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Controlled Assessment - Science A GCSE 2014

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Jay Vik

on 27 February 2014

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Transcript of Controlled Assessment - Science A GCSE 2014

Ms Jones want to see if exam results will improve if fresh fruit is given to pupils before their exam.
Controlled Assessment - Science A GCSE 2014

What is the controlled assessment?
The controlled assessment contributes 25% of your final GCSE Core Science grade. It has the same weighting as a module i.e. B1, P1 and C1
Practical and draft graph
Follow this method and copy and complete the table
Paper 2 Briefing
Sketch graph game
One pupil will stand at the front of the class and tell you the results of a practical. they are not allowed to tell you any numbers. Can you sketch the graph.
Which two research sources did you use?
Why is research source 1 good?
Why is research source 2 good?
Which research source is better and why?
Paper 1 top tips
Lesson 7
Paper 2
How many lessons will an ISA take?
Lesson 1 & 2 - Research into context and method (Low control)
Lesson 3 - Write up neat research sheet and briefed on Paper 1 (Low control)
Lesson 4 - Paper 1 exam (high control-EXAM CONDITIONS)
Lesson 5 - Practical and practice graph (Low control)
Lesson 6 - Real graph and briefing on paper 2 (high control)
Lesson 7 - Paper 2 ( high control- EXAM CONDITIONS)
Hypothesis
'The angle of reflection depends upon the angle of incidence'
To repeat or not to repeat that is the question?
Why do you repeat investigations?
What will you do once you repeated your investigation?
What if your got results like these;
22, 22 and 30?
Drawing a table
Writing out the plan
Make sure you list the equipment you will use
a risk assessment
a clear step by step method (someone else should be able to follow the method you write)
Use good English
Table checklist
Good luck
Paper 1

45 minutes
Method
1. Lay the A4 piece of paper flat on the bench
2. Stand the mirror upright on the white paper using the wooden block
3. Using a pencil draw a line across the back of the mirror
4. Draw a dashed line 90 degrees to the mirror and label it normal
5. Put the ray box in the paper and shine the ray at the mirror at the point where the normal meets the mirror at 10 degrees
6. Mark two cross on the incident ray and two on the reflected. Using the crosses draw the incident ray and reflected ray.
7. Measure the angle or reflection and check the angle of incidence is 10 degrees.
8. Repeat steps 6-8 two more times for 10 degrees. Calculate the average angle of reflection and record it in your table.

9. Repeat steps 6-9 for 20, 30, 40, 50, 60, 70, 80 degrees.

Rough graph

Does the x-axis have a suitable scale and is it labeled with a quantity and unit?
Does the y-axis have a suitable scale and is it labeled with a quantity and unit?
Are the point plotted correct to +/-1mm
Is there a suitable line of best fit?

What measurements were difficult to make and why?
Does your graph support the hypothesis?
The angle of reflection depends upon the angle of incidence
Reproducible vs. Repeatable
A measurement is
reproducible
if the investigation is repeated by another person, or
by using different equipment or techniques, and the same results are obtained.

A measurement is
repeatable
if the original experimenter repeats the investigation
using same method and equipment and obtains the same results.
Case study analysis
Hypothesis:
‘The angle of reflection depends upon the angle of incidence’

Based on Jim Harvey's speech structures
CORE SCIENCE GCSE
Physics 1
P1
(25%)
Biology 1
B1
(25%)
Chemistry 1
C1
(25%)
Controlled assessment ISA
(25%)
A proposal intended to explain certain facts or observations.
WWW EBI Mark out of 4
LESSON 1 &2
Context
A car manufacturer have asked girls at Hornsey to produce a guide for drivers to help them position their rear view mirrors.
You need to use the findings of your investigation to tell them were the mirror should be placed and how it should be positioned.
Research
Using the research sources handed out, can you with a partner:
List the equipment you will use
What is the independent variable?
What is the dependent variable?
What are the control variables?
Method you will follow
Risk Assessment (include hazards, risks and control measures)
TEACHER DEMO OF PRACTICAL
Lesson 3
Lesson 1&2
Lesson 2
Lesson 5
Lesson 6
Lesson 6
Copy your draft planning sheet onto the real planning sheet neatly
lesson 4
Units
Complete real graph using data provide
What is the independent variables?
What is the dependent variables?
What is a continuous variable?
What is a categoric variable?
Does this data support your hypothesis?
Is the data reproducible to yours?
Does this data support your hypothesis?
Is the data reproducible to yours?
RESEARCH SOURCE 1
Jim Breithaupt and Lawrie Ryan
http://www.gcsesciencemethods.co.uk/2013/02/reflection-1-plane-mirrors.html
SELF ASSESSMENT
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