Method |
Precise Learning Objective |
Linked |
Question / Activity (Designed for maximum working out) |
Stepping Stones |
Pitstop Check (Thinking Map) |
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Students should be able to explain the effects of temperature, light intensity, carbon dioxide concentration, and the amount of chlorophyll on the rate of photosynthesis. |
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How do each of the following factors affect the rate of photosynthesis: a) temperature, b) light intensity, c) carbon dioxide concentration, d) amount of chlorophyll? Graphing from data and describing the trends. Then link to the explanation.
Use the students to model and pair off every time a collision occurs to show that even as you increase one type of student (molecule) the reaction must stop increasing at some point. |
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Students should be able to measure and calculate rates of photosynthesis (MS) |
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What method can be used to measure and calculate the rate of photosynthesis? Observe the impact of plant growth with varying conditions that will limit the rate of photosynthesis. |
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students should be able to extract and interpret graphs of photosynthesis rate involving one limiting factor (MS) |
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Students should be able to plot and draw appropriate graphs selecting appropriate scale for axes (MS) |
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Students should be able to translate information between graphical and numeric form. (MS) |
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(HT only) These factors interact and any one of them may be the factor that limits photosynthesis. |
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(HT only) What is a limiting factor of photosynthesis? |
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(HT only) Students should be able to explain graphs of photosynthesis rate involving two or three factors and decide which is the limiting factor. |
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(HT only) Students should understand and use inverse proportion ? the inverse square law and light intensity in the context of photosynthesis. |
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(HT) How is the inverse square law important in terms of light intensity in the context of photosynthesis? |
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(HT only) Limiting factors are important in the economics of enhancing the conditions in greenhouses to gain the maximum rate of photosynthesis while still maintaining profit. |
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(HT) How do limiting factors in a greenhouse relate to rate of photosynthesis and profit? |
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* Use data to relate limiting factors to the cost effectiveness of adding heat, light or carbon dioxide to greenhouses. |
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