Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Linear Functions

9-12

90 Minutes

• ##### Device
• TI-83
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• TI-86
• TI-89 / TI-89 Titanium
• TI-92 Plus / Voyage™ 200
• ##### Other Materials
• Straws
• Straight pins
• Plastic cups
• String or wire
• Graphing paper

## How strong is your bridge?

#### Activity Overview

Build a bridge of straw and straight pins. Data is collected and analyzed with handhelds by the students measuring the height of the bridge vs the number of marbles (in a cup.)

#### Before the Activity

Students have built a bridge of straws and straight pins. No pins can be placed inside the straws.

#### During the Activity

Build a bridge of straw and straight pins. Data is collected and analyzed with handhelds by the students measuring the height of the bridge vs the number of marbles (in a cup.)

#### After the Activity

Review student results:

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary