Maryland Math 2.DS.A.1.b

Math2nd GradeReasoning with Data and Statistics

The Standard

2.DS.A.1: Ask and answer questions by collecting, organizing and summarizing data.

Collect and organize data using surveys, making observations, or measuring.

Maryland College and Career Ready Standards for Mathematics (2025) · REPRESENT AND INTERPRET DATA.

Teacher's field guide

What Students Need to Do: Students ask a question, observe objects, or measure them. They record answers and observations in a labeled tally chart, or measurements in a table with units.
What Mastery Looks Like: A student records one answer for each classmate and checks that the tallies match the number asked. They label the choices clearly and use the same unit for every measurement.
Common Misconceptions: Students may count one person twice or leave out an answer. They may use choices that overlap, forget labels, or mix inches and centimeters in one table.
How to Assess It: Ask four classmates, 'Did you bring a water bottle today?' Make a labeled tally chart for yes and no, then check that your tallies total four.

Lesson moves

Give pairs ten mixed-color linking cubes to sort, then have them tally each color and check that the total is ten.
Ask, 'Could one student fit both has a dog and has a pet?' Have partners rewrite the choices so each answer fits once.
Play tally match: pair picture cards showing groups of buttons with labeled tally charts that show the same counts.
Measure five classroom pencils in centimeters, then record each length in a table labeled pencil and length in centimeters.

Free download

$Preview of the 2.DS.A.1.b printable worksheet$

A ready-to-print activity worksheet aligned to 2.DS.A.1.b, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

Keep exploring

Grade, subject, topic, and the complete standard are prefilled. Create one free, no account needed.