- Measure distances using different tools
- Understand and apply the ruler postulate to measurement
- Understand and apply the segment addition postulate to measurement
- Use endpoints to identify distances on a coordinate grid
II.Cross-curricularStudy-Surveying
- Land surveyors measure distance all of the time.
- They determine land boundaries, and property lines, as well as determine roads etc.
- One possible activity is to have a land surveyor visit the class.
- Have the surveyor bring in his/her tools also have them demonstrate the actual measuring to the students.
- Maybe work on measuring a part of the school grounds.
- Ask the presenter to be prepared to discuss the ways that geometry and measurement are featured in his/her
job. - Have the students prepare questions and write a short report demonstrating what they have learned following
the visit.
III.TechnologyIntegration
- Have the students research land surveying.
- This can be done in class or as an at home assignment.
- Completing this assignment will help the students to be prepared when the land surveyor comes to visit the
class. - Ask students to keep track of the sites that they search and to jot down at least ten facts about land surveying
as a career. - An extension into future careers could have the students research schooling and salary options for land
surveyors. - Ask students to report on their findings.
IV.NotesonAssessment
- One of the biggest points to assess in this activity is the student questions.
- Ask the students to write down their questions and the answers to them.
- This will help you to confirm that the students gave thought to their questions and were alert to the answers.
Rays and Angles
I.SectionObjectives
- Understand and identify rays.
- Understand and classify angles.
- Understand and apply the protractor postulate.
- Understand and apply the angle addition postulate.
II.Cross-curricular-Astronomy
- Begin this lesson by asking students to observe the night sky.
- Tell them to make note of the different constellations that they observe.
- Also ask the students to find these constellations on line or in a book and to bring the hard
3.1. Basics of Geometry