Tweet, Tweet!

7

Posted by Miss Crowther | Posted in Collaboration, Numeracy, Twitter | Posted on March 3, 2014

We have been using Twitter to collaborate with other schools around the world. Twitter is a program that lets you send instant messages (called tweets) using 140 characters or less to other ‘Twitterers.’

We have learnt:

* That it is okay to use ‘text’ talk and spelling in a tweet to save on characters. For example, you can spell ‘great’ as ‘gr8’ and ‘to’ as ‘2’.

* The tweet still needs to have a beginning, middle and end.

* Sometimes you can take out words to give you more characters and the tweet will still make sense.

* You need to address your tweet using ‘@’ if you are sending it to someone specific.

* It is really important to reread, revise and edit your tweets to make sure they make sense – just like you would for any other text.

Our current ‘Twitter’ project is with Mrs Monaghan and Class 2 (@class2middleham) in England and Mrs Yollis’ and her third graders (@YollisClass) in America.  We have been tweeting clues for mystery numbers. Each class has a special day of the week that they tweet the clues and the other two classes try to work out the mystery number. When we tweet our clues on Monday, Mrs Monaghan and Mrs Yollis and their classes are still enjoying their weekend. Whilst we are sleeping on Monday night, they reply to our tweet.

 

Our Mystery Number conversation

Our Mystery Number conversation

 

Capture 1

Another ‘Twitter’ conversation

 

Capture

Capture 3

 

Tweeting mystery number clues has helped us use and learn mathematical vocabulary. Some of the words we use are the same and some are different. We learnt what a ‘digital root’ is because we had to Google it to find out what Mrs Monaghan’s clues meant.  To find the digital root you add the digits of a number together. For example, 234 has a digital root of 2+3+4 = 9

 

We have also been using Twitter to connect with Mrs S and 5/6CS in Tasmania for a weather tracking project. Mrs S set up a Google Docs spreadsheet for us to use to collect information about our weather. Some of our other blogging friends are also joining in so we have been able to compare weather from England, America, Darwin, Hobart and Melbourne.

 

Capture 2

 

Have you used Twitter before? Tell us about it!

 

Can you give us some ‘Mystery Number’ clues?

 

Mean, Median and Mode

2

Posted by Miss Crowther | Posted in Numeracy | Posted on February 20, 2014

We are learning about data and how to explain information.  This blog post was written during our reflection and summary of today’s numeracy session.

Learning Intention: 

To understand the terms mean, median and mode and calculate them using a set of data.

Success Criteria:

#1 Record data in a table

#2 Identify mean, median and mode for a set of data

#3 Explain how to find mean, median and mode

We worked with a partner to find out about the seven day weather forecast for a city.  The city could be anywhere in the world.  We discovered that in some parts of the world it is still Wednesday, even though it is Thursday here.

We collected our data from a website

We collected our data from a website

 

We recorded our data in a table to meet success criteria #1.  We calculated the mean, median and mode to meet success criteria #2.

IMG_2964

 

This blog post is to prove that we can explain how to find the mean, median and mode from a set of data.  If we can explain it clearly and accurately we will meet success criteria #3.

 

To find the mean you add all the numbers in the data set together and in our case, divide it by the number of days.

5 + 6 + 5 + 6 + 8 + 7 + 6 = 43

43 divided by 7 = 6.1

Paris’ mean minimum temperature for the week ahead is 6.1C.  Brrrrr!

 

To find the median you have to write all the numbers in the data set from lowest to highest, or ascending order.  The middle number is the median.

20, 21, 21, 21, 26, 27, 27

LA’s median maximum temperature for the week ahead is 21C.

 

Mode is another word for most.  It is the number that occurs most frequently in the set of data.  To help work it out, put the data in ascending order.

1, 1, 3, 8, 8, 10 11,

New York’s maximum mode is 1 and 8 because they are the temperatures that are forecast to occur most frequently in the next seven days.

Hobart’s minimum temperature mode is 12 because it is forecast to happen three times in the coming week.

8, 9, 11, 11, 12, 12, 12

 

Have we explained what mean, median and mode mean and how to calculate them?

 

Do you think we have been successful learners today?

 

When have you worked with data?

 

 

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