# World's Greatest Shave Maths Investigation – Line Up the Coins

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Free | 7 pages (PDF)|Grades: 3 - 4

A mathematics investigation about data, embedded in a real-world context.

This open-ended mathematics investigation has been designed to deepen students’ understanding of data, measurement and financial mathematics.

The scenario involves the school raising money for the Leukaemia Foundation’s World’s Greatest Shave.

Students are tasked with designing a template for coins to be placed on during the fundraising event. They will test how many coins fit on various templates that are included in the investigation and use this information to create their own.

Once the templates are complete, hold the fundraiser at the school. Students record the number of coins collected and calculate the total value.

This teaching resource includes:

• a detailed description of the investigation for students
• tally sheets for determining the amount of coins that fit on each template
• a blank template
• three designed templates

You might also like to check out our step-by-step guide to school charity fundraising.

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#### Australian Curriculum alignment

• ACMMG061

Measure, order and compare objects using familiar metric units of length, mass and capacity

• ACMSP068

Identify questions or issues for categorical variables. Identify data sources and plan methods of data collection and recording

• ACMMG084

Use scaled instruments to measure and compare lengths, masses, capacities and temperatures

• ACMSP095

Select and trial methods for data collection, including survey questions and recording sheets

• ACMSP069

Collect data, organise into categories and create displays using lists, tables, picture graphs and simple column graphs, with and without the use of digital technologies

• ACMSP096

Construct suitable data displays, with and without the use of digital technologies, from given or collected data. Include tables, column graphs and picture graphs where one picture can represent many data values

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