Zoo Maths - thanks to Mrs Madden!

Hippo Maths - October 2016

Photographer William Warby snapped these 2 kissing hippos at the Whipsnade Zoo in England. Actually, it's hard to tell whether they're playing, kissing, or just shoving each other out of the way. Hippo is short for "hippopotamus,' which means "river horse."

These round, grey lumps are the 3rd largest land mammal, after the elephant and the white rhinoceros. The funny thing is, their closest cousins are another set of chubby mammals: whales and dolphins! Well, hippos love water just like they do, and it looks like they love to play, too.

Questions:

1 : Hippos need to breathe every 3 minutes. If a hippo swims for 3 minutes, comes up for 1 minute, then goes under for 3, how many minutes does that take?  

Bonus: If it keeps up that pattern, is the hippo swimming or breathing at 10 minutes?

 

Extension : A hippo can live until 45 years. If a hippo's grandchildren are all ages that divide neatly into 45, with 1 hippo of each age, at least how many grandchildren must it have?

Post your answers on the blog below in the Comment box! Don't forget to leave your first name so we know who left the comment!

Pac Man part 3

Wow an end result to 2 days of Maths thinking! If you would like to know what our challenges were take a look at our window and see if you can solve them too!

Now we are going to use our pictures to revise how to estimate, count using arrays, count in 2s, 5s, and measure perimeter and area. 

We are going to draw our own versions on grid paper and make our own mazes. Then we will write instructions using Rotation and Direction words. Watch this space!

Day 2 of Pac Man

This group are reading their challenge before deciding if they need to go out into the school to explore or ask another teacher for clues, or work out the problem themselves.

Measuring time, length, and using clocks and themselves!!

Ali wants to count how many stick it notes it has taken to make Pac Man! Will he count in arrays, groups of 2 or 5 or 1-1? 

Tim has a try too, he estimated first and them started to count. How would you count them up? 

Pac Man Challenge

Focus: to revise Maths Knowledge and Skills from during the year in the context of our School Conmunity! 

Room 20 invited R21 and R16 to participate in our challenge too - check out their windows this week as well!

Children were put into groups of 3 and given a bag of 10 challenges to complete in any order. 

Each challenge was awarded 2 stick it notes when Mrs Trembath had listened to  how the group had solved each challenge, before they were given the go ahead to choose another challenge from their bag.

ASB Get Wise Programme Visits Room 20 today!

Serena from GetWise came to school to teach us about how to save our money and keep our money safe. Where does money sit? What is an eftpos card? Whose money is it? What is a credit card and where does the money come from? What is 'borrowing' ?
Each team earned $100 for doing jobs. They put the money in the Bank. Haden, Nathan and Ali went shopping with $100. How will they spend their money? How to look for a best price?

Fantastic Joshua!

Great thinking in place value maths this week!

The results of our scientific research into liquids floating on liquids

Is it the art of science or the science of art?

The art of science or the science of art?

We wonder if other liquids can float on water? Can air float on water?

We made a wonderful concoction of water, dye, washing up liquid and cooking oil! We mixed it up and made it bubble as we swished it around with a paint brush! Some brave people blew bubbles with straws. 

We watched to see what would happen. We made our own observations about what floated on the top, what sunk and what mixed and dissolved in the water. Then we carefully lay paper across the top to make a print of the floating ingredients! What do you think was floating on the top? Why? We are going to explore these questions in class. 

Water water everywhere...

Did you know that a person who studies water is called a Hydrologist!

Thank you Mrs Long for being our recorder today as we brainstormed our ideas about water! 

The Water Molecule Cheer: 

Give me an H! 

Give me a 2! 

Give me an O! 

What does that spell?

H2O!

When atoms join together they form molecules. A water molecule is made up of 2 Hydrogen atoms and 1 Oxygen atom. Atoms are teeny tiny building blocks that you can't see. Water molecules lock into position when they freeze...brrr!