Composition - Individual Compositions
Everyone Composes their own piece.
Everyone Composes their own piece.
Objective (Teaching Point): to know that percentage is the number of parts per 100 to recognize equivalent percentages, fractions and decimals to convert between fractions and decimals Explain that “percent” means “out of 100”. Translated to Swedish is procent You can write any percent as a fraction with a denominator of 100. With the class convert 19% to a fraction. 19% = 19/100 Try a few examples of converting both percents to fractions and fractions to percents together with the class. Practice: In pairs have the class work on problems: KS3: Pg. 234 - 235
Objective (Teaching Point): Introduction to proportional division Starter: 1. If a bar of chocolate costs 5kr; how much is the cost of: 2 bars 5 bars 10 bars 11 bars 2. My 3 friends and I decide to go and watch a basketball game. The four tickets would cost 600kr. After a week, 5 other friends of us decided to come with us to the game. By that time the prices increased by 5% per ticket. How much will they pay altogether? Lesson: Introduction to Proportional Division Steps: 1. Add the numbers in the ratio to find the total number of parts (ex. 2:5 = 7) 2. Divide the amount by the total number of parts to find the size of each part 3. Multiply the size of one part by the number of parts as given in the ratio 4. Check that the resulting amounts add up to the given total. Ex. 64 girls and boys have planned for a movie. They are in a ratio of 6 girls to 2 boys. How many girls are there? Explain the method: 1. Add the parts: 6 + 2 = 8 2. Divide amount by total parts: 64 : 8 = 8 3. Multiply: 8 x 6 = 48 boys, 8 x 2 = 16 girls 4. 48 boys + 16 girls = 64 (CHECK) Work in Class: