Christmas Problem Solving

Here are some Maths problems for you to solve. Bring your answers to Room 5

1) Help Santa solve his Christmas problem

Santa looked outside to see how many of his reindeer and elves were helping

to finish up the final touches before he left for his trip around the world. But, when he looked outside, he could only see their legs. He couldn’t figure out how many elves and reindeer were outside. He counted 50 legs.

Santa wants you to help him figure out how many reindeer and how many elves are helping out.

2) Santa’s Elves

Santa has some very experienced elves and he has some new inexperienced elves. Each experienced elf can wrap 60 presents a day and each newer inexperienced elf can wrap 45 presents per day. Santa has a total of 9 elves who wrap presents. They wrap 510 presents a day.

How many experienced and inexperienced elves does Santa have?

How do you know?

3) Christmas Gift Problem

Sarah went shopping to buy Christmas presents for her family:

A grandmother

A grandfather

2 mothers

2 fathers

2 daughters

2 sons

She finished her shopping and everyone got a gift. She only bought 7 presents. How is this possible

Source: http://www.worksheetplace.com

Brainteasers for October

1)    In a year there are 12 months. 7 months have 31 days.

          How many months have 28 days?

2)    You are a cyclist in a cross-country race. Just before the crossing finish line you overtake the person in second place!

          What place did you finish in?

Source: www.theteacherscorner.net

3)    Froggie fell down a 10-metre well. He cannot hop out. He has to climb out. He climbs three metres a day, but during the night, while resting, he slips back two metres.

          At this rate, how many days will it takes Froggie to climb out of the well?

Source: Discovery Education

            

Answers to Room 5

Maths Buddies in Action

Addition Game

Time Matching Game

Shape work on Geo-boards

Tables Machines

Maths Circus

Place Value work

More Place Value work

Maths Buddies

Maths Buddies began several weeks ago in Room 5. We have been getting to know each other with number work. From next Monday we will have Maths Stations each morning. The activities will include:

Number

Shape and space

Computer work

Data 

Measurement

Games

Big Buddies from Room 11

Ellen                               Aaron

Faith                               Gearóid

Rasaq                             Tia

 Small Buddies from Room 2

Samuel                           Daniel

Khadija                          Josh

Ciara                              Norbert

New Brainteasers

Cross-country Race

Some athletes were returning from a cross-country race. Athlete C came third, and athlete E came second. From the following information, can you tell how athletes A, B, and D came in the race?
Athlete A was not last. Athlete A came in after E. Athlete D was not first.

Cats and dogs

All of Tom’s pets are dogs except one. All of his pets are cats except one. How many cats and dogs does Tom have?

Source: Discover Education

Odd one out

Which number is the odd one out? Why?

3	33	15	36
12	27	34	18
72	39	30	6
24	21	9	42

Source: Scholastic, Mensa Number Puzzle for Kids

2D Shapes

We worked on 2D Shapes in Mrs Quinn’s Room. Some people worked on geo-boards (Mrs Quinn told us the name). They were exploring how to show different shapes. What do you think?

Other children decided to make shape people. Have you ever met people like the people we made?

Congratulations

Everyone worked very hard this term. Keep up the good work!

Shapes

We worked on 2D shapes with Mrs Quinn. Afterwards we cut out lots of our favourite shapes. We glued them on paper to make beautiful designs. What do you think ?

Angela, Conor, Ebony, Michael, Nathan and Jade

Adding

We were adding with our Tens and Units boards. We added numbers like this

   Tens         Units

      2             7

 +   1             5

We got strange numbers like 3 Tens and 12 Units. You cannot see that on the 100 square. We learned how to fix it.

We swapped 10 Units for 1 Ten. That’s a fair swap. We made a new Ten to add to the other Tens. Our answer was 4 Tens and 2 Units. That number is 42. 42 is on the 100 square. Well done.

We worked on Mrs Quinn’s interactive whiteboard as well.

First Class Rooms 1 and 9

More Brainteasers

Well done to Conor, Michael and Leah in Room 7. They solved the puzzles. It took a few days, but they got there.

Here are some more brainteasers. Remember to read each word carefully and to think in different ways. Bring your answers to Room 5.

1.     Tom was standing on one side of the river, and his dog Spot was standing on the other side. "Come on Spot. Here, boy!" shouted Tom. Spot crossed the river, ran to Tom, and got a treat for being a good dog. The amazing thing was that Spot didn't even get wet!

          How did Spot do that?

2.     One day, two mothers and two daughters went shopping for shoes. They each bought one pair of shoes. Altogether, they had three pairs.

          How is this possible?

Source: Discovery Education

Brainteasers

Here are some Brainteasers for you. You have to let your brain think in different ways. Please bring your answers to Room 5.

1.     A girl who was just learning to drive went down a one-way street in the wrong direction, but didn't break the law. How come?

2.     How can you throw a ball as hard as you can and have it come back to you, even if it doesn't hit anything, there is nothing attached to it, and no one else catches or throws it?

3.     Two students are sitting on opposite sides of the same desk. There is nothing in between them but the desk. Why can't they see each other?
 

Source: Brain Teasers, Sterling Publishing Company

Graphs

Fruit Survey

We asked all the adults in the school to tell us their favourite fruit. We used a tally to gather the information.

We then made a graph to show the results.

Strawberries were the most popular fruit. Oranges were the least popular. 6 more adults preferred strawberries to oranges.

Later Mrs Quinn showed us how to do graphs on the computer. We tried it.

This is how to do it.

Open Excel

Type in all the information.

Highlight the information.

Click insert.

Click column.

The graph will appear. Easy!

Alex, Ayo, Bianca, Maro

Cars

We counted all the cars in the car park last Thursday.

Blue was the most popular colour. Green was the least popular colour. Grey and silver had the same number.

Michael, Jade, Natalia

We counted all the cars in the car park last week.

Blue was the most popular colour. Green was the least popular colour.

Michael, Nathan, Leah, Ebony, Conor, Tracy

Cooking

I was cooking with Alida today. I made pasta sauce. I chopped onions. I put in a tin of tomatoes. We got some parsley and basil. There was a lovely smell. Mrs Quinn said it was like an Italian restaurant. All the teachers had a taste at lunchtime.

Angela

Number Patterns

Counting in 2’s on our Interactive Whiteboard.

Look at the pattern. Pink is my favourite colour.

Bianca

Counting in 3’s

I chose green. Look at my pattern.

Ayo

Join the dots

We joined the dots from 1 up to 10 to make beautiful fish.

The Story of 10

We enjoy working with Numicon. There are lots of shapes and lots of colours.

In these pictures we are making ‘The Story of 10’.