## CHAPTER 4: DATA RELATIONSHIPS

**Lesson 1: Types of Data **

**Goal**

Tell the difference between first-hand data and second-hand data.

**Instructions for Use**

**Interpreting Data**

Survey a small group of children by clicking on each of them to create a tally chart. Then click “Done.”

Follow the instructions to turn your data into a bar graph. Then click “Done.”

Follow the instruction to turn your data into a pictogram. Then click “Done.”

Is the data in this activity first-hand data or second-hand data? How do you know?

**Data Picking **

Choose a level and click “Start.”

Survey a small group of students by clicking on each of them, using the answers received, create a tally chart. Include any zeros and the total number of students at the bottom. Click “Go.” Then select the graph that represents the data you collected.

Is the data in this activity first-hand data or second-hand data? How do you know?