#throwback #circles

Ms Professor sharing what she has learnt from watching the video on the different parts of a circle...

When finding the perimeter of figures involving circles, semicircles and quadrants, ask yourself this important question:

How many curves (arcs) and straight lines  make up the figure?

Use this question and the following strategy to help you find the perimeter:

1. Label the radius & diameter.

2. Highlight the straight lines.

3. Write the formula of the arc length(s) on the diagram.

4. Show all the steps. (Take note of the pi value to use.)

5. Check that all lines have been accounted for by using ticks. 

M

Koobits!

Dear children,

As shared during our assembly programme yesterday, the school will be using Koobits Maths online learning platform this year. This will replace Learnlogy.

There are many interesting Maths challenges and resources that will be useful in the learning of Maths. You can challenge yourself, your friends and even work in teams to take part in class challenges. There are also videos to help you in your revision.

Do note that your parents can also register (using your account) to assign homework for you to do additional practices.

The details are as follows:

URL: http://problemsums.koobits.com/

Login Id: TXXXXXXXX (Birth Cert No)

Password: TXXXXXXXX (Birth Cert No)

 

Have fun! :)

 

Circles

Dear children,

Let's learn about circles!

How is this topic relevant to our daily life?

Radius, Diameter, Circumference & Pi- The Definitions

 

 

Circumference & Area of Circles

 

What's area? What's perimeter?

 

 



 

Examples 

 

Pi Song

 

 

 

Trivia about Pi

 

 

 

Pi Day

CNN Pi Day Article

A FB post about Pi by our PM Lee

Lee Hsien Loong

March 13 at 10:59pm · 

Happy International Pi Day! For the unacquainted, Pi Day pays tribute to the mathematical constant π, or 3.14159... (which is why I posted this at 1.59pm. smile emoticon ). But even if you're not a math lover, no need to be "Pi-Seh".

This year, Pi Day coincides with the start of the school holidays. Science Centre Singapore has plenty of activities planned 
(http://www.science.edu.sg/events/Pages/PiDay.aspx). One is a game memorising the number of digits in π! So how many digits can you memorise? - LHL

Pi Day: What you need to know - CNN.com

Pi Day is celebrated on March 14 to honor the famed irrational number.

CNN.COM

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Our 5D Class Blog

Dear children,

You can access our 5D class blog by clicking on the following:

http://the5diamonds.blogspot.sg 

Enjoy the March Hols! :)

Hello, children!

School is officially out for the next one week! :)

While enjoying your well-deserved break, remember to find time to work smart too.

Have a wonderful week with your family and take care! =)



Have a positive mindset and things will be possible! :)

ICT: Model Drawing

Try this website for practising model drawing, Maths professors!

• Thinking Blocks!

ICT: Percentage

Hello, awesome children!

How fast and accurate are you in solving percentage questions?
Let's find out! Have fun! :)

• Number Invaders! (Percentage of a Quantity)
• Match 'em! (Matching figures to the correct %)

CA1 Maths Honour Roll!

Hola, children! 

I'm very proud to see many of you giving your best shot in the Maths CA1 exam. It is also heartening to note that quite a number of you have surpassed the class target set. :)

Do continue to persevere on and work on your areas for improvement. You can do it! :)

Last but not the least, I would like to congratulate the following professors who have shown a remarkable performance in their CA1 results. Keep up the spectacular effort!

Professors who showed an improvement of 5 marks & above. Thumbs up to Clarissa for showing an improvement of 14 marks! :)

Professors who surpassed the class target set (Not in photo: Delylah, Chung Xuan, Roy, Yu Chen & Jonathan)

The top 5 performers in Maths CA1

Factual Fluency: Conversion of % and Fractions

Look at the 6D professors challenging their buddy in a game on converting percentages to fractions. Can you spot the smiles on some of their faces? :)

Conversion of Fractions, Decimals & Percentages

Dear Maths professors,

How superb are you in converting fractions, decimals & percentages?
Let's find out!

• Maths Playground Conversion Quiz
• Puppy Chase! (Converting Fractions/Mixed Numbers to Decimals)
• Fruity Shoot! (Fractions to Decimals)
• Percent Goodies! (Conversion quiz)
• Decention! (Group the corresponding fractions, decimals & % correctly.)

Need some revision? Use the following to help you!