Today was a hands-on day to improve our construction skills as well as our understanding of why so that we are not just memorizing.
We started by doing 7 questions (5 matching, 2 constructions) from the old textbook on the desks. The constructions were isosceles right triangle and copy a triangle given 3 sides, followed by a median and an angle bisector.
A grade was taken over HW #14. There is no credit on homework if constructions are not done. Every problem (except #2) was a construction.
We shared good work and modeled any questions asked. A big focus today was finding resources on the mathopenref website:
https://www.mathopenref.com/tocs/constructionstoc.html
We practiced construction of an altitude outside an obtuse triangle. We made up our own ways to construct parallel lines.
We did an investigation on patty paper to discover C-8: every point on the angle bisector of an angle is equidistant from the sides of the angle. We looked at a Geogebra construction of perpendicular bisectors in one triangle, angle bisectors in another... then observed how and why a circle can be constructed around the first triangle, and a circle can be constructed inside the other one.
The homework #15 is a worksheet to review for the quiz and integrate some basic construction skills into more complicated tasks. There is also a topic list attached below.
We started by doing 7 questions (5 matching, 2 constructions) from the old textbook on the desks. The constructions were isosceles right triangle and copy a triangle given 3 sides, followed by a median and an angle bisector.
A grade was taken over HW #14. There is no credit on homework if constructions are not done. Every problem (except #2) was a construction.
We shared good work and modeled any questions asked. A big focus today was finding resources on the mathopenref website:
https://www.mathopenref.com/tocs/constructionstoc.html
We practiced construction of an altitude outside an obtuse triangle. We made up our own ways to construct parallel lines.
We did an investigation on patty paper to discover C-8: every point on the angle bisector of an angle is equidistant from the sides of the angle. We looked at a Geogebra construction of perpendicular bisectors in one triangle, angle bisectors in another... then observed how and why a circle can be constructed around the first triangle, and a circle can be constructed inside the other one.
The homework #15 is a worksheet to review for the quiz and integrate some basic construction skills into more complicated tasks. There is also a topic list attached below.
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