Ruler and Protractor
The Ruler and Protractor are to scale for classroom use.
These measurement tools are quick and easy to make and can be used to measure angles and lines of many die-cut shapes.
Students can use the Ruler and Protractor to analyze data and solve problems in the classroom. They can also draw images to scale applying these tools.
Supplies Used: Adhesive, Cardstock or construction paper, Clear Plastic Transparency, Permanent markers
The teacher will die-cut the materials for student use prior to the lesson.
- Die-cut two Rulers from cardstock or construction paper. Adhere the two Rulers together for a more durable Ruler.
- Trace and number the inch lines with a black permanent marker. Trace the 1/2" lines with a red marker (Figure A).
- Die-cut the Protractor from a clear plastic transparency sheet.
- Use a red permanent marker to indicate the inches along the bottom of the Protractor.
- Use a black permanent marker to mark every 15 degrees to indicate the angles (Figure B).
- The clear Protractor can be placed over a shape to measure the angles and sides.
- Students can use the Ruler and Protractor for solving many math problems (Main Photo).
- Figure A
- Figure B
Measurement and Data Grade 2
Measure and estimate lengths in standard units.
- Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks and measuring tapes.
Measurement and Data Grade 4
Geometric measurement: understand concepts of angle and measure angles.
- Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.