Math Unit #1 - Fractions, Decimals and Ratios

The first unit of the year is "Fractions, Decimals and Ratios". I actually learnt most of the things in this unit before so I actually take this unit as a review, and I am sure I got better in what we learn in this unit somehow. I was good in the whole unit and I know everything I learnt and is confident in it. In this unit, we learnt:

1. Fraction
2. Percentages
3. Ratios
4. Rate
5. Scale
6. Sector graph (pie chart) and histogram

• We reviewed how to make or form or estimate a percentage, decimal, ratio or fraction by looking at an object: Like how many percent is in colour, how full is a bottle, how much is the wall painted...

• We learnt how to convert percentages, decimals, and fractions, to each other.

• We leant how to calculate a number by "multiplying, dividing, adding, and subtracting" it with a decimal, fraction, percentage, ratio.

37%     18/39 3.6

• We learnt how to create a ratio and the different forms of ratio.

• We learnt how to convert a rate to different units, calculate and form a rate...

1 2/3 km/min=100km/h=100000m/h

• We leant how to make a scale or use a scale to calculate sizes, length...

1:100=1cm:1m

• We learnt use percentages to make a pie chart. We learnt how to make a histogram.