Current course
Participants
Yr 5-6 Can sheep count?
Entry Point - Can sheep count?
1. Why are animal life cycles important to us?
2. Are all cows black and white?
3. The X Factor - for cows, pigs, sheep
4. How does nature select which animals can have y...
2. Are all cows black and white?
Web based lesson plan
2. Are all cows black and white?
Todays learning: (WALT)
- Recognise that living things produce offspring of the same kind, but normally offspring vary and are not identical to their parents
Lesson Activities / Tasks
- VIDEO: 'Are all cows black and white?'
- Video Dialog
- Animals of the same type or species are not all the same
- Just like we have different breeds of dogs we also have different breeds of cows sheep pigs
- The cows are all the same species but because they are so different we call them breeds Hereford Aberdeen Angus Friesian Stabiliser Highland
- Domestic animals like sheep pigs and cows have been breed by man to give us all these different breeds
- This breed of cow is a Friesian and is good at producing milk
- This breed of cow is an Aberdeen Angus it is good at producing meat
- You know where calves come from
- A bull and cow mate and 280 days later the cow gives birth to a calf
- If the cow and bull are brown then all the calves are likely to be brown - but not the same brown.... or perhaps with white patches
- Farmers are not too worried about the colour of the calves though
- What do you think farmers want from their cows?
- Well they want lots of meat if the cows are kept for meat
- Or lots of milk if the cow is kept for milking.
- Just like calves with brown parents are not quite the same brown colour
- or piglets in the same litter with the same parents are not all the same
- Not all cows produce the same amount of milk.
- So if a farmer measures how much milk each of his cows produce he can tell which cow produces the most milk
- The calves from the cow which produces more milk will produce more milk
- than calves from cows who produce less milk
- So although the farmer mates all his cows with the bull so they all have calves and produce milk
- he will only keep the calves from the cows who produce the most milk to replace old or sick cows when they stop producing milk
- Those calves from cows who produce less milk will be sold and go for beef.
- By only keeping calves from cows who produce the most milk farmers have breed cows that can produce 20 litres of milk in a day - that's this many cartons of milk in 1 day!!!
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Complete relevant section of pupil workbook.
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Plenary
- Do quiz for first section answers
Resources:
- Video: 'Are all cows black and white?'
- Pupils work book 'Can Sheep read numbers?'
Outcomes: (WILF)
- Explain how even animals with same parents are not exactly the same and will have different characteristics
Teaching notes:
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Last modified: Monday, 25 November 2013, 7:00 PM