicate very simple...Show More

### Algebraic Equations with Variables

Professor Dave Explains Mathematics

Now that we know the basics about solving algebraic equations, we will start looking at more and more difficult examples. But don't worry, just one step at a time! First, a few that are just a little more complicated than the easiest ones.

### Multiplication and Division of Small Numbers

Professor Dave Explains Mathematics

What came next after addition and subtraction? Why, multiplication and division, of course! Multiplication is kind of like addition, really. In fact, it's just repeated addition. Take a look at this early innovation in arithmetic, and the...Show More

### Understanding Fractions, Improper Fractions, and Mixed Numbers

Professor Dave Explains Mathematics

Once we know how to divide, we must learn about fractions, because not all divisions will lead to whole number quotients. But there are proper fractions, improper fractions, mixed numbers...what are all these things? Just check this out!