Took assessment on volume, design, and density. Handed out options for project due 3/28 or 3/29 (first week after spring break) which will be the first grades of Q4.
Homework
start thinking about your project due March 28(A) or 29(B)
watch and take notes on this video: LINK
Went over assessments with peer experts, then discussed the upcoming project and submitted initial ideas and any first questions on what the project requires. Then introduced the unit on circles by writing down what we knew and wanted to know about circles and then looked at circles through art history and its role in religious art as a way to represent "eternity." Used whiteboards to sketch out terms learned from the video assigned Monday and developed the procedure to finding the area of a sector given radius and central angle.
Notes from board
Homework
Watch and take notes on this video: link
Continue planning for your project
Warm up involved perpendicular radius-tangent and Pythagorean Theorem, area of a circle, inverse trigonometry review, and area of a sector. Looked at the effect of doubling radius versus doubling the angle for sector area in the context of a coupon for pizza. Then used manipulatives to develop theorems on chord relationships in circles (congruent chords are equidistant from the center; inscribed angles are half the measure of the intercepted arc, two inscribed angles that intercept the same arc are congruent, and intersecting chords create proportional relationships)
Notes from board
Homework
Finish this handout, #1-14 [due Tuesday 3/7]
Continue planning for project due 3/28
Resources
using radii to find various segment lengths: link [made by me!]
using the intersecting chords theorem: link [made by me!!]
chord equidistant concept: link
inscribed angle vs arc; link
inscribed angles sharing same arc: link
intersecting chords theorem: link