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SIR S – Describes asexual reproduction as reproduction where there is no fusion of gametes, and offspring are genetically identical to parents – Well.

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Presentation on theme: "SIR S – Describes asexual reproduction as reproduction where there is no fusion of gametes, and offspring are genetically identical to parents – Well."— Presentation transcript:

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2 SIR S – Describes asexual reproduction as reproduction where there is no fusion of gametes, and offspring are genetically identical to parents – Well presented information I – Needs to define asexual reproduction – Need to put into own words

3 What is this? Why is it this shape? What does it do?

4 Objective By the end of this lesson I will be able to… Outcome In order to meet the objective… Explain the way plants disperse seeds and the adaptations necessary All pupil List and explain the various methods of seed dispersal (C grade) Most Pupils Write a hypothesis and collect reliable data of seed length and time to fall(B grade) Some Pupils Plot an accurate graph of results with range of scatter shown (A/A*grade) What we are learningHow we are learning Seed Dispersal 1

5 Seed dispersal Seeds are dispersed in many different ways: Wind Explosion Water Animals Birds Scatter

6 Objective By the end of this lesson I will be able to… Outcome In order to meet the objective… Explain the way plants disperse seeds and the adaptations necessary All pupil List and explain the various methods of seed dispersal (C grade) Most Pupils Write a hypothesis and collect reliable data of seed length and time to fall(B grade) Some Pupils Plot an accurate graph of results with range of scatter shown (A/A*grade) What we are learningHow we are learning Seed Dispersal 1

7 Experiment You will design an investigation into seed wing length and time to fall. Decide on factors to be controlled. Collect results in rough at first What is the independent variable? (thing you are changing) What is the dependent variable? (thing you are measuring) What are the control variables? (things that stay the same)

8 Hypothesis What do you predict will happen? As seed length increases by _____, time to fall will ______ by _____ Wing length (mm)Time to fall (s)average , 86, 65, 88,

9 Objective By the end of this lesson I will be able to… Outcome In order to meet the objective… Explain the way plants disperse seeds and the adaptations necessary All pupil List and explain the various methods of seed dispersal (C grade) Most Pupils Write a hypothesis and collect reliable data of seed length and time to fall(B grade) Some Pupils Plot an accurate graph of results with range of scatter shown (A/A*grade) What we are learningHow we are learning Seed Dispersal 1

10 Checklist: Revealing patterns in data E (out of 8 marks) Display your results in a simple table (1 mark) Draw a bar chart/ graph using given axes and scales by your teacher (2 marks) Record and draw a line graph for your results with the help of you teacher (3 marks) Draw a line graph yourself that has some errors in scales and plotting of results (4 marks) Correctly draw a line graph with correctly drawn scales and plotting of results (5 marks) Draw a correct and appropriate line of best fit (6 marks) Draw range bars or displaying data in scatter graphs to indicate spread of data (7 marks) Correctly draw ranges bars and scatter graphs (8 marks)

11 Objective By the end of this lesson I will be able to… Outcome In order to meet the objective… Analyse your results and discuss the hypothesis All pupils Explain the extent to which the hypothesis can account for patterns in data (refer to figures). Use scientific knowledge to conclude if the hypothesis has been supported (Grade B) Most Pupils Suggest how the hypothesis should be modified to account for the data more completely. Suggest extra data needed.(A) Some Pupils Give a detailed account of what extra data should be collected to increase confidence in the hypothesis. (Grade A*) What we are learning Seed dispersal Analysis

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13 Objective By the end of this lesson I will be able to… Outcome In order to meet the objective… Evaluate accuracy and repeatability of results All pupils Use the general pattern of results or degree of scatter between repeats as a basis for assessing accuracy and repeatability (B grade) Most Pupils Explain your judgement of repeatability (reliability) and accuracy with reference to your graph and range bars. Explain outliers (A grade) Some Pupils Consider critically the repeatability of the results, accounting for outliers with reference to equipment or techniques (A*) What we are learningHow we are learning Evaluation

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