Pie Chart Builder

Pie Chart Builder is an intuitive drag-and-drop tool that lets students construct custom pie charts and explore fractions, data displays, and percentages in a hands-on way. Students drag colored circles onto the large pie to build categories, and the chart updates instantly—no calculations required.

How It Works

• Drag colored circles onto the pie to create wedges.
• Click the text under each circle (labeled “Add label”) to rename categories.
• A live legend on the right shows each category’s label along with counts and percentages.
• Click the title above the chart (labeled “Add title”) to give your chart a custom name.
• Press Reset to clear the chart and start over with new data.

What Students Learn

• Understanding fractions as parts of a whole
• Representing data visually with pie charts
• Converting between counts, fractions, and percentages
• Interpreting and comparing categories in a data set

Perfect For

• Data management and statistics units
• Fraction lessons and review
• Classroom surveys (favourite foods, pets, sports, etc.)
• Project-based learning and math centers

This drag-and-drop manipulative makes abstract ideas concrete, gives teachers flexibility to model many different data sets, and helps students see math come alive through color, shape, and interaction.