Please note: This site contains links to websites not controlled by the Australian Government or ESA. Read more in the Terms of Use.
Triangles
These lessons guide students to discover and then apply the formula for finding the area of a triangle, using the perpendicular height and base.
Additional details |
|
| Year level(s) | Year 7 |
|---|---|
| Audience | Teacher |
| Purpose | Teaching resource |
| Format | Web page |
| Teaching strategies and pedagogical approaches | Explicit teaching |
| Keywords | area, base, height, triangle |
Curriculum alignment |
|
| Curriculum connections | Critical and creative thinking, Numeracy |
| Strand and focus | Measurement |
| Topics | Area, volume and surface area |
| AC: Mathematics (V9.0) content descriptions |
AC9M7M01
Solve problems involving the area of triangles and parallelograms using established formulas and appropriate units |
| Numeracy progression |
Understanding geometric properties (P6)
Understanding units of measurement (P9) |
Copyright details |
|
| Organisation | New Zealand Ministry of Education |
| Copyright | © New Zealand Ministry of Education. Creative Commons BY 3.0 NZ. |
Related resources
-
Making triangles
Students study the concept of triangle inequality, which determines if three positive numbers can serve as the side lengths of a triangle. This principle states that a triangle is possible if the largest of the three numbers is smaller than the sum of the other two. To explore this, students experiment with various combinations of three natural numbers.
Resource details -
Circles and cylinders: Year 7 – planning tool
This planning resource for Year 7 is for the topic of Circles and cylinders.
Resource details -
Volume and surface area: Year 7 – planning tool
This planning resource for Year 7 is for the topic of Volume and surface area.
Resource details -
Area and perimeter: Year 7 – planning tool
This planning resource for Year 7 is for the topic of Area and perimeter.
Resource details -
Volume and its units of measurement
This resource for both teachers and students focuses on finding the volume of rectangular prisms, the units of volume and capacity, and understanding the connection between volume and capacity.
Resource details -
Don’t ditch the boat
Students find fractions of mass and volume.
Resource details -
Pouring problem
This task has been designed to stimulate learners' curiosity and explain what they know about capacity and volume.
Resource details -
All wrapped up
What is the largest cuboid you can wrap in an A3 sheet of paper? This is a challenging problem, but suits a variety of working styles.
Resource details