Rhyme to Riches

On a lonely beach you uncover a locked treasure chest along with an ancient puzzle and a bag of rusty keys.

There is a strange rhyme inscribed in the lid of the chest. The treasure is yours if you can decipher the code.

Only one key in 78 will open this chest.

Choosing the right one is now your quest.

Numbers square and triangular will not succeed.

Those divisible by 5 or 7 will also impede.

Numbers past 300 wont reveal the gold.

So calculate and eliminate before you grow old.

Ten plus one wont get the job done!

But prime will be your friend, right to the very end.

Remove all these numbers, the rhyme will tease.

Now turn back the lock with just one of the keys.

Before you start the investigation you need to know:-

1. Prime and Composite numbers

2. Square and Triangular numbers

3. Divisibility rules

Learning Intentions

You will need to design a key that will unlock the chest.

You will be able to describe properties of prime and composite numbers.

You will be able to describe properties of square and triangular numbers.

You will be able to identify whether numbers are divisible by 2, 3, 4, 5, 9 and 10.

Process 

1. Create a new folder called “Rhyme to Riches” into your Maths investigation folder in your one drive.  

2. Log into your iMaths account and open investigation 1, "Rhyme to Riches" click on student pages and download Investigation printables and save to your folder 

3.  READ, UNDERSTAND and PLAN your investigation. 

4. Create a glossary to understand the meaning of the following words 

inscribe, decipher, impede quest, eliminate, ancient, succeed, factors, "Pascals Triangle" 

5. Highlight and save your rubric 

6. Complete and save your investigation plan 

7. Complete the "Ancient Puzzle" to help you decipher the code and save to your investigation folder.

8. Using the clues in the Rhyme you will need to use a process of elimination to find the correct number.

9. Continue to follow the steps in "Rhyme to Riches" 

Useful Websites 

• Prime numbers (www.mathforum.org) 

• Divisibility (mathforum.org) 

• Pascal's triangle (www.mathsisfun.com) 

• Triangular numbers (www.basic-mathematics.com) 

• Fibonacci Numbers and Nature (www.maths.surrey.ac.uk) 

• Fibonacci Numbers and the Golden Section (www.maths.surrey.ac.uk) 

• Fibonacci Sequence (www.mathsisfun.com) 

Continue to check your rubric.

Hand in your Key upon completion.