see the attached powerpoint

Today we had a pretty good day – we worked on algebra and “making x the subject of the equation.”

Disha, My and Pam asked good questions indicating that they are on task.  Lily is the only one who knew the answer to a question about noting that b does not equal zero.

Puneet got -1 because when I said “Forest Green” he said “foreskin” and spent the next 20 minutes giggling.  He’s a n00b.  He also pointed out my smartboard failures too many times.

A model of a pool has a scale of 1 : 200

(a)        the length of the model is 10cm, find the length of the pool.

(b)        The width of the pool is 8m, find the width of the model

(c)        The area of the model is 40 cm², find the area of the pool.

(d)        The pool has a constant depth. The volume of the pool is 320 m³. Find the depth of the model.

Ex 21 multiples of 3

Ex 22       odd numbers

Today we learnt how big a hectare was, how to convert scale factors into area factors, that 1m squared is 10 000 cm squared, what a scale factor is and what a area factor is, we also learnt about percentages, what an are is (10m x 10m)
Wow we learnt a lot today

--Lily

We learned that:
The last digits of a^n always form a pattern
There is no difference to a^n to the last digit pattern when you add multiples of 10. For instance, 3, the last digit pattern is 3,9, 7, 1 and the pattern for 13 is also 3,9,7,1. We predict that the pattern for 23 will be the same. So any power of integers that end in three will have the same pattern of last digits: 3,9,7,1.
For homework, either finish the investigation,or finish Exercise 14 numbers 12-19 or both or neither.
Have a nice weekend!

Integers (positive and negative) and rational numbers
e Pwned pi
Irrational numbers to remember
n formulae
Euler’s formulae
Standard form

Typed by Anmol Jhaveri 

Notes from Day E, 17 August
To Exercise 2, #10 (the four circles adding up square numbers), we have seen some nice solutions, including:

0, 1, 15, 49 (Rich)
0, 1, 80, 64 (Shraddha)
0, 1, 35, 289 (Gut)
-15, 16, 0, 64 (Rich)
0, 1, 16, 48 (Yashabh)

Today we have learned that:

1, 4, 9, 16, . . . Is the sequence of square numbers (:
We also know that
2, 3, 5, 7, 11, . . . are the prime numbers because the definition of a prime number is a number that has exactly 2 factors, namely 1 & itself. Is 529 a prime number? To find out we must check all the possible factors up to the square root of 529 which is approximately 23.

A rational number is a number that can be expressed as a fraction. It has either a finite or a repeating decimal expansion. For example, 3/8 = 0.375 and 4/9 = 0.44444…

So if we are asked to write down rational number between 4 and 6 we could write
5 or 5.5 or 4.7373260149.

Note: 4.7373260149= (47 373 260 149)/(10 000 000 000)

We are now working on Exercises 5, 6, and 7: even numbers.