- This will provide students with step by step directions on how to complete the dragon tiles.
- Have students work in small groups.
- When the students have finished studying the information on the website, have them go ahead and create their
own pattern of dragon tiles. - Students can work in pairs on this.
- They can either draw in each tile, or create a pattern to trace.
- Either way, the dragon tiling will be completely made of right triangles.
IV.NotesonAssessment
- Assessment can be completed by looking at each student’s work product.
- If you built triangle tables, are the measurements of the table accurate?
- Is the table a right triangle?
- If you completed a dragon tiling, is it accurate?
- Does it show right triangles?
- Offer students feedback as needed.
Sine and Cosine Ratios
I.SectionObjectives
- Review the different parts of right triangles.
- Identify and use the sine ratio in a right triangle.
- Identify and use the cosine ratio in a right triangle.
- Understand sine and cosine ratios in special right triangles.
II.Cross-curricular-LandSurveying
- Find a local land surveyor and ask him/her to visit the classroom.
- This is an opportunity to have a speaker come and teach the students about how geometry can be applied in
real life situations. - Ask the speaker to be prepared to show the connection between land surveying and geometry.
- Also ask him/her to please bring tools for students to see.
- Students will need to complete some research on land surveying prior to the speakers presentation.
- Have the students prepare five questions each to ask the speaker, and be sure that the students ask questions of
the speaker when he/she is there. - Students can prepare a written report sharing how land surveying is connected to geometry following the
presentation.
III.TechnologyIntegration
- Use the internet to research land surveying.
- Be sure that the students understand what land surveyors do, some of the tools used, and how right triangles
play a part in land surveying. - There are several websites that students can visit to do this.
- They will find a lot of information simply by using google or Wikipedia.
IV.NotesonAssessment
- Read each students report on the speaker.
Chapter 3. Geometry TE - Enrichment