Mathematics / Year 4 / Measurement and Geometry / Geometric reasoning

Curriculum content descriptions

Compare angles and classify them as equal to, greater than, or less than, a right angle (ACMMG089)

Elaborations
  • creating angles and comparing them to a right angle using digital technologies
General capabilities
  • Literacy Literacy
  • Numeracy Numeracy
  • Critical and creative thinking Critical and creative thinking
ScOT terms

Obtuse angles,  Reflex angles,  Right angles,  Acute angles

Video

Right angle or acute angle?

What's the difference between a right angle and an acute angle? Find out!

Video

Mixed Up Maths, Ep 7: Daredevil geometry

What does a daredevil jumps rider need to know about geometry? Find out as we discover angles for take off and for landing. But before we do that sit down for some angles basics! A good place to start is angles of turn through a circle from a 1/4, 1/2, 3/4, all the way to one full turn. See how many each represents as an angle.

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Angles are the primary structural component of many shapes: Multi-age 3–6 Year A – Unit 10

This 2-week unit develops the big idea that angles are the primary structural component of many shapes.

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Angles: types of angles: Part 1

In this lesson, students explore ways to compare angles and recognise the names of different types of angles, including right, acute, obtuse, straight, reflex and revolution. This is the first in a series of two lessons.

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Angles: chalk designs: Part 2

In this lesson, students create their own chalk designs in the style of a stained-glass window that includes different types of angles. This is the second lesson in a series of two lessons.

Online

Measures of turn (angles): Year 4 – planning tool

This planning resource for Year 4 is for the topic of Measures of turn (angles). Students develop their understanding that an angle is a figure formed by two rays sharing a common end point, called the vertex of the angle.

Interactive

Sustainable transport – sustainability action process (Years 3–6)

This sustainable transport learning resource will guide students through an extended school based investigation. Students will develop and implement a chosen sustainability action and then evaluate and reflect on their success and their learning.

Downloadable

Measurement: Foundation to Year 9

This comprehensive resource describes the progression of measurement ideas. The resource demonstrates examples of relevant teaching strategies, investigations, activity plans and connected concepts in measurement including teaching and cultural implications.

Interactive

Sites2See: Space and Geometry for Primary

Selected links to online resources that can support the teaching and learning of geometry for primary-aged students.

Interactive

Kitchen gardens – sustainability action process (Years 3–6)

This resource guides students through an extended school-based or local investigation focussed on kitchen gardens using the five-step sustainability action process. The resource supports the investigation of a real-world issue or problem. Students develop and implement a chosen sustainability action and then evaluate and ...

Interactive

Waste and materials – sustainability action process (Years 3–6)

This resource guides students through an extended school-based or local investigation focussed on waste and materials using the five-step sustainability action process. The resource supports the investigation of a real-world issue or problem. Students develop and implement a chosen sustainability action and then evaluate ...

Online

Primary mathematics: games, simulations and modelling

These seven learning activities, which focus on 'games, simulations and modelling' using a variety of tools (software) and devices (hardware), illustrate the ways in which content, pedagogy and technology can be successfully and effectively integrated in order to promote learning. In the activities, teachers use games, ...