Multiplication: 2 digit by 2 digit numbers video

The video uses the scenario of a student helping her younger brother with a maths problem. They explore and discuss methods for solving the problem: ‘How many months has a 25 year old been alive?’ We show how prior knowledge is required to know what type of calculation to perform, before exploring and discussing different multiplication strategies that use partitioning. Area model, box model and vertical algorithm methods are then demonstrated.

Access the supporting teaching guide that provides suggestions to follow up video.

Additional details
Year level(s)	Year 4, Year 5
Audience	Student
Purpose	Student task
Format	Video
Teaching strategies and pedagogical approaches	Worked examples, Concrete Representational Abstract model
Keywords	real world maths
Curriculum alignment
Strand and focus	Number
Topics	Multiplication and division
AC: Mathematics (V9.0) content descriptions	AC9M4N06 Develop efficient strategies and use appropriate digital tools for solving problems involving addition and subtraction, and multiplication and division where there is no remainder AC9M5N06 Solve problems involving multiplication of larger numbers by one- or two-digit numbers, choosing efficient calculation strategies and using digital tools where appropriate; check the reasonableness of answers
Numeracy progression	Multiplicative strategies (P7)
Copyright details
Organisation	Education Services Australia
Copyright	© 2023 Commonwealth of Australia, unless otherwise indicated. Creative Commons BY 4.0, unless otherwise indicated.