2-D-1-3

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Saved by Amy Gibson
on November 30, 2016 at 11:06:06 am

2.D.1.3 Write and solve one-step word problems involving addition or subtraction using data represented within pictographs and bar graphs with intervals of one.

In a Nutshell

In second grade, students will use data from a pictograph or bar graph and write and solve addition or subtraction word problems. In third grade students will be expected to write and solve one- and two-step problems using categorical data.

Student Actions	Teacher Actions
Describing and comparing categories of data. Analyzing data in bar-type graphs and tally charts to answer questions. Communicating their ideas about the information gathered and displayed. Interpret data from pictographs and bar graphs Apply the knowledge gained from the data to write and solve one-step word problems.	Creating real-world experiences for data collection that have meaning for students (favorite snack, pet, etc). Asking questions to engage student in a discussion about the meaning of data. Facilitating meaningful discussion of students’ ideas. Allowing sufficient wait time so that students can formulate and offer responses, questions, etc. Providing problems for these situations: adding to, taking from, putting together, taking apart, and comparing, and with unknowns in all positions.
Key Understandings	Misconceptions
Titles and labels are important in understanding data displays. Data from graphs can be used in everyday life Addition is used to join sets, subtraction is finding the difference between sets How to write a number sentence. Students need experience working with addition and subtraction to solve word problems which include data.	Student might think addition and subtraction are interchangeable. Students may not read the scale correctly. Student may assume all units equal one (Example: One square = 5 people) The column/row with the most is the winner.