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