Wednesday, 10 July 2013
Thursday, 4 July 2013
Data Type
1. Explain the difference(s) between the 2 diagrams.
2. What is the difference between discrete and continuous data?
3. What is the relationship between Histogram and continuous data?
Tuesday, 2 July 2013
Representation of Data - "Out-of-the-Box" way
Labels:
Statistics
source: LKY
The number of dengue infections has risen to an alarming number in 2013. NEA has been providing the public with updates, and at the same time sending alerts via the media to caution and educate the public.
The number of dengue infections has risen to an alarming number in 2013. NEA has been providing the public with updates, and at the same time sending alerts via the media to caution and educate the public.
Below is one of the ways that NEA presents information updates to the public:
Compare this "way" of presenting data with the "conventional" way of presenting data.
Discuss the advantages & disadvantages of presenting data in this manner.
Data Handling: Bar Graph vs Histogram - The Challenge
Labels:
Statistics
source: LKY
Ms Manju, the school librarian, makes use of the database management system to keep track of the loans by students.
Each month, she would present the data below in a bar graph. The bar graph shows the total number of books borrowed by category from January to May.
The Challenge
From the way the system captures the information, there are more useful information that can be extracted from the system for use.
Suggest to Ms Manju how she could make use of the data captured in the system to present a different set of information (other than the number of books borrowed by categories) using a histogram. Elaborate how this information can be used to work out with a strategy to encourage students to read more books.
As a group, present your suggested solution in the A3 paper provided. You may do 'mock up' on how the histogram looks like. Remember to label the axes of the histogram clearly.
Below the histogram, elaborate how this information can be used to work out a strategy to encourage students to read more books.
Submission:
Submit your answer to Ms Loh's pigeonhole upon completion (before Thursday 4 July 2013)
Remember to include your Class, Group number, Name of Group Members at the bottom of the paper.
Ms Manju, the school librarian, makes use of the database management system to keep track of the loans by students.
Each month, she would present the data below in a bar graph. The bar graph shows the total number of books borrowed by category from January to May.
The Challenge
From the way the system captures the information, there are more useful information that can be extracted from the system for use.
Suggest to Ms Manju how she could make use of the data captured in the system to present a different set of information (other than the number of books borrowed by categories) using a histogram. Elaborate how this information can be used to work out with a strategy to encourage students to read more books.
As a group, present your suggested solution in the A3 paper provided. You may do 'mock up' on how the histogram looks like. Remember to label the axes of the histogram clearly.
Below the histogram, elaborate how this information can be used to work out a strategy to encourage students to read more books.
Submission:
Submit your answer to Ms Loh's pigeonhole upon completion (before Thursday 4 July 2013)
Remember to include your Class, Group number, Name of Group Members at the bottom of the paper.
"Dengue" Data: Let's Compare and Find out "What's Wrong"
Labels:
Statistics
source: LKY
The number of dengue infections has risen to an alarming number in 2013. NEA has been providing the public with updates, and at the same time sending alerts via the media to caution and educate the public.
The line graphs below is one set of information that it has been updating the public.
Make a 'guess', what's the intent behind communicating this figures to the public?
Examine these two line graphs carefully.
While they "attempt"the report similar information, there's something not quite right in the way data is presented in one of the graphs.
Can you tell "What's Wrong" with which graph?
Source of Data: http://www.x-dengue.com/Home/Summary (correct as on 5 June 2013)
The number of dengue infections has risen to an alarming number in 2013. NEA has been providing the public with updates, and at the same time sending alerts via the media to caution and educate the public.
The line graphs below is one set of information that it has been updating the public.
Make a 'guess', what's the intent behind communicating this figures to the public?
Examine these two line graphs carefully.
While they "attempt"the report similar information, there's something not quite right in the way data is presented in one of the graphs.
Can you tell "What's Wrong" with which graph?
Source of Data: http://www.x-dengue.com/Home/Summary (correct as on 5 June 2013)
Sunday, 2 June 2013
Mathematics - Self Directed learning
(I) Cultivating Good Habits
1. Set aside time to review what is taught in the lesson. Research shows that immediate review increases long-term memory compared to do the same amount of review or day or more later.
4. Attentively review all the work returned to you. Read the feedback that is written on the handouts. Seek help when you do not understand how to do the corrections.
5. Do not say "I knew it". Often, when we observe a classmate worked out the solution at the board, we told ourselves that we understand and know how to do the same. The proof of one's ability is to do it and experience it. We need to "do" it so that we can remember the "how" to do it.
6. When solving problems, do not go straight into "working" on the problem using familiar methods. Read the problem carefully. It is essential to understand the problem. Identify the important information presented. You may need to break down the problem into smaller problems to tackle. Then, think of strategies that could be applied to the situation.
7. Do not expect all problems in examinations/ tests are similar to the assigned homework problems. It is important to apply what we learnt to solve new problems. Apart from the regular practice, make an attempt to read go through reference materials to see how similar concepts can be presented in a variety of scenarios. Think through how the problems can be solved (if you are unable to do all these questions).
8. Do not multi-task while studying. You need to give the material your full attention. Learning takes not only effort and time, but also intense concentration.
1. Set aside time to review what is taught in the lesson. Research shows that immediate review increases long-term memory compared to do the same amount of review or day or more later.
- Go through the handouts that were referred to during the lesson. You may login to the AceLearning Portal to watch the lesson video.
2. Practise to consolidate learning
- If you have finished your homework (or if no homework is assigned that day), turn to the relevant chapter in the Maths Workbook and select similar questions to attempt.
- Consider setting aside 20-30 minutes everyday for regularly revision. You may login to AceLearning Portal to attempt the "Progressive Mastery Programme" to practise the procedure.
- Regular practice helps to improve your mastery of the procedure. It helps to improve the fluency and therefore the speed when answering questions.
3. All worked solutions to problems should be legibly written and well organised. Make it a habit not to skip steps, especially when you are first introduced to the concept or procedures. This will help you to present your thoughts clearly to the reader of your working.
4. Attentively review all the work returned to you. Read the feedback that is written on the handouts. Seek help when you do not understand how to do the corrections.
5. Do not say "I knew it". Often, when we observe a classmate worked out the solution at the board, we told ourselves that we understand and know how to do the same. The proof of one's ability is to do it and experience it. We need to "do" it so that we can remember the "how" to do it.
6. When solving problems, do not go straight into "working" on the problem using familiar methods. Read the problem carefully. It is essential to understand the problem. Identify the important information presented. You may need to break down the problem into smaller problems to tackle. Then, think of strategies that could be applied to the situation.
7. Do not expect all problems in examinations/ tests are similar to the assigned homework problems. It is important to apply what we learnt to solve new problems. Apart from the regular practice, make an attempt to read go through reference materials to see how similar concepts can be presented in a variety of scenarios. Think through how the problems can be solved (if you are unable to do all these questions).
8. Do not multi-task while studying. You need to give the material your full attention. Learning takes not only effort and time, but also intense concentration.
- Organise your time so that you do not expect to be electronically interrupted while working.
- Close the learning device when you are practising on paper.
- If you are using online platforms like the AceLearning Portal, limit yourself to just that "window"/"tab" in the browser. Turn off auto-notification from applications like Facebook and Chats.
Subscribe to:
Posts (Atom)