maths workbook year 8 higher - magnus c of e academy · maths workbook year 8 higher for each...
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Maths workbook Year 8 Higher
For each lesson, work for 40-45minutes including watching the video, working
on the questions and marking your work. If you finish any of the lesson before you have worked for 55minutes, use the time to go back to any questions you didn’t have time for on previous lessons.
- Percentage increase/decrease (non calculator)
-Percentage increase/decrease with multiplier (calculator) - Using proportion
- Catching up on anything you haven’t managed to complete
- Moving on to Algebra unit 2 - - Simplifying expressions
- Solving equations - Continued solving equations
- Substitution - Trial and improvement methods
- Forming equations - Inequalities on numberlines
- Continued inequalities
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Percentage increase and decrease (Non calculator)
https://corbettmaths.com/2012/08/21/increasing-or-decreasing-by-a-percentage/
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Answers
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Percentage increase/decrease with a calculator
https://www.youtube.com/watch?v=6Pbzq322RzU
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Answers
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Using proportion (unitary method)
https://corbettmaths.com/2018/11/28/unitary-method-video/
Make sure to check the symbol, to see if you are allowed to use a calculator for each question.
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Answer
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Start of Algebra unit. Simplifying expressions.
https://corbettmaths.com/2013/12/28/collecting-like-terms-video-9/
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Answers
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Solving equations
https://www.youtube.com/watch?v=30S7WxKcPwg
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Answers
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Continued solving equations
https://www.youtube.com/watch?v=30S7WxKcPwg
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Answers
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Substitution
https://corbettmaths.com/2012/08/20/substitution-into-expressions/
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Answers
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Trial and improvement methods
When we say ‘trial and improvement’ we mean having a logical attempt at something, then using the result to figure out where to try next.
Imagine if you’re trying to guess a number with a friend.
You guess 6, your friend says higher. You guess 20, your friend says lower.
You now know you need to pick a number between 6 and 20, you’re best to pick a number right in the middle, this reduces the number of options left as fast as possible, on average.
You say 13, your friend says higher. This makes the number of choices left smaller each time, and is generally the most efficient way to
find a solution.
In the questions below, you are going to pick a number to try as x. Substitute it in, as you have practiced doing, and see if you get the desired answer. If not, fill in the table and then try again!
You can use a calculator.
https://www.youtube.com/watch?v=r_CyAjfTl0E
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Forming expressions and equations
Remember: an equation has an equals sign, an expression does not.
https://corbettmaths.com/2013/04/20/forming-equations-involving-perimeter-or-angles/
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Answers
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Inequalities and numberlines
https://corbettmaths.com/2018/12/17/inequalities-2/
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Solving inequalities
https://corbettmaths.com/2013/05/07/solving-inequalities-one-sign-corbettmaths/
Watch the video, then treat these questions as if the inequality sign were an equals. Notice on question 3 you need to draw your solution on a numberline also.
Answers
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