12 January January January 2016 Prepared By: Mr. Raafat Haroun 1

12 January January January 2016 Prepared By: Mr. Raafat Haroun 2

12 January January January 2016 Prepared By: Mr. Raafat Haroun 3

12 January January January 2016 Prepared By: Mr. Raafat Haroun 4 Grade Levels: Subject: Duration: Math 90 minutes

12 January January January 2016 Prepared By: Mr. Raafat Haroun 5 This lesson is talking about what the percentage is and how do we apply this concept in calculating some problems related to percentage. Then, ask the students to make a task related to the lesson

12 January January January 2016 Prepared By: Mr. Raafat Haroun 6 By the end of the lesson the student must be able to: Realize the concept of percentage Convert from percentage into fraction / decimal Convert from percentage into fraction / decimal Convert from fraction / decimal into percentage Convert from fraction / decimal into percentage calculate the percentage of an amount with respect to its total. calculate the percentage of an amount with respect to its total. Use the pie chart to represent the application of percentage in life Use the pie chart to represent the application of percentage in life

12 January January January 2016 Prepared By: Mr. Raafat Haroun 7 School Book School Book ml ml ml ml

12 January January January 2016 Prepared By: Mr. Raafat Haroun 8 Time Capsule This is a good exercise for practicing reaching consensus and for team members to understand each others' values. Have each member of the team list five items that they feel should be included in a time capsule that will be opened by another civilization in five thousand years' time. Each member of the team should then explain the reasons for their choice. The team then reaches consensus on which five objects should be included in the time capsule. Ask each team to write their final choice of items on a flipchart and discuss and defend their choices with the whole group. 10 min

12 January January January 2016 Prepared By: Mr. Raafat Haroun 9 20 min

12 January January January Prepared By: Mr. Raafat Haroun

What is this sign?!!!!!! 12 January January January Prepared By: Mr. Raafat Haroun

It’s a ratio, and its 2 nd term is January January January Prepared By: Mr. Raafat Haroun

Oh, thank you.. But What about its name? 12 January January January Prepared By: Mr. Raafat Haroun

Its name is 12 January January January Prepared By: Mr. Raafat Haroun

Can I convert from fractions into decimals and vice versa? 12 January January January Prepared By: Mr. Raafat Haroun

Sure!! Let us see 12 January January January Prepared By: Mr. Raafat Haroun

We can put ¾ in the form of decimal as following: following: 12 January January January Prepared By: Mr. Raafat Haroun

Can i put in the form of fraction? form of fraction?Simplifying Sure my dear, means 12 January January January Prepared By: Mr. Raafat Haroun

But! Can I convert ¾ Into percentage? Sure, and that by multiplying by 100 multiplying by 100= 12 January January January Prepared By: Mr. Raafat Haroun

Can you tell me about the rules of applications of percentage in life Sure my dear 12 January January January Prepared By: Mr. Raafat Haroun

Application s % ProfitLoseDiscount 12 January January January Prepared By: Mr. Raafat Haroun

The loss = cost price – selling price The profit = selling price – cost price 12 January January January Prepared By: Mr. Raafat Haroun

Percentage of profit Percentage of profit = profit c.p. X 100% 12 January January January Prepared By: Mr. Raafat Haroun

Percentage of loss Percentage of loss = loss c.p. X 100% 12 January January January Prepared By: Mr. Raafat Haroun

Example : Example : 12 January January January Prepared By: Mr. Raafat Haroun

Ahmed bought some goods for LE January January January Prepared By: Mr. Raafat Haroun

And sold them for LE January January January Prepared By: Mr. Raafat Haroun

Find Find His percentage of profit. His percentage of profit. 12 January January January Prepared By: Mr. Raafat Haroun

Solution : Solution : 12 January January January Prepared By: Mr. Raafat Haroun

The profit = selling price – cost price = 5400 – 4800 = LE January January January Prepared By: Mr. Raafat Haroun

= X 100% = 12.5% Then Percentage of profit Then Percentage of profit 12 January January January Prepared By: Mr. Raafat Haroun

Example : Example : 12 January January January Prepared By: Mr. Raafat Haroun

Convert each of the following percentage to a decimal 12 January January January Prepared By: Mr. Raafat Haroun

25% (1) (1) (2) (2) 40% 12 January January January Prepared By: Mr. Raafat Haroun 6.3%

Solution : Solution : 12 January January January Prepared By: Mr. Raafat Haroun

25% =25÷100 =0.25 (1) (1) 12 January January January Prepared By: Mr. Raafat Haroun

(2) (2) 40% = 40÷10 100÷10 = 4 10 = January January January Prepared By: Mr. Raafat Haroun

(3) (3) 6.3% = 6.3 X X 10 = = January January January Prepared By: Mr. Raafat Haroun

(4) (4) 3 3 ∕ 5 % = = January January January Prepared By: Mr. Raafat Haroun

12 January January January 2016 Prepared By: Mr. Raafat Haroun min