Pictographs and Bar Graphs Flashcards

Grade 3 · Math · Flashcards

Key vocabulary and reading strategies for pictographs and bar graphs.

Flashcards

Pictograph: A graph using pictures/symbols to represent data. Each picture = a set amount.
Bar graph: A graph using rectangular bars to compare data across categories.
Key / Legend: Defines what each symbol or color means. Always check it first!
Scale: Numbers along the y-axis of a bar graph that let you read bar heights.
Title: The name of the graph — tells you what the data is about.
Category: Each separate group being compared in a graph.
Reading a pictograph: Count the symbols for a row, multiply by the key value.
1 symbol = 5; 4 symbols = ?: 4 × 5 = 20
1 symbol = 6; half symbol = ?: 3 (half of 6)
Tallest bar in a bar graph: Represents the greatest value.
Shortest bar in a bar graph: Represents the least value.
Finding difference in a bar graph: Subtract the smaller bar value from the larger bar value.
Y-axis: The vertical (up-down) side of a bar graph, where the scale numbers are shown.
X-axis: The horizontal (left-right) side of a bar graph, where category labels are shown.
Why use a graph?: Graphs make it easy to compare data visually at a glance.