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Advantages of Streaming (grouping children according to ability)Some schools separate students according to their academic ability Teachers can work at the right speed for their students Teachers can plan more suitable lessons High-level groups may progress faster Lower level groups can benefits from a slower pace Some teachers and parents support streaming for these reasons Disadvantages of Streaming Grouping by ability may have a negative impact on students Children do not want to be seen as less intelligent than others Streaming could damage students’ self esteem They may lose motivation Students from wealthier families tend to be better prepared Children from poorer families may receive less support from parents Mixed ability classes encourage everyone to achieve their potential. Environment Global warming Gases such as carbon dioxide trap heat from the sun This causes global temperatures to rise This process is known as the greenhouse effect Human activity is a major factor in the rise of the greenhouse gases Factories and vehicles produce emissions and exhaust fumes Many developing countries are becoming industrialized The number of cars on our streets is growing Cheap air travel is allowing more people to fly Effects of Global Warming Global warming will have a significant impact on our planet Rising temperature will cause melting of the polar ice caps Sea levels will rise We can expect more extreme weather conditions Flooding and droughts may become more common Impacts of humans on the environment The increasing world population is putting pressure on natural resources Fossil fuels like oil and gas are running out We are destroying wildlife habitats We have cut down enormous areas of rainforest This has led to the extinction of many species of animals and plants Solutions to environment problems Governments could introduce laws to limit emissions from factories They should invest in renewable energy from solar, wind or water power They could impose “green taxes” on drivers and airlines companies Government campaigns should promote recycling Natural areas and wild animals should be protected Individuals should also try to be greener We should take fewer flights abroad for holidays We should take public transport rather than driving We should choose products with less packaging We should recycle as much as possible Waste/rubbish The amount of waster we produce has increased This problem is a result of our consumer culture Products are not made to last If something breaks, we throw it way and buy a new one Advertisers encourage is to buy the newest fashions Packaging is an important part of selling Most foods are sold in non-biodegradable plastics packaging The amount of household waste is growing This waste ends up in landfill sites Litter People do not think about the consequences of dropping rubbish They assume that somebody is pad to clean the streest Plastic packaging does not break down easily Most of the litter seen on streets is fast food packaging Date: 2015-12-11; view: 1148
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