Grade 1Length, Time and Data1.MD.C.4

Data in Three Groups

Organize data and answer how many more or fewer.

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You can sort and count answers, then show them in a picture graph. Use your how many more thinking to compare the groups.

Favorite fruit: 5 chose apple, 3 chose grapes, 7 chose orange.

Key idea

Each picture stands for one answer. Count a row to find how many. Compare rows to find how many more or fewer.

Why it works

The pictures line up in rows, so the longer row has more. The extra pictures in the longer row show how many more.

Worked example: Reading the graph

Use the graph. How many more children chose orange than grapes? How many children answered in all?
  1. Orange: 7. Grapes: 3. $7 - 3 = 4$ more.
  2. In all: $5 + 3 + 7 = 15$.

Answer: 4 more; 15 in all

For grown-ups: Make a quick picture graph at home: “Which fruit do we like best?” Let each person add one picture.

Practice

Pass with 3 right answers, the last 2 in a row. Each right answer earns 1 XP.

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Sources and further reading

  • Common Core State Standards for Mathematics, Grade 1, 1.MD.C.4: organize, represent and interpret data with up to three categories
  • Institute of Education Sciences practice guide: Assisting Students Struggling with Mathematics: Intervention in the Elementary Grades (WWC 2021006)
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