In this activity the student will explore the Law of Sines, a theorem involving sine ratios that applies to all triangles.
Before the Activity
Teacher preparation
Download the attached .Doc or .PDF documents and the TI_Nspire document.
You will need to copy the .tns document to students' handheld before the exploration.
Read activities in advance.
During the Activity
Classroom management tips
Be prepared to guide students during the exploration.
Encourage students to look for patterns, make connections, and share their findings during the exploration.
After the Activity
Assessment and evaluation
Evaluate students' conjecture written on page 1.4 of their TI_Nspire document.
Make students write about their findings and support their findings in observations done during the exploration.
Activity extensions
Students can use the law of sines to find the sides lengths and angle measures of a triangle.
Students can determine the area of a triangle given side-angle-side information
Connections to other content areas to explore: sail makers can use sine ratios to determine the amount of fabric needed to make a sail.
iPad is a trademark of Apple Inc., registered in the U.S. and other countries.
Vernier EasyData,Vernier EasyLink and Vernier EasyTemp are registered trademarks of Vernier Science Education.
TI websites use cookies to optimize site functionality and improve your experience. To find out more or to change your preferences, see our cookie policy page. Click Agree and Proceed to accept cookies and enter the site.
Control your cookie preferences
You can control your preferences for how we use cookies to collect and use information while you're on TI websites by adjusting the status of these categories.
Category
Description
Allow
Analytics and performance cookies
These cookies, including cookies from Google Analytics, allow us to recognize and count the number of visitors on TI sites and see how visitors navigate our sites. This helps us improve the way TI sites work (for example, by making it easier for you to find information on the site).
Advertising and marketing cookies
These cookies enable interest-based advertising on TI sites and third-party websites using information you make available to us when you interact with our sites. Interest-based ads are displayed to you based on cookies linked to your online activities, such as viewing products on our sites. We may also share this information with third parties for these purposes. These cookies help us tailor advertisements to better match your interests, manage the frequency with which you see an advertisement, and understand the effectiveness of our advertising.
Functional cookies
These cookies help identify who you are and store your activity and account information in order to deliver enhanced functionality, including a more personalized and relevant experience on our sites. If you do not allow these cookies, some or all site features and services may not function properly.
If you do not allow these cookies, some or all of the site features and services may not function properly.
Social media cookies
These cookies allow identification of users and content connected to online social media, such as Facebook, Twitter and other social media platforms, and help TI improve its social media outreach.
Strictly necessary
These cookies are necessary for the operation of TI sites or to fulfill your requests (for example, to track what items you have placed into your cart on the TI.com, to access secure areas of the TI site, or to manage your configured cookie preferences).