Bivariate data and scatter plots builds confident Year 8 mathematical reasoning. Work from the information given, choose a suitable method, show each step and check that the answer is sensible.
Example
A worked bivariate data and scatter plots example should show the method clearly before giving a final answer.
Key terms
Method:
A planned set of mathematical steps.
Reasoning:
Explaining why a method is suitable.
Check:
Testing whether an answer is sensible.
Questions
1. Bivariate data and scatter plots: check 1 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
2. Bivariate data and scatter plots: check 2 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
3. Bivariate data and scatter plots: check 3 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
4. Bivariate data and scatter plots: check 4 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
5. Bivariate data and scatter plots: check 5 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
6. Bivariate data and scatter plots: check 6 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
7. Bivariate data and scatter plots: check 7 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
8. Bivariate data and scatter plots: check 8 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
9. Bivariate data and scatter plots: check 9 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
10. Bivariate data and scatter plots: check 10 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
11. Bivariate data and scatter plots: check 11 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
12. Bivariate data and scatter plots: check 12 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
13. Bivariate data and scatter plots: check 13 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
14. Bivariate data and scatter plots: check 14 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
15. Bivariate data and scatter plots: check 15 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
16. Bivariate data and scatter plots: check 16 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
17. Bivariate data and scatter plots: check 17 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
18. Bivariate data and scatter plots: check 18 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
19. Bivariate data and scatter plots: check 19 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
20. Bivariate data and scatter plots: check 20 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
21. Bivariate data and scatter plots: check 21 — which approach shows clear mathematical reasoning?
Identify the information, choose a method, calculate carefully and check the result
Guess an answer without working
Ignore units and conditions
Use an unrelated rule
Answer key (parent copy)
1. Identify the information, choose a method, calculate carefully and check the result
2. Identify the information, choose a method, calculate carefully and check the result
3. Identify the information, choose a method, calculate carefully and check the result
4. Identify the information, choose a method, calculate carefully and check the result
5. Identify the information, choose a method, calculate carefully and check the result
6. Identify the information, choose a method, calculate carefully and check the result
7. Identify the information, choose a method, calculate carefully and check the result
8. Identify the information, choose a method, calculate carefully and check the result
9. Identify the information, choose a method, calculate carefully and check the result
10. Identify the information, choose a method, calculate carefully and check the result
11. Identify the information, choose a method, calculate carefully and check the result
12. Identify the information, choose a method, calculate carefully and check the result
13. Identify the information, choose a method, calculate carefully and check the result
14. Identify the information, choose a method, calculate carefully and check the result
15. Identify the information, choose a method, calculate carefully and check the result
16. Identify the information, choose a method, calculate carefully and check the result
17. Identify the information, choose a method, calculate carefully and check the result
18. Identify the information, choose a method, calculate carefully and check the result
19. Identify the information, choose a method, calculate carefully and check the result
20. Identify the information, choose a method, calculate carefully and check the result
21. Identify the information, choose a method, calculate carefully and check the result