Wednesday, May 30, 2012

Great trip!

We had a fine trip to the IMAX to see Sea Rex, followed by lunch at Pizza Hut.  I learned a lot about dinosaurs.  I never knew there were so many dinosaurs that lived in the sea.  Did you jump when the shark leapt out of the screen at us?

Last day of Year 4 tomorrow.  Check out the countdown on the right side of the blog page.

Tuesday, May 29, 2012

Trip tomorrow (Wednesday)

The trip to the IMAX, followed by lunch at Pizza Hut, is tomorrow morning (Wednesday).  If you have paid the money and given in your slip, come to school at the usual time for lining up at 8:00am.  We will stay in class for the first lesson, and go to buses at 9:00am.  We will be back in school before second break, and we will stay in school until 2:30pm.  Remember to wear your normal school uniform.

Sunday, May 27, 2012

Investigating maths

Even though we have finished our maths exam, we can still learn and have fun at the same time.  Today we investigated adding sets of three numbers chosen from 1, 4, 7 and 10.  All the possible combinations are shown on the board above, unless we missed any!  We found that the totals are always multiples of 3.  This happens because the difference between the numbers is 3, and we chose three numbers.  Can you work out how to get multiples of 4?  Hint: start with different numbers, and choose four of them instead of three.

Thursday, May 24, 2012

Trip to IMAX on Wednesday

Don't forget your trip slip and money if you have not already brought it.  Sunday is the last day to bring slips and money.

Investigation: squares on a chessboard

How many squares are there on a chessboard?  Lots of people think the answer is 64, but in fact you can find 204 squares.  There are 64 single squares, but there are also squares of other sizes, made from single squares.  There is of course one big square (the whole board) which contains all 64 small squares, but there are lots more.  The board above shows how many squares you can find of each size.

We will continue to learn interesting things next week.  The end of exams does not mean the end of learning!

Wednesday, May 23, 2012

Four colour patterns

Today we investigated the number of colours needed for complicated patterns.  It has been proved mathematically that the maximum number of colours you will ever need to colour a map pattern is four.  I have shown an example on the board above.

Tuesday, May 22, 2012

No exams today

Although we had no exam today, we did some good work on spelling and maths, in the form of word searches, a crossword and a Sudoku puzzle.  Well done if you solved all of the puzzles today.