LiveLesson Recordings
You may find here links to all the weekly group LiveLesson recordings for Geometry B. Note, to access them, you will need to be logged in to your Pearson Software at connexus.com.
02/10 - In this LiveLesson we reviewed the three formulas, distance, slope, and midpoint. We used these formulas to prove a given shape with given coordinates was a kite. We then used the formulas to prove the diagonals are perpendicular and that the minor axis was bisected.
02/24 - In this LiveLesson we proved the diagonals of an isosceles trapezoid are congruent using only coordinate geometry. This included using the distance formula and slope formula, and modelling the shape in Desmos and animating it to demonstrate it truly represents all isosceles trapezoids.
03/03 - In this LiveLesson we used Desmos to analyze what similar polygons are (congruent angles and proportional sides). We then discussed ratios and proportions, what they are and how to write them. We then solved several real-world ratio problems. Finally, we solve for unknown sides of two similar polygons.
03/10 - In this LiveLesson we set up and explored the side splitter theorem for triangles and the angle bisector proportion for triangles. We used these rules to solve for missing lengths.
03/17 - In this LiveLesson we learned to solve 30 60 90 (half a grilled cheese sandwich) and 45 45 90 (half a Dorito chip) triangles.
4/21 - In this LiveLesson we learned to find the area of a sector of a circle. We then extended that to find the area of a segment of a circle.
05/05 - In this LiveLesson we reviewed the Cereal Box Portfolio by finding the volume and surface area of cereal box. We then found the surface area of a cube and of a sphere that both hold the same volume of cereal. We discussed the advantages and disadvantages of the various designs.
05/19 - In this LiveLesson we learned the relationship between segments formed by chords that intersect inside a circle. We then used that relationship to solve for the missing segment when three of the four segments are known.
02/24 - In this LiveLesson we proved the diagonals of an isosceles trapezoid are congruent using only coordinate geometry. This included using the distance formula and slope formula, and modelling the shape in Desmos and animating it to demonstrate it truly represents all isosceles trapezoids.
03/03 - In this LiveLesson we used Desmos to analyze what similar polygons are (congruent angles and proportional sides). We then discussed ratios and proportions, what they are and how to write them. We then solved several real-world ratio problems. Finally, we solve for unknown sides of two similar polygons.
03/10 - In this LiveLesson we set up and explored the side splitter theorem for triangles and the angle bisector proportion for triangles. We used these rules to solve for missing lengths.
03/17 - In this LiveLesson we learned to solve 30 60 90 (half a grilled cheese sandwich) and 45 45 90 (half a Dorito chip) triangles.
4/21 - In this LiveLesson we learned to find the area of a sector of a circle. We then extended that to find the area of a segment of a circle.
05/05 - In this LiveLesson we reviewed the Cereal Box Portfolio by finding the volume and surface area of cereal box. We then found the surface area of a cube and of a sphere that both hold the same volume of cereal. We discussed the advantages and disadvantages of the various designs.
05/19 - In this LiveLesson we learned the relationship between segments formed by chords that intersect inside a circle. We then used that relationship to solve for the missing segment when three of the four segments are known.