In response to whether completing the square is a good way to solve quadratics is a matter of personal choice. It is a valid way of doing it. You must remember that square root of a number has 2 solutions (the positive and negative result.
example (x-2)^2 -9 = 0
(x-2)^2 = 9
solve x-2 = 3 or -3
therefore x = 5 or -1 these are the roots of the equation as well when written as coordinates.
Wednesday, 30 May 2012
Monday, 28 May 2012
Do you need Help?
If anyone needs help with particular questions make a comment and I will check each evening and respond as a blog
Friday, 25 May 2012
Good Luck in your exams
Good luck and study hard this coming week. Start with the topics that made the most sense and then work on the ones that didn't. Post comments and questions and I'll try and get back within 24hours
Mrs H
Mrs H
Sunday, 20 May 2012
Bivariate Data
Good luck on the test tomorrow!
here are the bivariate notes from today. Remember that this topic is about reading tables carefully looking for units that may be in text above. the bivariate information requires you to be familar with the terminology and use it in justifying answers. Correlation, regression line are key concepts. The book SUPERCRUNCHERS is a great read for context in this topic!
here are the bivariate notes from today. Remember that this topic is about reading tables carefully looking for units that may be in text above. the bivariate information requires you to be familar with the terminology and use it in justifying answers. Correlation, regression line are key concepts. The book SUPERCRUNCHERS is a great read for context in this topic!
Sunday, 6 May 2012
Quadratic Solving
After the poor results from the last test the blog will have some practice questions and notes covering quadratics, functions and algebra manipulation strategies.
here are some links to practise factorising.
BBC bitesize activity
changing formulae notes
General algebra skills
ixl practise (do all algebra topics)
Attached are the notes from solving quadratics
here are some links to practise factorising.
BBC bitesize activity
changing formulae notes
General algebra skills
ixl practise (do all algebra topics)
Attached are the notes from solving quadratics
Finance
Start collecting information on credit cards, investments and loans
Key words are depreciation and inflation. You need to be able to calculate percentage increase/decrease in single calculations by the end of this chapter.
Try this game for something different
percentage change game
other ideas include watching the video on spreadsheets from the classpad website and the finance sections as this is one of the tasks you be set for homework.
Key words are depreciation and inflation. You need to be able to calculate percentage increase/decrease in single calculations by the end of this chapter.
Try this game for something different
percentage change game
other ideas include watching the video on spreadsheets from the classpad website and the finance sections as this is one of the tasks you be set for homework.
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