# Unit: 2-D Shape and Symmetry

## Lessons:

15 lessons

### Shape and symmetry: To compare and order angles

In this lesson, you will be revising the names of different types of angles. We will be looking at what angles have in common with each other and what makes them different. We will estimate angles and learn the properties of various types of angles. We will use angle makers to experiment with different amounts of degrees and investigate the angles around us.

### Shape and symmetry: To identify right angles

In this lesson, you will recap on the names of different types of angles. We will be looking specifically at right angles today and exploring where they can be found. We will learn what makes an angle a right angle. We will make right angle checkers to help us investigate. We will also be making predictions about the number of right angles in a variety of different shapes.

### Shape and symmetry: To identify acute and obtuse angles

In this lesson, you will recap on the names of different types of angles. We will be looking specifically at acute and obtuse angles today and exploring where they can be found. We will learn what makes an angle acute or obtuse and how they are different. We will learn to estimate and order angles and how to draw examples of both acute and obtuse angles, using the knowledge we have. We will practise with accuracy and precision when drawing angles.

### Shape and symmetry: To investigate angles within shapes

In this lesson, you will recap on the names of different types of angles. We will be looking specifically at angles within different shapes. You will be drawing and investigating different shapes containing a variety of angles. Pupils investigate a series of statements about the angles within shapes, justifying whether they are always, sometimes or never true.

### Shape and symmetry:Identify angles within shapes

In this lesson, you will recap on the names of different types of angles.

### To compare and classify 2D shapes

In this lesson, you will be revising the names of different types of 2D shapes. We will be looking at what these shapes have in common with each other and what makes them different. We will learn the difference between regular and irregular shapes and use correct mathematical language to discuss their features. We will also use prior knowledge about types of angles to help describe the properties of a shape.

### To compare and classify quadrilaterals

In this lesson, you will be revising the names of different types of quadrilateral shapes. We will be looking at what they have in common with each other and what makes them different. We will learn the properties of various types of quadrilateral shapes and use correct mathematical vocabulary to describe the features and properties of each.

### To identify and classify right angled and equilateral triangles

In this lesson, you will be revising the names of different types of triangles. We will be looking at what they have in common with each other and what makes them different. We will learn the properties of various types of triangles and use correct mathematical vocabulary to describe the features and properties of each. We will focus on right angled and equilateral triangles.

### To Compare and Classify Isosceles and Scalene Triangles

In this lesson, you will be revising the names of different types of triangles. We will be looking at what they have in common with each other and what makes them different. We will learn the properties of various types of triangles and use correct mathematical vocabulary to describe the features and properties of each. We will focus on scalene and isosceles triangles.

In this lesson, you will recap on the knowledge you have developed on quadrilaterals. You will investigate different types of quadrilateral shapes and solve problems based on their properties. You will be drawing, investigating and justifying your ideas about different shapes.

### To identify lines of symmetry in 2-D shapes

In this lesson, you will be revising the names of different types of 2D shapes. We will begin to explore what symmetry is and how to recognise lines of symmetry in 2-D shapes. We will develop strong mathematical language about shape and we will investigate lines of symmetry in a variety of quadrilaterals and triangles.

### To identify lines of symmetry in a pattern

In this lesson, you will be learning to recognise patterns and how they repeat. We will continue to explore what symmetry is and how to recognise lines of symmetry in 2-D shapes and patterns containing these shapes. We will continue to develop strong mathematical language about shape, symmetry and pattern.

### To complete a simple symmetrical figure

In this lesson, you will deepen your understanding of symmetry by creating your own symmetrical figures and completing others that have been started. We will learn how to check our work to ensure that lines of symmetry are accurate and we will use the correct vocabulary to explain our figures.

### To investigate a problem using symmetry (Part 1)

In this lesson, you will recap on the knowledge you have developed on symmetry. You will investigate different types of shapes and patterns and use our new knowledge to solve problems based on their lines of symmetry. You will be drawing, investigating and justifying your ideas.

### To investigate a problem using symmetry (Part 2)

In this lesson, you will further develop the knowledge you have gained on symmetry. You will investigate different types of shapes and patterns and use our new knowledge to solve problems based on their lines of symmetry. You will be drawing, investigating and justifying your ideas.