Results

Part 1: Representation, comparison and ordering of integers on the number line
Part 2: Examples related to the representation and comparison of integers on the number line
Part 3: Common mistakes and misconceptions

Electric charge comes in two varieties, which we call positive and negative. Like charges repel each other, and unlike charges attract each other. Thus, two positive charges repel each other, as do two negative charges. A positive charge and a negative charge attract each other.

How do we know there are two types of electric charge? When various materials are rubbed together in controlled ways, certain combinations of materials always result in a net charge of one type on one material and a net charge of the opposite type on the other material. By convention, we call one type of charge positive and the other type negative.

In this lesson you will learn that:

• Static electricity is a build-up of charge in an object.
• The build-up pf charge is caused by insulating materials rub against each other.
• The motion of these charges causes small shocks, lightening and sparks.
• These charges can be detected. 
• Certain materials can be classified as insulators, and others as conductors.
• Capacitors are small devices in circuits which can store charge.
• Lightning rods are used to allow charges from strikes to travel safely and dissipate in the Earth

Part 1: Subtracting integers
Part 2: Examples of subtracting integers
Part 3: Common mistakes made when subtracting integers

Write and solve vertical addition problems with whole numbers.

Write and solve vertical division problems with whole numbers.

Write and solve vertical multiplication problems with whole numbers. 

Write and solve vertical subtraction problems with whole numbers.

Part 1: What whole numbers are and how to express them on the number line
Part 2: How to compare whole numbers and how to find the successor and predecessor
Part 3: Common misconceptions about whole numbers
 

What order do you put your brackets in when performing operations on whole numbers? BODMAS: Brackets of division, multiplication, addition and subtraction.