# To see the best videos on ratio and proporsion[https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/v/introduction-to-ratios-new-hd-version click here]
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# To see the best videos on ratio and proportion [https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/v/introduction-to-ratios-new-hd-version click here]
# To get the information about simple interest [https://www.mathsisfun.com/money/interest.html click here]
# To get the information about simple interest [https://www.mathsisfun.com/money/interest.html click here]
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# This website suggests some interesting activities such as 'raising funds for a cause', 'tracking spendings and earnings for a time period' and 'business' that could be used while teaching profit and loss. [http://classroom.synonym.com/activities-use-teaching-profit-loss-8468232.html Click here]