S3 Maths Scribe-post Blog

In todays lesson, we continued direct proporion
Example:
6 bags of bowling balls weigh 15 kg. How many bowling balls would weigh 35 kg?
We find out how much one bag weighs by a simple division: 6/15=0.4
We lay this out in a table: Weight (kg) [...]

In thursdays lesson we discussed direct proportion!!
Direct proportion is when you start off with the price or weight of the amount of some thing:
[...]

direct proportion is about having a equal proportion
For example:I sell some choclate. 5 pieces for a £1. so  by finding out how much a piece is by dividing 100 by five which equals 0.20p.If i sold 10 pieces it should be £2 pounds because I am selling double the amount of choclate.
www.bbc.co.uk/choosls/gcsebitesize/maths/algebrah/proportionrev2.shtml     
I choose Dan coll

btw i choose connor

what is a highest common factor (h.c.f )? Well a highest common factor is a number that goes into two sets of numbers a single number of times. Example - 8 and 12 the highest common factor would be 4 because it goes into them an exact number of times. Factorizing is when u [...]

hello !
In this leason we learnt about electricity bills and how to find out how much we would have to pay.
EXAMPLE:
Apr-04 Reading- 34436 units  - previous
Jul-04 Reading- 35231 - present
We found out that we had to take away the pervious from the present -
 35231 - 34436 = 795
The first 1100 units where 25 pence each [...]

Today we found out about highest Common Factors
 Example:
The factors of 12 are 1, 2, 3, 4, 6 and 12.
and the factors of 8 are 1, 2, 4, and 8 which means the common factors of 12 and 8 are 1, 2 and 4.
So the Highest Common Factor of 12 and 8 is 4.
because if you [...]

Todays lesson was all about Prime Numbers. The main aims were to

Find out all the prime numbers up to 100

and to….

Find out how to find all the prime factors upto 100

First of all we looked at a “Sieve of Eratosthenes” which ended up looking something along the lines of this;
The numbers that are in black [...]