David's+Journal

__//**​10th March 2010**//__ We are learning about Time and Temperature I would like to learn more about timezones because I think that they sound interesting. We'll be looking at these this week David. Mrs. Breeds.

__//**15th March 2010**//__ We are learning about different time zones around the world and how to calculate time differences. Time zones work around the sun because since the earth is round the sun cant be all around at the same time so when it is day here it is night in berlin. There are 24 different time zones and it is a different time in each. It all works around Greenwhich mean time. A good start - you need to explain how GMT is used to calculate time differences and give an example from your learning.

__//**19th March 2010**//__ We are learning about exchange rates for currency. Exchange rates come in when changing New Zealand dollars to another countries currency 1 New Zealand dollar is worth just under half a pound in the U.K and in Zambia 1 NZD is Worth about 3'350 Zamia Kwacha. Good examples - you also needed to explain how to complete a conversion.

__//**19th March 2010**//__ We are learning about the difference in celcius and fahrenheit. Fahrenheit is the way of temperature telling the used in the olden days. Some countries still use fahrenheit like America but most countries use Celcius. To convert fahrenheit to celcius minus 32 Divide by 9 Times by 5. Does this formula work? We discussed F-32*5/9. Why don't you check yours to find out if it works as well??

//__**24 March 2010**__// We are learning to use algebraic thinking to solve subtraction decimal problems. Today we learnt a new stratagy. I think it is a very useful one and it made it a lot easier. in the follow up sheet we did i did very well so i think i have got the hang of it. The strategy is to add a number on to make the second number to a easy number then you must add the same to the first E.G 5.12 - 3.89= 5.23 - 4= 1.23 +0.11 +0.11 I am sure you have got the hang of it David. It is a really useful strategy to use especially when solving complex subtraction problems. TC

//__**29th March 2010**__// ​W.A.L.T Use Temperature as a strategy to help us add and subtract intergers. Today we learn't a new strategy to work out adding and subtracting intergers. The Strategy was that if there was a pool that was positive 17 and you were taking out negative 3 then the temperature would go up. It Goes up because you are minusing the cold which would Cause the temperature to rise. I Find this easy to do so it is no problem for me. Eg. -12+-8= -20 You have got it! I am pleased you find it an easy way to remember integer problems. TC

W.A.L.T add not subtract subtraction decimal problems Today we learnt a strategy to convert subtraction decimal problems into addition decimal problems. Also on the 24th march we learnt a strategy like this. To do this you put the second number you were subtracting first then you do + somthing = the first number in the equation. E.G 8.96 - 3.24= 3.24 + ??? =8.96 5.62
 * //__31st March 2010__//**

__//**19th April 2010**//__ W.A.L.T To be able to use a variety of different strategys to solve complex problems. Today I learnt about a lot of new strategys one of them that I did not know was looking for a pattern. We did a 2006 Otago problem solving sheet to try the new strategies. I think i did well and it will help we in the real thing. What strategies do you feel comfortable with using and how do you see these helping?

W.A.L.T Be Able To Use a variety of graphs to show different data. I learnt what and how to use Dot Plots, Back To Back Dot Plots, Stem and leaf graphs, Back To Back Stem and leaf Graphs, scatterplots and histograms. I know that histograms show continous Data. Great to see lots of learning going on David. Can you tell me what kind of bar graph shows discrete data ? A histo gram can show both continuous and discrete data. David
 * //__26th April 2010__//**

W.A.L.T Evaluate statments about graphs. Today we were learning to be able to interprate and create statments about graphs. I was able to do this well and my statments were all supported by the data displayed on the graph.
 * //__4th May 2010__//**

__//**5th May 2010**//__ Today We Learn't to create and interpret box and whisker plots. I think these are great graphs to use for displaying data. Although i found these confusing at the start i got them in the end. What did you find confusing? Are you confident in being able to interpret these and talk about range/interquartile and median? I found the interquartile range confusing. I can now confidently talk about range, median but now i think i know how to work out the interquartile range.

Today we were writing our aims hypothesis and methods for our statistical investigations. We were also learning to create a mathmatical designs and they have to show symmety ect.
 * __//13th May 2010//__**

Yesterday we did our first maths olympiad test. I got 2/5 i need to read the question better next time. You also need to use more than one strategy to go back and check that you were right. __//**24th May 2010**//__ Today we discussed our teaching mobiles and we told a buddy our steps to teach others then got feedback on whether it worked and if it made sense. My steps all worked and they also made sense.
 * //__20th May 2010__//**

__//**27th May 2010**//__ Today we had our second otago maths problem solving test i got 5/5 and i think i did alot better than last time hopefully i will get 5/5 again next time.

__**//31st May 2010//**__ When we did an online knowledge test in the form of a slideshow i realised i had not done as well in my place value i will be trying to improve it so next time i will be able to do the place value fine. How are you intending to work on your place value? See me if you want some games and activities to work on this. Well done on the Otago as this was an excellent result.

__**//16th June 2010//**__ Today we did a maths oylimpiad test and i got 3/5 it was an ok score but i should do better next time.