No school Monday due to eclipse. Warm up involved angular size, a concept from geometry/trigonometry related to the eclipse. Went over homework and passed out first quarter learning targets which lists the skills we learn in the first 9 weeks. Talked about why a circle is considered, arbitrarily, to include 360° which is an artifact of human history and Earth's revolution about the sun. Looked at how lines are considered 180° of rotation and how this relates to filmmaking. Did jigsaw groups with learning new terminology related to angles and angle pairs, then practiced these. Intended to learn some new circle terminology, and these are in the notes linked below but will be covered in more depth Thursday/Friday after the assessment.
Notes from board
First Quarter Learning Targets
Completed Foldable from class
Homework
p. 12 #11-20
Assessment next class: study the hw from p6, p11,p12 and look over your notes. Help videos below for extra review.
Resources
identify complementary and supplementary angles (just like #11) link
parts of circles (first part of video, second part is more advanced) (helps with 12-15) link
first part of this video goes over all the different kinds of angle pairs: link
how to name things: see chart on page 4 in textbook: digital version
video on how to name points, lines, rays, and angles: link
naming points, angles, and rays: link
naming angles, more explanation: link
Warm up helped prepare for assessment with recognizing angle pairs like adjacent, complementary, and vertical. Went over homework, then took assessment. Learned new circle vocabulary, then tried to draw a circle that passed through 3 random points not in a line. This led to the idea of the perpendicular bisector, the set of points that is the same distance from two endpoints (and thus it crosses in the center of a segment at 90 degrees). We then constructed this perpendicular bisector with compass and straight edge, once together and once on our own.
Notes from board
Homework
Watch and take notes on this video! link