Exam Skills – Interpreting Data 07 September 2019 Exam Skills – Interpreting Data Learning outcomes I will be able to: State simple conclusions from tables and graphs State more detailed conclusions (2 or 3 mark questions) Respond appropriately to the command words describe and explain Numeracy Objective Ensure graphs and tables have titles and units. REMEMBER: units are put into brackets. Literacy Objective Correct tense and verb agreement. You must use the correct version of the verb to match the tense. E.g. I see / I saw. I do / I did. Main errors are: We was..... Correct to: We were..... Presentation reminders Underline titles and dates. Include full date annotation. Use a pencil and ruler where appropriate for diagrams and tables. BfL reminders Reminder about phones/headphones given at start of lesson. If phones out after, the teacher will confiscate until the end of the lesson. Maintain a calm, learning environment. No eating, drinking or shouting out.

The perfect CONCLUSION should start: Simple Conclusions The perfect CONCLUSION should start: As __________ increases, _________ _________ Write what the dependent variable is here Choose the right word: increases, decreases or stays the same Write what the independent variable is here

More detailed conclusions As THE NUMBER OF BLADES increases, the OUTPUT VOLTAGE IN VOLTS INCREASES… (1st mark) … up to 4 blades, then increasing the number of blades doesn’t affect the output voltage. (2nd mark) Number of blades

More detailed conclusions As the wind speed increases the power output increases… (1st mark) … up to 14 metres per second where it reaches a maximum power output and stays the same... (2nd mark) … up to 25 metres per second where it drops to zero power output for higher speeds (3rd mark)

More detailed conclusions You could have to write conclusions from graphs as well. As the pH increased the time for no starch to be detected decreased… (1st mark) … up to pH 7.0 where it was 1..5 minutes... (2nd mark) … after pH 7.5 the time increases again (3rd mark)

NEVER use the word IT in a conclusion. More detailed conclusions NEVER use the word IT in a conclusion. As the area increases, it increases. What increases? If there is any doubt you won’t get the mark.

Conclusions Quiz State all conclusions that can be drawn from the graph

Conclusions Quiz State all conclusions that can be drawn from the table

Conclusions Quiz State all conclusions that can be drawn from the graph

Conclusions Quiz State all conclusions that can be drawn from the table

Conclusions Quiz State all conclusions that can be drawn from the table

Conclusions Quiz State all conclusions that can be drawn from the graph

Conclusions Quiz State all conclusions that can be drawn from the graph

Conclusions Quiz State all conclusions that can be drawn from the table

Directly Proportional Data is DIRECTLY PROPORTIONAL if the graph would come out as a STRAIGHT LINE through the origin… Or if the numbers in the table double in both columns 𝑥∝𝑦

Directly Proportional When 10 doubles to 20, 2 doubles to 4 But when 20 doubles to 40, 4 doesn’t double to 8 (it goes to 16) So the data is NOT directly proportional

Directly Proportional

DESCRIBE means say WHAT is happening Describe and Explain DESCRIBE means say WHAT is happening EXPLAIN means say WHY it is happening This type of question DOES NOT need any science knowledge because you just say what the graph, table or diagram shows. EASY This type of question DOES need science knowledge. EASY… if you’ve revised.

Describe and Explain Describe the differences between the two people Explain the differences between the two people

Describe and Explain Describe the trend shown in the graph Explain the trend shown in the graph

Describe and Explain Describe the trend shown in the graph Explain the trend shown in the graph

Describe and Explain Describe the trend shown in the graph Explain the trend shown in the graph