Full lesson	Create for a teacher a set of content for giving a lesson, beginning with the lesson plan. Each new block of materials must begin with an H1 heading (other subheaders must be H2, H3, etc). When you describe required pictures, write those descriptions in curly brackets, for example: {A picture of a triangle}
Which subject	Mathematics
What topic	Classifying angles
What length (min)	30
What age group	Year or Grade 4
Class size	20
What curriculum
Include full script
Check previous homework
Ask some students to presents their homework
Add a physical break
Add group activities
Include homework
Show correct answers
Prepare slide templates
Number of slides	5
Create fill-in cards for students
Create creative backup tasks for unexpected moments

Lesson plan

Topic

Classifying Angles

Objectives

• Understand the different types of angles: acute, right, obtuse, and straight.
• Identify and classify angles in various contexts.
• Develop skills to measure angles using a protractor.
• Foster teamwork and communication through group activities.

Materials

• Whiteboard and markers
• Ruler and protractor for each student
• Angle classification worksheet
• Angle sort cards (with visuals of angles)
• Chart paper for group task
• Timer

Grade/Age Group

Year 4

Subject

Mathematics

Class Size

20 students

Lesson Structure

Step Number	Step Title	Length (minutes)	Details
1	Introduction	5	Briefly introduce the topic of angles, discussing their importance in mathematics and everyday life. Present definitions of acute, right, obtuse, and straight angles.
2	Group Discussion	5	Organize students into small groups of 4 to discuss what they know about angles. Encourage them to share examples from their surroundings.
3	Angle Types Activity	10	Distribute angle sort cards to each group. Have students classify the cards into categories based on angle types. Walk around to assist and clarify.
4	Measuring Angles	5	Demonstrate how to use a protractor to measure angles on the whiteboard. Ensure students understand the correct positioning and reading of the protractor.
5	Individual Practice	5	Hand out the angle classification worksheet for individual practice. Students will identify and classify different angles depicted on the worksheet.
6	Review and Wrap-up	5	Recap the lesson by discussing the answers to the worksheets as a class. Check homework privately by going around the room to collect worksheets.

National Curriculum Alignment

• The lesson aligns with the Australian Mathematics Curriculum for Year 4, focusing on the recognition and classification of angles and the use of mathematical tools for measurements.

Homework

• Provide students with additional angle classification problems to complete at home. No presentations will be required in class; instead, the teacher will check the homework in a quiet manner.

Lesson script