Showing posts with label Maths. Show all posts
Showing posts with label Maths. Show all posts
Sunday, 23 November 2014
Sunday, 16 November 2014
What 2 things do you always need to say to describe an enlargement?
What does centre of enlargement mean?
What is a scale factor?
Explain how to work out the scale factor on a grid, and with no grid. Use diagrams you have screenshot from the myimaths lesson.
What happens to the angle sizes in the corner of the shape when you enlarge it?
Sunday, 9 November 2014
Translation
Translating is when you move a shape or object to another location.
A vector is two number vertically surrounded by brackets that show you where to move it to. THe top number is if it moves left or right and the bottom is the up or down.
A vector is two number vertically surrounded by brackets that show you where to move it to. THe top number is if it moves left or right and the bottom is the up or down.
Thursday, 23 October 2014
Rotational Symmetry
Translations: Rotational Symmetry
- Go through the MyiMaths lesson doing all of the activities Myimaths-Shape-Symmetry-Rotational Symmetry
- Create a blog post: Title: Rotational Symmetry Label: Maths
- Answer these questions
- In your own words explain what rotational symmetry is. Rotational Symmetry is where a shape can rotate and be the same as it was when you started.
- A shape has an order of rotational symmetry of 2. What does this mean?A rotational symmetry of 2 is where the shape can be exactly the same twice through out the 360˚ turn.
- How is rotational symmetry different from line symmetry? In rotational symmetry if a turn of 180˚ or less produces an image that fits exactly on the original and in line symmetry the shape can be mirrored.
- What do you do to check if a shape has rotational symmetry? You rotate it.
- Find pictures of 3 real life objects which have rotational symmetry (not shapes, objects e.g. foods, logos) and paste them into your post
Complete this table
If a shape has rotational symmetry of order 3, how many degrees would it rotate to match itself? Answer = 120 degrees
Order
|
Degrees of rotation to match its shape
|
2
| 180˚ |
3
| 120˚ |
4
| 90˚ |
5
| 72˚ |
10
| 36˚ |
- Do the Mathopolis quiz and record your score
- Create an amazing design with the order of symmetry = 5 using symmetry artist. Screenshot and add it to your blog post.
- Worksheets at the front of the room. Glue into your maths book and write the date and learning intention. (see Miss Campbell for a mini lesson on how to do the grid worksheet)
a. Rotational Symmetry is where a shape can rotate and be the same as it was when you started.
b. A rotational symmetry of 2 is where the shape can be exactly the same twice through out the 360˚ turn.
c. In rotational symmetry if a turn of 180˚ or less produces an image that fits exactly on the original and in line symmetry the shape can be mirrored.
d. You rotate it.
Sunday, 8 June 2014
Mode, Median, Mean and Range
Lyrics:
Mode, median, mean and range
Mode, median, mean and range
Don't you think these words sound strange
Don't you think these words sound strange
I will get your mind to change
Mo, mo, mo, mo, mode
It's the number that occurs occurs the most most
I got a 1 2 2 3 3 3 4, 1 2 2 3 3 3 4
Which of those numbers did I say more
Which of those numbers did I say more
3 is the most because it occurs the most
Mo, mo, mo, mo, mode is the number that occurs occurs the most most
I got a 1 2 2 3 3 3 4, 1 2 2 3 3 3 4
3 is the most because it occurs the most
Now stop lets take it to the middle
Got to find the median no time to daddle diddle
Line up all the numbers from the smallest to the biggest
The one thats in the middle does a median jig
Go median, middle number!
Go median, middle number!
Now the third one mean not nice but mean
Its the average number if you know what I mean
You just add up all the numbers
Then divide it by the number of adders
Whats that whats mean
You just add up all the numbers
Then divide it by the number of added
Now you know what I mean
Divide it by the number of adders
Mean it's the average number
One more round and the song is done
Lets talk about range and have some fun
It's the biggest number minus the smallest number, in the group, in the group
It's the biggest number minus the smallest number , in the group, in the group
You got Mode, Median, Mean and Range
Mode, Median, Mean and Range
Don't you think these words sound strange?
Don't you think these words sound strange?
I just got your mind to change
Wednesday, 14 May 2014
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