This is a lesson plan for grade 4 students to recall what angles are and classify them into three categories: acute, obtuse, or right.

1. Grade: 4 Subject: Types of Angles Period: 1st
Objectives: Students will be able to:
- Identify different types of angles
- Classify an angle as acute, obtuse, or right
Prerequisites: Define an angle
Skills: Model- Classify- Color- Sing a song- Observe
Strategies: Modeling- Hands on activity
Materials: Play dough- Worksheets (1) & (2)- Coloring
pencils
Procedure:
Recall what angles are and find angles in classroom.
Compare different angles to deduce types of angles.
Activity 1: Sing the angles song to stress on types of angles.
Activity 2: In groups of 4, each member will pick 1 type of an angle and
will use play dough to model an angle of the chosen nature.
Practice : Solve worksheet (1) while teacher will pass and check students’
work.
Help students in accomplishing their task.
Assessment: Color worksheet (2) only the first figure.
Closure: Model the angles by opening and closing students arms
Homework: Continue worksheet (2)
Notes:

2. Worksheet (1)

3. Name:_______________ Tracing
Angles
Color 3 angles of each type by the
code.
Color Code
Obtuse angle= blue
Acute angle= red
Right angle= green
Worksheet (2)