# Ruler Professional

## Review Overview

### 7.1

#### Ruler Professional: A Best App for Measurement

Summary : An Easy-To-Use Ruler App

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Ruler Professional provides users with an interactive ruler. When launched, Ruler Professional shows users a 6″ ruler with two red lines. Users can adjust the red lines, and Ruler Professional will report the distance between the two lines (up to 6.5″). Users can also change the metric from inches to centimeters by clicking the “Info” button at the top of the screen.

### Instructional Ideas

1. Teachers can have students measure common objects (e.g., pencil, eraser, book) found in the classroom to build their familiarity with measurement. Teachers can require students to log the items they measured and their length.
2. Teachers can create a homework assignment in which they give students a variety of measurements (e.g., 2″, 3.75″, 5.25″) and require students to locate objects in their home of that length. Teachers can add a twist by requiring students to use their iPad’s camera to photograph the objects as well.
3. Teachers can build students’ addition skills with this app. To do so, teachers give students a series of objects to measure, and students are to measure all the objects, add their measurements together, and then determine an overall length.
4. Teachers can have students use this app to help them solve word problems dealing with measurement and length. For example, if Ted has a pen that measures 4.5 inches and Tonya has a pencil that measures 12.3 centimeters, who has the longer writing utensil?
 A1. Rigor A2. 21st Century Skills A3. Conn. to Future Learning A4. Value of Errors A5. Feedback to Teacher A6. Level of Material A7. Cooperative Learning A8. Accom. of Individual Diff.
 B1. Ability to Save Progress B2. Platform Integration B3. Screen Design B4. Ease of Use B5. Navigation B6. Goal Orientation B7. Information Presentation B8. Media Integration B9. Cultural Sensitivity
 C1. Learner Control C2. Interactivity C3. Pace C4. Flexibility C5. Interest C6. Aesthetics C7. Utility