Resources by William Emeny

Column Addition

Column addition of whole numbers – Five examples of adding whole numbers using the column method. The examples progress in difficulty adding numbers with two and three digits. The third and fourth examples include the need to ‘carry one’ from one column to the next.

Column addition of decimal numbers –...

Column Subtraction

[b]Column subtraction of whole numbers[/b] – Six examples of subtracting whole numbers using the column method. The examples progress in difficulty subtracting numbers with two, three and four digits. The later examples include the need to ‘borrow one’ from one column to the next.

[b]Column subtraction...

Division

Short division – Six examples of dividing numbers using the short, or what is sometimes called the bus stop method. The examples progress in difficulty with the first two examples not requiring any remainders, the next two examples having remainders within the calculation and the last two examples having...

Factors, Multiples and Primes

Factors – Beginning with the definition of what a factor is this video proceeds to find the factors of 12 with the aid of a factor bug. The factor bug is a visually stimulating method of finding factors and suitable for use with younger students. After finding the factors of 18, the factors of 17 are found....

Fractions: Adding and Subtracting

Adding and subtracting fractions with the same denominator – This video begins by showing the common mistake of adding the numerator and adding the denominator and explaining why this cannot be correct. The correct method is used with a pictorial representation to aid understanding. The video continues with a...

Fractions: Mixed Numbers

Converting between mixed numbers and improper fractions – The explanation begins by showing the difference between a proper fraction, an improper fraction and a mixed number. Pictorial representations of the fractions are used to aid understanding of how a mixed...

Fractions: The Basics

What are fractions? The basics – This video covers the basics of fractions beginning with the definition of the numerator and the denominator. Simple examples are given to illustrate that fractions are a way of describing proportion. There follows an...