# how to make types of angles working model – maths tlm model making – diy

In this post we write about making the maths tlm model on types of angles working model in simple and easy manner – maths tlm

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Creating a working model to demonstrate the different types of angles using protractors made from cardboard and color paper is an excellent way to visualize mathematical concepts.

Here’s a step-by-step guide to make this model:

### Materials Needed:

• Cardboard (for the base and protractors)
• Color paper (for covering and labeling)
• Scissors or craft knife
• Glue or hot glue gun
• Markers or pens
• Push pins
• Compass (for drawing circles)
• Ruler

## Video step by step guide on types of angles working model – maths tlm model making – diy

#### 1. Prepare the Base and Protractors

1. Base Preparation:
• Cut a large rectangular piece of cardboard to serve as the base. Cover it with color paper for a neat finish.
2. Full Protractor (360 degrees):
• Draw a full circle on a piece of cardboard using a compass.
• Cut out the circle and divide it into 360 degrees using a protractor and markers.
• Cover the protractor with color paper and mark every 10 degrees clearly.
3. Half Protractors (180 degrees):
• Draw half circles (semicircles) on cardboard using a compass.
• Cut out four half circles.
• Divide each half circle into 180 degrees using a protractor and markers.
• Cover the protractors with color paper and mark every 10 degrees clearly.

#### 2. Label and Attach Protractors

1. Label Protractors:
• Clearly label the full protractor as “360 degrees”.
• Label each half protractor as “180 degrees”.
2. Attach Protractors to the Base:
• Position the full protractor in the center of the base.
• Place the four half protractors around the full protractor, ensuring they are evenly spaced.
• Securely glue each protractor to the base.

#### 3. Demonstrate Different Types of Angles

1. Types of Angles:
• Acute Angle (less than 90 degrees)
• Right Angle (exactly 90 degrees)
• Obtuse Angle (between 90 and 180 degrees)
• Straight Angle (exactly 180 degrees)
• Reflex Angle (between 180 and 360 degrees)
2. Using Push Pins and Color Paper:
• Cut small strips of color paper to represent different angles.
• Use push pins to attach one end of each strip to the center of the protractors.

#### 4. Create and Demonstrate Angles

1. Acute Angle:
• Attach a strip to one of the half protractors, showing an angle less than 90 degrees.
• Mark this strip with a label “Acute Angle”.
2. Right Angle:
• Attach another strip to one of the half protractors, forming a right angle (90 degrees).
• Label this strip as “Right Angle”.
3. Obtuse Angle:
• Attach a strip to one of the half protractors, showing an angle greater than 90 degrees but less than 180 degrees.
• Label this strip as “Obtuse Angle”.
4. Straight Angle:
• Attach a strip to one of the half protractors, showing a straight angle (180 degrees).
• Label this strip as “Straight Angle”.
5. Reflex Angle:
• Attach a strip to the full protractor, showing an angle greater than 180 degrees but less than 360 degrees.
• Label this strip as “Reflex Angle”.

#### 5. Final Touches

1. Secure Push Pins:
• Ensure all push pins are securely attached and strips of color paper are properly aligned.
• Use markers to add details and clearly label each type of angle on the base.
• Optionally, add arrows or lines to emphasize the angle measurements.
3. Test the Model:
• Move the strips of color paper to demonstrate different angles and ensure they stay in place with the push pins.

### Example Layout:

• Center: Full protractor (360 degrees) with a strip showing a reflex angle.
• Top Left: Half protractor (180 degrees) with a strip showing an acute angle.
• Top Right: Half protractor (180 degrees) with a strip showing a right angle.
• Bottom Left: Half protractor (180 degrees) with a strip showing an obtuse angle.
• Bottom Right: Half protractor (180 degrees) with a strip showing a straight angle.

By following these steps, you can create an effective and interactive working model to demonstrate different types of angles.