Summary of Lesson Plan:
Australian Curriculum Links:
Lesson Plan Sequence:
Mathematical Prior Learning:
- Collect numerical, continuous data using internet research;
- Construct a line graph while considering scale, labelling and a title;
- Interpret their line graph and make a prediction based on patterns in the data;
- Understand that a line graph is used to show continuous data that changes ie. Over time.
As a whole group, students discuss the upcoming Commonwealth games and their favourite events. They discuss the concept of winning records and who may win this year. Students are given the task of investigating what the results in an athletics or swimming event may be in 2014.
Together, the class reflects on the previous data displays that have been explored and their uses. Students revisit the use of a line graph (to show changes in continuous data over time). Next, students are required to pick an event from either athletics or swimming and research the gold medal winning results from past Commonwealth Games using the internet and collect their relevant data. Using their data, they create a line graph on grid paper to display their findings and to show changes in the winning results over times ie. The winning 100m times. Students label their line graph and decide on a scale to be used. Students write a statement about their findings and make a prediction for the results in their event in 2014. As a group, students share their findings and discuss the way the information has been presented.
Following the Commonwealth Games students revisit their data sets to check their predictions.
Questioning to extend Working Mathematically focus:
- What is the title for your graph? (Communicating);
- Could this information be presented in a bar graph? Why/why not? (Reasoning);
- Why did you label your graph in that way (horizontal/vertical axis)? (Communicating);
- How does your graph show the information to scale? (Communicating);
- What do you predict the result will be in 2014? (Reasoning);
- What are the advantages of using this type of graph? (Reasoning);
- What does the graph show you about the results over time? (Reasoning).
Integration of Technology:
The internet provides an avenue for students to collect and explore data that otherwise wouldn’t not be available. Although Excel or Word could also be used to construct the line graphs at this stage I have elected to use grid paper to enable students to explore the importance of labelling and scale.
Modifications for Stage 2:
Students will also have the opportunity to utilise the internet for collection of data regarding the Commonwealth Games. However, as Stage 2 are still explore categorical data they will be provided with the task of identifying their own question to investigate around the medal tally, before collecting data and creating either a table or column graph. Ie. In which sport has Australia won the most medals? Which country has won the most gold medals?
- MA2-18SP Selects appropriate methods to collect data, and constructs, compares, interprets and evaluates data displays, including tables, picture graphs and column graphs.
Assessment through informal interview questioning and class discussion as well as through analysis of student’s sample line graph and written statement.
- Internet access – Commonwealth Games Federation website: https://www.thecgf.com/results/
- Grid paper
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