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

#typesofangles #workingmodel #mathstlm #modelmaking #diy #maths #craftpiller

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

**Base Preparation**:- Cut a large rectangular piece of cardboard to serve as the base. Cover it with color paper for a neat finish.

**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.

**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

**Label Protractors**:- Clearly label the full protractor as “360 degrees”.
- Label each half protractor as “180 degrees”.

**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

**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)

**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

**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”.

**Right Angle**:- Attach another strip to one of the half protractors, forming a right angle (90 degrees).
- Label this strip as “Right Angle”.

**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”.

**Straight Angle**:- Attach a strip to one of the half protractors, showing a straight angle (180 degrees).
- Label this strip as “Straight Angle”.

**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

**Secure Push Pins**:- Ensure all push pins are securely attached and strips of color paper are properly aligned.

**Add Details and Labels**:- 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.

**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.