# Surf for More Math

## CHAPTER 4: DATA RELATIONSHIPS

**Lesson 1: Types of Data **

Use these interactive activities to encourage students to have fun on the Web while learning about data relationships. Students can try these activities on their own or in pairs.

**Goal**

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

**Builds Upon**

Student Book pages 120–121

**Instructions for Use**

**Interpreting Data** allows students to collect data, create a frequency table, and then use the data to create a bar graph and a pictograph.

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 ** allows students to collect data, create a frequency table, and then choose the graph that represents the data collected.

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?