In this post we write about making of the parallelogram properties maths tlm working model – diy – geometry tlm using cardboard and color paper

#parallelogram #properties #maths #mathsworkingmodel #mathstlm #geometry #tlm

Creating a working model to demonstrate the properties of a parallelogram using cardboard and color paper in a rotatable format can be a great educational tool.

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

### Materials Needed:

- Cardboard (for the base and structure)
- Color paper (for detailing and labeling)
- Brass fasteners (to create the rotatable joints)
- Scissors
- Ruler
- Marker or pen
- Glue or double-sided tape
- Protractor (for measuring angles)

## Video step by step instructions on making of parallelogram properties – maths tlm working model

#### 1. Prepare the Base and Main Structure

**Base Preparation**:- Cut a large piece of cardboard to serve as the base. This will hold your rotating parallelogram structure.

**Parallelogram Shapes**:- Cut four strips of cardboard of equal length. These will form the sides of the parallelogram.
- Ensure the strips are of equal length to maintain the parallelogram properties.

**Corners and Fasteners**:- Use brass fasteners to connect the ends of the cardboard strips together, forming a flexible parallelogram. The fasteners will act as the vertices and allow rotation.

#### 2. Assembly of the Rotatable Parallelogram

**Connect the Strips**:- Attach two strips together at one end using a brass fastener. Do the same for the other two strips.
- Join the free ends of the two pairs of strips using brass fasteners to form a parallelogram. Ensure all connections are secure but allow rotation.

**Mounting on Base**:- Attach the parallelogram structure to the base. Use a brass fastener at one vertex to secure it to the cardboard base, allowing the parallelogram to rotate and demonstrate its properties.

#### 3. Detailing and Labeling

**Color Paper Detailing**:- Cover the cardboard strips with color paper to make the model visually appealing. Use different colors for opposite sides if desired to highlight the properties of the parallelogram.

**Labeling**:- Use a marker to label the sides, angles, and diagonals of the parallelogram. You can also label the properties such as:
- Opposite sides are equal and parallel.
- Opposite angles are equal.
- Consecutive angles are supplementary.
- Diagonals bisect each other.

- Use a marker to label the sides, angles, and diagonals of the parallelogram. You can also label the properties such as:

#### 4. Demonstration of Properties

**Rotational Movement**:- Rotate the parallelogram to show that despite the change in shape, the properties remain constant.
- Highlight how the opposite sides remain parallel and equal in length regardless of the angle of rotation.

**Educational Explanation**:- Explain each property of the parallelogram using the model.
- Demonstrate the relationship between the angles and the sides.
- Use the protractor to measure angles and show that opposite angles are equal and consecutive angles are supplementary.

By following these steps, you can create a functional and interactive working model to demonstrate the properties of a parallelogram.