Standard(s) Taught 

MAFS.7.G.1.2
Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle.
MAFS.7.G.2.5
Use facts about supplementary, complementary, vertical, and adjacent angles in a multistep problem to write and solve simple equations for an unknown angle in a figure.
MAFS.8.G.1.5
Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angleangle criterion for similarity of triangles.

Learning Targets and Learning Criteria 

Students are successful when they can…
 draw geometric shapes with given conditions.
 construct triangles from three measures of angles or sides.
 describe when angle measures determine a triangle (given angles equal 180)
 describe when side measures determine a unique triangle (a + b > c) or (a + b < c).
 determine whether three angle measures of three side lengths can form a triangle.
 discover the definitions of supplementary, complementary, vertical, and adjacent angles.
 solve multistep problems by applying what you know about the types of angles.
 informally prove the anglesum theorem, the properties of angles when parallel lines are cut by a transversal and the angleangle criterion for similar triangles.
 prove that the sum of any triangle’s interior angles will have the same measure as a straight angle.
 make conjectures regarding the relationships and measurements of the angles created when two parallel lines are cut by a transversal.
 apply proven relationships to establish minimal properties to justify similarity.
 present informal arguments as to whether or not triangles are similar based on AngleAngle criterion.

Classroom Activities 

Monday (Innovative and 3rd Period Students)
 Instruction
 Exterior Angle Theorem
 Alternate Interior and Alternate Exterior Angles
 Transversals of Parallel Lines
 Assignments – due Thursday, February 25th
 IXL 8th Grade O.12 Exterior Angle Theorem
 IXL 7th Grade W.18 Identify alternate interior and alternate exterior angles
 IXL 8th Grade O.16 Identify alternate interior and alternate exterior angles
 IXL 8th Grade O.17 Transversals of parallel lines: name angle pairs
 IXL 8th Grade O.18 Transversals of parallel lines: find angle measures
Tuesday (5th Period Students)
 Finish all IXLs for Focus 6: Angles
 DIA 4 Review on kahoot!
Wednesday (Innovative and 3rd Period Students)
DIA 4 Review on kahoot!
Wednesday (5th Period Students)
DIA 4 on SchoolCity (vPortal)
Thursday (Innovative and 3rd Period Students)
 Finish all IXLs for Focus 6: Angles
 DIA 4 on SchoolCity (vPortal)
 Read about Pythagorean Theorem in The Complete Middle School Study Guide, pages 295 – 300.
 Pythagorean Theorem on Quizizz
 Start IXLs on Focus 7: Pythagorean Theorem handout.
 Assignments – due Wednesday, March 3rd
 IXL 8th Grade R.1 Pythagorean Theorem: find the length of the hypotenuse
 IXL 8th Grade R.2 Pythagorean Theorem: find the missing leg length
 IXL 8th Grade R.3 Pythagorean Theorem: find the missing leg or hypotenuse length
 IXL 8th Grade R.4 Pythagorean Theorem: find the perimeter
 IXL 8th Grade R.5 Pythagorean Theorem: word problems
 IXL 8th Grade R.6 Converse of the Pythagorean Theorem: is it a right triangle?
Friday (5th Period Students)
 Read about Pythagorean Theorem in The Complete Middle School Study Guide, pages 295 – 300.
 Pythagorean Theorem on Quizizz
 Start IXLs on Focus 7: Pythagorean Theorem handout.
 Assignments – due Wednesday, March 3rd
 IXL 8th Grade R.1 Pythagorean Theorem: find the length of the hypotenuse
 IXL 8th Grade R.2 Pythagorean Theorem: find the missing leg length
 IXL 8th Grade R.3 Pythagorean Theorem: find the missing leg or hypotenuse length
 IXL 8th Grade R.4 Pythagorean Theorem: find the perimeter
 IXL 8th Grade R.5 Pythagorean Theorem: word problems
 IXL 8th Grade R.6 Converse of the Pythagorean Theorem: is it a right triangle?

Assignments Due 

Summative
DIA 4
Formatives
Due Monday, February 22nd
 IXL 8th Grade O.7 Find missing angles in triangles
 IXL 8th Grade O.8 Find missing angles in triangles using ratios
 IXL 8th Grade O.9 Triangleangle Sum Theorem
Due Tuesday, February 23rd
 IXL 7th Grade W.18 Identify alternate interior and alternate exterior angles
 IXL 8th Grade O.16 Identify alternate interior and alternate exterior angles
 IXL 8th Grade O.17 Transversals of parallel lines: name angle pairs
 IXL 8th Grade O.18 Transversals of parallel lines: find angle measures
Due Thursday, February 25th
 IXL 8th Grade O.12 Exterior Angle Theorem
 IXL 7th Grade W.18 Identify alternate interior and alternate exterior angles
 IXL 8th Grade O.16 Identify alternate interior and alternate exterior angles
 IXL 8th Grade O.17 Transversals of parallel lines: name angle pairs

Additional Resources 

All IEP accommodations will be provided each class.
All Notes will be uploaded into GradeBook (Focus).
