Bar Graphs

Bar graphs are a versatile data representation that builds on picture graph understanding while introducing scale and precise comparison.

• Framework: Montessori
• Unit: Mathematics
• Learning area: Data & Graphing
• Level: Ages 5-6

Objectives

• Create and read bar graphs
• Compare categories using bars
• Interpret data from graphs

Materials

• Graph paper
• Colored pencils
• Data sets (surveys, experiments)
• Ruler

Instructions

1. Collect data: 'How many of each color shoe in our class?' 2. Draw axes on graph paper. 3. Label categories on x-axis. 4. Number y-axis. 5. Draw bars to correct height. 6. Color and label. 7. Answer: 'How many more black shoes than brown?'

Educator tip

Start with scales of 1, then introduce scales of 2 or 5 for larger data sets.

Assessment

Child creates accurate bar graphs and interprets data to answer questions.

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