how to make working model to display various types of graphs

Creating a working model to display various types of graphs (line graph, pie chart, histogram, pictograph) on a rotating sky wheel can be an engaging and interactive project for teaching mathematical concepts.

Here’s a step-by-step guide to help you build this model using cardboard, color paper, and chopsticks.

Materials Needed:

1. Cardboard (for the wheel and base)
2. Color Paper (for graphs and decoration)
3. Chopsticks (for the rotating mechanism)
4. Glue or Hot Glue Gun (for assembly)
5. Scissors and Cutter (for cutting cardboard and color paper)
6. Markers or Paint (for labeling and decoration)
7. Brass Fastener (for the pivot point of the wheel)
8. Ruler and Compass (for accurate measurements)

Video Steps to Build the Types of Graphs Working Model:

1. Create the Base:
• Cut a large rectangular piece of cardboard for the base. This will support the entire model.
• Cut two triangular supports from the cardboard and attach them vertically to the base using glue. Ensure they are positioned to hold the wheel in the middle.
2. Create the Sky Wheel:
• Draw and cut out a large circle from the cardboard. This will be the sky wheel where the graphs will be displayed.
• Divide the circle into equal segments (like slices of a pie) to represent different types of graphs.
3. Prepare the Graphs:
• Line Graph: Use color paper and markers to draw a line graph on one segment.
• Pie Chart: Cut pieces of color paper into wedges and glue them onto another segment to form a pie chart.
• Histogram: Draw and cut rectangular bars from color paper and arrange them on another segment to create a histogram.
• Pictograph: Draw symbols or shapes on color paper and arrange them in another segment to form a pictograph.
• Decorate and label each segment accordingly.
4. Attach the Graphs to the Wheel:
• Glue each graph to its respective segment on the sky wheel.
• Ensure all graphs are securely attached and neatly displayed.
5. Create the Rotating Mechanism:
• Poke a hole in the center of the sky wheel and the top of the triangular supports on the base.
• Insert a brass fastener through the center of the wheel and the supports. This will act as the pivot point, allowing the wheel to rotate.
• Alternatively, you can use a chopstick as the axle. Push it through the holes in the wheel and supports and secure it with glue or rubber bands.
6. Create Handles for Rotation:
• Attach a chopstick horizontally at the back of the wheel, securing it with glue. This will act as a handle to rotate the wheel.
• Ensure the wheel can rotate smoothly without obstruction.
7. Decorate the Model:
• Use color paper and markers to decorate the base and supports.