Measurement and shapes
Build and connect the representations and methods in measurement and shapes.
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Before you begin
Build and connect the representations and methods in measurement and shapes.
Learning goals
- Find a rectangle's missing dimension from its area or perimeter
- Find a square's side length from its area or perimeter
- Calculate the area of a plane figure
- Calculate the length of a plane figure's complete boundary
- Write a three-point name for a marked angle
- Identify a marked opening from a three-point angle name
- Measure an angle in degrees
- Draw an angle of a given size
- Identify line-symmetric figures
- Test proposed lines of symmetry
- Complete a symmetric figure on a square grid
- Identify solids from their two-dimensional sketches
- Construct geometric figures from stated conditions
- Identify nets which form a specified solid
- Identify the solid formed by a given net
- Draw a rectangle with specified unequal sides
- Draw a square with a specified side
- Use side and angle properties of rectangles and squares
Syllabus statements covered
- finding one dimension of a rectangle given the other dimension and its area/perimeter
- finding the length of one side of a square given its area/perimeter
- finding the area and perimeter of composite figures made up of rectangles and squares
- using notation such as ∠ABC and ∠a to name angles
- measuring angles in degrees
- drawing an angle of given size
- properties of rectangle and square, excluding diagonal properties
- drawing rectangles and squares
- identifying symmetric figures
- determining whether a straight line is a line of symmetry of a symmetric figure
- completing a symmetric figure with respect to a given line of symmetry on square grid
- identifying 2D representations of • cube • cuboid • cone • cylinder • prism • pyramid
- drawing 2D representations of • cube • cuboid • prism • pyramid
- identifying the nets of 3D solids • cube • cuboid • prism • pyramid
- identifying the solid which can be formed by a given net
Lessons
Work through them in order.
About lesson progress
Lesson marks record what you have studied. Checks show understanding separately. Guest marks come from this device.
- Missing sides and composite figuresUse area or perimeter to find a missing length and separate inside joins from the outside boundary.
- Measure and draw anglesName an angle by its vertex, align a protractor and choose the scale starting at zero.
- Symmetry and reflectionsIdentify symmetric figures, test proposed folds and draw a missing reflected half on a square grid.
- Draw solids and read their netsRead solid sketches, draw their edges and test how a net’s faces meet when folded.
- Rectangle and square properties and constructionUse right angles and equal side lengths to draw and check a rectangle or square.