SHS3 Additional Mathematics · Semester 2, Week 10
Organising and Representing and Interpreting Data
Full lesson notes coming
Notes for this lesson are being prepared. The curriculum details below are complete and ready to use for your planning.
Curriculum details
- Strand
- Handling Data (Strand 4)
- Sub-strand
- Organising and Representing and Interpreting Data (4.1)
- Content standard
- 3.4.1.CS.1 - Demonstrate understanding of the nature and strength of relationship between two given variables. 3.4.1.LO.1 Describe the nature and strength of relationship between two given variables using scatter diagram and correlation coefficient. 3.4.1.LO.2 Model and solve problems using regression analysis.
- Indicator
- 3.4.1.LI.2 - Construct a scatter plot using given data sets and use it to describe the relationship between two variables.
- Suggested placement
-
Semester 2, Week 10
(Week 30 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
- Curriculum reference
- NaCCA curriculum document, p. 540
Exemplars (from the NaCCA curriculum)
Talk for Learning, Think-pair-share, Experiential Learning; and Group Work/Collaborative Learning. Learning Experience: Learners in groups discuss correlation. Learners establish that: - Correlation is statistical measurement that is used to describe the nature and strength of relationship between two variables. - Correlation can be used to determine how performance relates to number of hours used to study and also to make decision on the likelihood of rains in the dry season, likelihood of disease outbreak in a community, number of people in the house and amount of water used. Activity 1: Representation of bivariate Data in a scattered plot diagram Learners in pairs recollect how to plot coordinates in the x-y plane. Learners in groups create a bivariate data and construct a scatter plot to illustrate the relationship between the data. Example of Scatter plot
A scatter plot showing weight versus height Activity 3: Learners in groups discuss and describe the nature of relationship between weight and height using the scatter plots. E.g. the scatter plot above shows positive slope indicating a positive correlation between weight and height, i.e. as the weight increases so is the height also increases. NB: this does not however mean that height is causing the weight to increase or vice versa. Teaching and Learning Resources: - ICT tools - Calculators - SHS curriculum Assessment (3.4.1.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding.