Tag Archives: rpahlevanlumath9

how to create a budget activity – math 9

Posted on by under Grade 9, Math 9

List three things you spend money on each month that would be fixed expenses.

  1. Rent/Mortgage for your house
  2. Insurance (ex. Car insurance)
  3. Utilities (ex. Electricity, water, etc)

List three things you spend money on each month that would be variable expenses.

  1. Food
  2. Clothing
  3. Recreational/Leisure activities

If you needed to save some money, how could you change your spending?

You could change your spending by altering your budget. You could review your spendings per month and limit some variable expenses (i.e. Not going shopping every weekend) so that you can save more money for whatever you may need it for.

How much money could you save in a month without giving up too much?

You could decide that you will save a small percentage of your monthly salary(incoming money), so that you are saving money while also leaving yourself money for your fixed and variable expenses.

 

 

 

 

 

 

what i learned this week – exponent laws

Posted on by under Math 9

the week of oct 24th, 2016:

The skill that we focused on the most this week is learning exponent laws

challenges and achievements:

I didn’t know any of the laws before the lessons, so the concept was new to me. I found that the laws were not very complicated and were easy to learn and follow along with. While doing the homework, I noticed that I had memorized every almost every exponent law/rule

visual: some of the exponent laws that I learned this week

rule : when multiplying powers with the same base, you add the exponents

explanation : when you are multiplying powers with the same base, you add all the exponents together to give you a sum which will be the new exponent for the one base

3^2\cdot3^4 =3^{2+4}

= 3^6

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rule : when the exponent of a power is zero, the value of the power is one (as long as the base is not zero)

explanation : when your power has an exponent of 0, the value of the equation is 1. The only time that this rule doesn’t work is when the base is zero.

4^3\div4^3

= 4^{3-3}

= 4^0=1

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rule : when a product is raised to an exponent, you can rewrite each number in the product with the same exponent 

explanation : when you have a product and it is raised to an exponent, you simply rewrite each number that the product contains with the same exponent

(3\cdot2)^2

= (3\cdot2)(3\cdot2)

= 3^2\cdot2^2

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rule : to raise a power to a power, multiply the exponents

explanation : when you have to raise a power to a power, you take the two exponents and multiply them and then you use that protect as the new exponent to your base

(2^4)^5

= (2^4)(2^4)(2^4)(2^4)(2^4)

= 2^{4+4+4+4+4}

= 2^{20}

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