2D Shapes and properties: Maths

Polygon: What is polygon(Find the answers examples)-Google

A plain figure with at least three straight sides and angles.

Complete the table below: you must cut and paste the correct

image and definition for each shape. Use the internet to help if

you get stuck.

Triangles 3 sides The interior angles add to 180 o	Quadrilaterals 4 sides The interior angles add to 360 o	Other sided Polygons
Right angled triangle   It could be classified as a special kind of rhombus with all four interior angles equal to 90 o or it could also be classified  OR it could be classified as a special kind of rectangle with all four sides equal in length. Both pairs of opposite sides are parallel. All sides are equal in length. All interior angles equal 90 o Lines of symmetry: 4 Order of rotational symmetry: 4 The diagonals bisect each other at 90 o and are equal in length The diagonals bisect both pairs of opposite angles both pairs of interior opposite angles	Square   It is a special kind of parallelogram with all four sides of equal length. Both pairs of opposite sides are parallel. Both pairs of opposite sides are equal in length. Both pairs of opposite angles are equal. All sides are equal in length. Lines of symmetry: 2 Order of rotational symmetry: 2 The diagonals bisect each other at 90 o The diagonals bisect both pairs of opposite angles.	Pentagon 5 sided polygon Regular polygon 5 equal sides 5 equal interior angles where each angles is 108 o Lines of symmetry: 5 Order of rotational symmetry: 5
Isosceles triangle It is a quadrilateral with two pairs of adjacent sides equal and one interior angle that is more than 180 o One interior reflex angle Two pairs adjacent sides of equal length Lines of symmetry: 1 Order of rotational symmetry: 0	Rectangle   It could be classified as a special kind of parallelogram that has all four angles equal to 90 o. Both pairs of opposite sides are parallel. Both pairs of opposite sides are of equal length. Both pairs of opposite angles are equal. All interior angles are equal to 90 o Lines of symmetry: 2 Order of rotational symmetry: 2 Diagonals are equal in length. Both diagonals bisect each other.	Hexagon 6 sided polygon Regular polygon 6 equal sides 6 equal interior angles where each angles is 120 o Lines of symmetry: 6 Order of rotational symmetry: 6
Equilateral triangle   A triangle that has three equal sides The angles all equal to 60 o There are 3 lines of symmetry The order of rotational symmetry is 3.	Parallelogram   It is a quadrilateral with both pairs of opposite sides parallel. Both pairs of opposite sides are parallel. Both pairs of opposite sides are equal in length. Both pairs of opposite angles are equal. Lines of symmetry: 0 Order of rotational symmetry: 2 Both diagonals bisect each other.	Heptagon 7 sided polygon Regular polygon 7 equal sides 7 equal interior angles where each angles is 128.6 o Lines of symmetry: 7 Order of rotational symmetry: 7
Isosceles Trapezium  It is a special kind of trapezium with one opposite pair of sides that are equal in length Only one pair of parallel lines (bases) The non-parallel, opposite sides are the same length The angles on either side of the bases are the same size The diagonals the same length Lines of symmetry: 1 Order of rotational symmetry: 0	Rhombus   A rhombus is a parallelogram that has all equal sides The opposite sides are parallel and the opposite angles are equal. It is known as a parallel shape or in others words, an equilateral quadrilateral.	Octagon 8 sided polygon Regular polygon 8 equal sides 8 equal interior angles where each angles is 128.6 o Lines of symmetry: 8 Order of rotational symmetry: 8
Trapezium   A trapezium is a quadrilateral with one pair of sides that are parallel. It is a shape with unequal sides as for the base and top.	Arrowhead   A quadrilateral where one interior angle is more than 180o The two sides are equal leading to a point at the centre and top of the shape. There are also two lines that go inside the shape which are also equal, making it looking like an arrow.	Decagon   10 sided polygon Regular polygon 10 equal sides 10 equal interior angles where each angles is 144o Lines of symmetry: 10 Order of rotational symmetry: 10
	Kite A kite is a quadrilateral It is a shape where a group of two sides that are adjacent to each other have the same equal.	Nonagon 9 sided polygon Regular polygon 9 equal sides 9 equal interior angles where each angles is 140 o Lines of symmetry: 9 Order of rotational symmetry: 9

Chicken soup with Vegetables: Food Tech

Today in Cooking Class my partners and I made chicken soup
with vegetables. The ingredients included chicken, onion, carrots,
mushroom, cabbage and vermicelli. First, we sliced and diced the
chicken and onions and threw it into the pot to boil it with 2 cups
of water. We then diced the carrots, mushroom and onions and
added it to the pot. After a couple of minutes we threw in the
vermicelli and waited for more than 20 - 25 minutes to finish. When it's
ready, the potato would be broken down and the water would be thick.
The photo is a picture of our making.

Marine Reserve: Action Project

During our trip to Goat Island there were many differences I noticed

between my local marine area and goat island. Point England waters

were filled with rubbish including its own surrounding areas. The water

wasn’t so clear for our eyes to see through and not many living organisms

decided to make point England there home. Where as for goat island, there

were many snappers, kina’s and the water was as clean as the paint work

on a Mercedes Benz. Comparing these two marine areas together, point

England needs serious help. Imagine all the living creatures living in point

England that have died from our cause, pollution. We litter our rubbish

anywhere thinking it would do no harm to the environment. But look where’s

that’s gotten us. I’m not saying that everybody litters but I’m also not saying

that I don’t litter myself. We need to change for the better of our environment

and not just for point England. All over the world. If us humans want to live a

happy life, then caring for the environment and the sea is a start towards it.

Click the link here to see what difference we could do ProtectOurLocalMarineArea

Measurement Task: Cake Competition

Cuboid

Length = 46 cm

Width = 32 cm

Height = 18 cm

Cylinder

Height = 20 cm

Diameter = 18 cm

Radius is equal to :  9 cm

_____________________________________________________________

Finding the volume

Cuboid/Rectangle

Formula = Length x Width x Height

46 x 32 x 18 = 26,496 cm3

Cylinder

Formula = π r2 h

Π x 92 x 20 = 5089.3 cm3 (rounding to 1 decimal point)

26,496 + 5089.3 = 31585.3 cm3 is the volume of the cake

______________________________________________________________

Finding the surface area

Cuboid

Top = 46 x 32 = 1472 cm2

Bottom = 46 x 32 = 14722

Left = 32 x 18 = 576 cm2

Right = 32 x 18 = 576 cm2

Front = 18 x 46 = 828 cm2

Back = 18 x 46 = 828 cm2

1472 + 1472 + 576 + 576 + 828 + 828 = 5,752 cm2

Cylinder

Formula = 2 Π r2 + 2 Π r H

2 x Π x 92 + 2 x Π x 9 x 20 =

508.9 + 1130.9 = 1639.8 cm2(rounding to 1 decimal point)

5752 + 1639.8 = 7391.8 cm2 is the surface area of the cake

Today in maths we used the site Tinkercad to create and design any

3D shape or block. We could use any measurements of our own and

had to find the volume and surface area of the shape. As you can see

above, I've written the volume and surface area for the shape I created.

Finger Joints

During the past few weeks of wood, my class and I have learnt about
finger joints. Finger joints is when two pieces of wood are cut up on
the side like the pattern of our fingers and joined up together with
another piece of wood. Finger joints are used to hold the wood
steadily in its position with a bit of glue added to it. My class and I
are using this method to create a serving tray. So far we've been able
to use the finger joints with 4 pieces of wood to create a rectangle.
The tools we used to create the joints was a wooden hamlet, chisel, saw,
a pencil and ruler to line my cutting. So far, I'm happy with my product,
now all there's left to do is the bottom.

Teachers going on strike for the first time in 24 years

Teachers going on strike for the first time in 24 years



During the past days I've been at school, I´ve been investigating
on the issue of teachers going on strike. Teachers are wanting
more resources, less stress of work and a pay rise. Teachers can´t
teach if the resources they need aren´t supplied and if the amount of
money they are getting isn´t suitable for the amount of work they are
doing. Lynda Stuart who is the President of the New Zealand education
institute has spoken, "We have a government we know are listening.
We are in a situation that if we don't fix this now we absolutely
will be in a disaster.¨ Another former teacher of New Zealand and is
now teaching in Canada has spoken about the differences in teaching
between New Zealand and Canada. In Canada, the amount of money
paid is suitable for him plus the amount of work he gets. There´s no
NCEA/NZQA, no standardized assessments and it´s a straight forward
curriculum.¨I will go back to NZ but not to teach¨, he said.