Lines and Angles
OVERVIEW
Students will build on their KS2 skills using rulers and protractors to construct and measure increasingly complex diagrams using correct mathematical notation. This will include three letter notation for angles, the use of hatch marks to indicate equality and the use of arrows to indicate parallel lines. Pie charts will also be studied here to gain further practice measuring and drawing angles. Basic geometric language, names and properties of types of triangles, quadrilaterals and polygons will be introduced this half term. Angle relationships will be built on from knowledge and understanding from KS2 to include the use of parallel lines.
BUILDING ON
Forming and solving linear equations
Addition and Subtraction of decimals
Types of angles
Drawing and measuring angles with a protractor
POWERFUL KNOWLEDGE
- Letter and labelling conventions for geometrical figures
- Accurately work with a protractor
- Identify different types of angle, triangles and polygons up to a decagon
- Interpret and draw pie charts
- Angles facts including vertically opposite angles and angles in parallel lines
- How to calculate the interior angle sum of a polygon
- Construct different types of triangle including SSS, SAS and ASA triangles
LESSON RESOURCES
Constructing, measuring and using geometric notation
Lesson 3 – Interpret Pie Charts
Lesson 5 – Construct ASA and SAS triangles
Lesson 6 – Construct SSS triangles
Lesson 7 – Constructing Polygons
Developing Geometric Reasoning
Lesson 11 – Angles on a Straight Line
Lesson 12 – Vertically Opposite angles
Lesson 13 – Angles in Triangles
Lesson 14 – Angle Problems using properties of Triangles
Lesson 15 – Triangle Venn Problems
Lesson 16 – Angles in Quadrilaterals
Lesson 17 – Investigate angles in parallel lines
Lesson 18 – Understand and use angles in parallel lines
Lesson 19 – Find and use angle sum of any polygon