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National flags
Students are shown a variety of flags and, through questioning, investigate the shapes, angles and lines within each.
Additional details | 
                            |
| Year level(s) | Year 3 | 
|---|---|
| Audience | Teacher | 
| Purpose | Teaching resource, Student task | 
| Format | Web page | 
| Teaching strategies and pedagogical approaches | Mathematics investigation | 
Curriculum alignment | 
                            |
| Strand and focus | Space | 
| Topics | Angles and geometric reasoning | 
| AC: Mathematics (V9.0) content descriptions | 
                                         
                                            AC9M4M04
                                            
                                             
                                Estimate and compare angles using angle names including acute, obtuse, straight angle, reflex and revolution, and recognise their relationship to a right angle  | 
                            
| Numeracy progression | 
                                            Understanding geometric properties (P4)
                                             | 
                            
Copyright details | 
                            |
| Organisation | NRICH  | 
                            
| Copyright | © 1997-2022 University of Cambridge. Free-for-education material.  | 
                            
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