Embedded Files
In this part of the topic, we are looking at investigating the statistical relationship between two (bi) Quantitative variables (variate).
This involves following the PPDAC cycle to Plan an experiment to answer a Problem, collect Data and Analyse it to be able to make a Conclusion to answer your question. Get ready to have some fun!
PPDAC cycle : Studyit key tips {Click on underlined words for video and google doc links}
Problem - It's all about relationships -writing questions - Explanatory vs Response Variables (watch to 2:35 only) [also see notes in slides below].
Plan - Designing experiments/data collection methods, planning to minimise sources of variation, Generic Planning Sheet
(writing plan instructions from Liz Sneddon (Ormiston), video on designing experiments from scientific perspective but similar process)
Data - Creating Scatterplots in DESMOS
video instructions on how to create a scatterplot in DESMOS using all data, but creating a line of best fit through the averages of many trials. Also how to compare the lines for two different designs/sets of data.
Desmos Instructions for Bivariate, Physics and Linear Algebra Experiments.webmInstructions for Desmos for Bivariate/Linear Algebra/Physics experiments: GOOGLE DOC with screenshots
Video instructions on using desmos for scatterplots with line of best fit through all the data:
Copy of Scatterplots on Desmos.webmAnalysis - Describing the nature, strength and direction of relationships: [See slides and pdf notes below]
Trend, Association, Relationship strength, Scatter, Outliers, Groups (TARSOG) & key concepts notes with pics
Activities:
Gapminder Activity - GapmindertoolsONLINE - looking at real data about our world to describe relationships (make a copy) - Dataset file to use in nzgrapher
Matching contexts and descriptions to graphs activity pdf and on desmos
Describing Scatterplots video Kahn Academy and practice questions
Conclusion - summarising the relationship and evaluating the experiment. Video from Liz Sneddon, Notes from Nayland College
Generic Mark schedule for both standards
Paper Planes Investigation Document (make a copy or do inside your google classroom)
"I can do" sheet for Linear Algebra and Bivariate Relationships - if you can tick all these things, then you are ready to sit the practice internal!
I can do sheet for Linear Algebra and Bivariate Relationships.pdfPractice Assessment - Coming soon! It's a good idea to do this well so that you can get feedback before sitting the real Assessment.
This will be available in Term 2, 2020.
Example Answer and Video tutorials available later on:)
PING PONG BALL: Practice internal
Within science, the terms Reliability and accuracy have specific meanings. When speaking to the Physics 1.1 standard, the follows definitions are useful:
Accuracy is how likely a result is to be correct
Reliability is how likely it is that multiple results are the same
The image below can be used for further clarification. Further info at this link.
Videos to explain some basic level 1 physics concepts
Physics of bouncing balls:
NZQA STUFF
Standard , Clarifications & Exemplars (useful to see quality of writing needed, but be wary of these, as they don't incorporate both standards)
Report abuse