Writing Equations for Complementary, Supplementary and Adjacent Angles

Writing Equations for Complementary, Supplementary and Adjacent Angles
Writing Equations for Complementary, Supplementary and Adjacent Angles
Writing Equations for Complementary, Supplementary and Adjacent Angles
Writing Equations for Complementary, Supplementary and Adjacent Angles
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  1. This bundle is made up of three products from my store, all on the concept of complementary, adjacent, and supplementary angles. You can read a complete description for each product by clicking on each individual product. Writing Equations for Complementary, Supplementary, and Adjacent Angles A Fo
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Product Description
This smartboard lesson include a full set of directions for using the lesson, a student assignment sheet, a smartboard file, and a set of posters for the special pairs of angles.

The lesson focuses on CCSS 7.G.5.

If you don't have a smartboard or the notebook software you can project this lesson using the web version of smart notebook http://express.smarttech.com.

• The do now for the lesson is on slide 2. Students are asked to pair names, pictures and sizes of 4 different types of angles. The pictures, terms and measures can all be moved.
• The lesson opens with the students being challenged to think about which pairs of angles can be put together to form a right angle. (If you tap to the right of the first star a right angle will appear.) You can slide the angles together to show which angles do form a right angle. Tapping to the right of the second star the students will be reminded that these are called complementary angles.
• The next slide shows pairs of angles and the students are challenged to think about which pairs of angles can be put together to form a straight angle or line. (If you tap to the right of the first star a line will appear.) You can slide the angles together to show which angles do form a straight angle or line. Tapping to the right of the second star the students will be reminded that these are called supplementary angles.
• Slide 5 is just a summary slide showing adjacent complementary and adjacent supplementary angles. After talking about supplementary angles you can slide down the cover sheet to talk about the complementary angles.
• On slide 6 one of two complementary angles measures 25 deg and it is illustrated. Students are asked “What is the other angle?” . By tapping near the missing complementary angle a right angle appears. Use to picture to help students find the missing angle. (65 deg)
• Slide 7 shows two adjacent angles that are neither complementary or supplementary. You can make up a problem for this slide by telling students that the measure of angle ONP is 30 deg and ask them to find the measure of angle MNO. (96 deg)
• In slide 8 students are challenged to think about 2 supplementary angles in a parallelogram. Tap to the right of the star to reveal a parallelogram. Use this slide to introduce writing an equation that describes angles A and D being supplementary. (Measure of angle A + measure of angle D = 180 deg) Then using substitution find that the measure of angle A is 115 deg).
• Slide 9 shows two intersecting lines that for a 130 deg angle. Use this diagram to write appropriate equations. Use the second picture to write equations about w, x, y, and z to say that various pairs add up to 180 deg.
• Slide 10 shows some angles. Use the picture to write several equations.
• Slide 11 introduces slides 12-15.
• Slides 12-15 are four problems that can be assigned to students to solve as part of demonstration of learning.

You might want to check out
Foldables- Writing Equations for Supplementary Complementary and Adjacent Angles with works nicely with this Smartboard lesson. It is available in my store.
Total Pages
17 pages
Answer Key
Included
Teaching Duration
90 minutes
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