Scenarios Print the scenarios and laminate them Divide
- Slides: 11
Scenarios
Ø Ø Print the scenarios and laminate them. Divide the class into groups. Give one scenario to each group to solve. Move around to explore the processes the students used to derive their answers.
Scenario 1 -CA A farm has cows, horses, pigs, goats and sheep. Jackson counted 50 animals. Some of the results are shown in the table: Animal Cow Horse Number 16 13 Pig What percentage were pigs? Goat Sheep 7 6 %
Scenario 2 - CA There are 200 animals on a farm. One-fifth of the animals are sheep and the rest are cattle. 40% of the cattle are calves. How many calves are on the farm. A) 16 B) 24 C) 40 D) 64
Scenario 3 - NC There are 28 people in a park. The ratio of male to female was 5: 2. Two more female came later on to the park. What is the new ratio of male to female. A) 5: 2 Answer: D B) 5: 4 C) 3: 2 D) 2: 1
Scenario 4 -CA 125 different mammals, 400 kinds of birds, 100 reptiles, and 60 amphibians inhabit a typical four mile square patch of tropical rainforest. 1 - How many animals is that altogether? 2 - Draw a table showing the number of different animals. 3 - Write the number of each animal as a fraction. Simplify your answer. 4 - What percentage of animals are reptiles? 5 - What percentage of animals are amphibians? 6 - What percentage of animals are mammals? 7 - Draw a suitable graph showing the number of different animals.
Scenario 5 -NC Rainforests produce about 20% of all the oxygen in the world. 1 - Write 20 % as a fraction. Simplify your answer. 2 - What percentage of oxygen is not produced by rainforest?
Percentage of an amount
Calculate an amount as a percentage of a total If 685 animals inhabit a typical four mile square patch of tropical rainforest and 125 are mammals , what percentage is this? Rule: 1 - Write the amount over the total as a fraction 2 - Multiply by 100. Amount Total Multiply by 100
Calculate an amount as a percentage of a total If 685 animals inhabit a typical four mile square patch of tropical rainforest and 400 animals are birds , what percentage is this? Rule: 1 - Write the amount over the total as a fraction 2 - Multiply by 100. Amount Total Multiply by 100
Numeracy Scenarios Prepared by Zani Alam For the Science faculty Term 1 2017
