Results

Video 1: How to add decimals
Video 2: Examples of adding decimals
Video 3: Common mistakes made when adding decimals

Video 1: An introduction to adding decimals 
Video 2: Adding decimals with ones and tenths parts
Video 3: Adding decimals (tenths)
Video 4: Adding decimals (hundredths)
Video 5: Adding decimals with ones, tenths and hundredths
Online activity: This activity poses four questions where you are required to add different forms of decimals

Part 1: Applications of decimals
Part 2: Examples showing how the application of decimals is used in everyday life
Part 3: Common misconception when applying decimals

The amount of effort saved when using machines is called mechanical advantage (MA). Simple machines use mechanical advantage as a key property to their functionality, helping humans perform tasks that would require more force than a person could produce. We will use the lever as an example of a simple machine to illustrate the concept of mechanical advantage.

Video 1: Explores the conversion of fractions to decimals: tenths, hundredths and thousandths
Video 2: Two examples of converting fractions to decimals

An introduction to the difference between distance traveled and displacement.

Using a one-dimensional number line to visualise and calculate distance and displacement.

Video 1: Dividing a decimal by a whole number with fraction models
Video 2: Dividing a decimal by a whole number on the number line
Video 3: Example of dividing a decimal by a whole number
Online activity 1: Dividing decimals by whole numbers
Video 4: Visually dividing a whole number by a decimal
Online activity 2: Dividing whole numbers by decimals

Managing time involves accurately predicting how much time it will take to do a task, and then setting aside that amount of time to complete it. Managing time is much more difficult than it may seem, which is why there are entire courses of study and research on the best approaches. But if you develop a method to undertake each component, you’ll be successful.

In this unit we will learn how these factors can affect the output of a simple machine. We will also learn about the difference between ideal mechanical advantage (IMA) and actual mechanical advantage (AMA), and how to apply your knowledge to calculate the efficiency of various simple machines.