Cattle
Digital recorder (optional); OHT, data show, interactive whiteboard or other IT tools to present photograph (optional).
Carrying out the task
This task is intended to be an oral assessment. The intention is to encourage discussion between students so they can interact with and build on others' ideas.
The task can be carried out in small groups or as a class. Opportunity for all students to contribute should be provided.
The teacher asks students the questions on the task sheet and records the responses. The responses can be recorded directly on-line, recorded digitally, or hand-written.
The photograph should be presented in colour and in such a way that all students can see it easily.
The teacher may prompt students to encourage them to further explain their ideas, e.g.:
- Tell me more about that.
- What else do you notice?
- Why do you say that?
Teacher prompt (Question c)
The purpose of Question c) is to investigate students' concept of risk. To what extent do they weigh up the notion of balancing severity with likelihood?
During their discussion, prompt students to think about the big picture, long term impact of a particular event. Encourage them to think about a chain of events set off by one event.
Some prompting questions might be:
- How likely is that to happen?
- What would happen next?
- What effect would that have on the cattle that live there?
The capabilities focus is brought about by the conversations you have and the questions you ask.
Capability: Gather and interpret data
This resource provides opportunities to discuss gathering data from careful observations and the meaning made from these observations.
Science capability: Gather and interpret data (TKI)
Capability: Engage with science
This resource provides opportunities to discuss making predictions about the seriousness of potential issues/problems in a real life situation.
Science capability: Engage with science
What to look for | |
a) | Students notice the main features, e.g., details of the cattle, the surroundings, (immediate and further away) and the weather. |
b) | Students predict a problem or problems that being in this paddock might have on the cattle, e.g., problems caused by limited amount of grass,cold, etc. |
c) |
Students recognise the danger to cattle of lack of access to sufficient food, and the cold. See Diagnostic and formative information for more details.
Students can assess how severe and how likely the risk they suggest is.
|
Nature of science: Participating and contributing | Science knowledge |
When making decisions about environmental issues, it is important to ask questions such as, “What could happen if …..” | Any event affects the environment and what lives there. |
Trial students noticed:
- features of the cattle (e.g., their colour)
- actions of the cattle (e.g., eating)
- features of the landscape (e.g., snow, "cracks" in the snow, mountains/hills, trees)
- the weather (white sky, clouds).
Question b): Identifying problems
The trial students identified a range of possible problems.
- The snow covering the grass is a problem because they could get hungry.
- They might eat snow and starve to death.
- The cows could slip over, so they might hurt themselves.
- They might get too cold because their coats are quite thin, and die.
- If the calves have not yet developed black spots the mothers might lose them, and they might starve.
- One student thought it would be easy for hunters to dress up in white, be invisible to the cows, and therefore it would be easy to shoot them. (Does this student recognise that these are farmed rather than wild animals?)
Close observation is an important skill to develop in science and is an aspect of Capability 1: Gather and interpret data. Noticing what is there is an important first step that may help students think about likely impacts of particular actions or events.
- In this activity, students should be able to observe the photograph closely and give detailed descriptions of what they see. Students may need practice with this. Encourage students to carefully describe what they see, rather than just label it. For example, if students say they can see cattle, ask, “What do they look like? What colour are they? What are they doing?”
- Some students may think of the cattle being in the wild, rather than on a farm. Get students to notice details that would support one or other viewpoint, and then ask,"What do you think now? Why?".
If students are to make accurate predictions of likely consequences they also need knowledge about the particular context. In this context, finding out such things as what adaptations cattle have for surviving cold weather, and a farmer's role in managing their safety, helps students to better assess risks.
Vocabulary
Students need the language to explain cause and effect relationships. Asking “Why do you think that?” can encourage students to form better explanations.
To be able to make informed decisions about environmental issues, students need to develop a sense of probability and risk. One strategy could be to get students to brainstorm all possible consequences, encouraging students to be as creative as they can, and then get the class to debate which are the most likely scenarios and explain why. The class could also debate which would be the most damaging scenarios. Are there any scenarios that appear near the top of both lists? A scenario that is both likely and damaging is serious. Science in the real world is rarely “black and white” and the ability to weigh up and consider various alternatives is an important skill for students to develop.
This task provides opportunities for students to think at a “systems level”, an important skill to science and the environment. Before they can begin to consider how a particular action or event will affect a system they need some understanding of the individual parts of that system. The cattle, the landscape, weather and the farmer could be regarded as parts of a system in this context.
Discussing "what might happen if" particular scenarios are played out can support students to start developing systems thinking.. Students need to think about the scenarios both immediately and into the future, Some examples of "what if" questions in this context are:
- What might happen if there are more snowstorms?
- What might happen to the grass if the snow sits for a week?
- What might happen if the sun comes out?
The following table shows Building Science Concepts books that have a focus on cause and effect.
Living World | Environment | Other |
3 Birds 6 Soil animals 21 Life between the tides 22 Tidal communities 53 Moulds and fungi |
1 Waterways 2 Weathering and erosion 12 Volcanoes 40 Earthquakes 43 Spring 44 Spring is a season 50 Storms 52 The land changes |
8 The Moon 9 Shadows 16 Sand, salt and jelly crystals 23 Fresh food 24 Preserving food 32 Introducing metals 33 Working with metals 34 Parachutes 37 Floating and sinking 38 Understanding buoyancy 42 Marbles 46 Keeping warm 47 Insulation 56 Bread 57 Eggs 58 Ice 59 Bikes |