Geometry, Teacher\'s Edition

Students will apply the HL Congruence Theorem. IV.NotesonAssessment Check student diagrams. Is the work accurately labeled wi ...

Isosceles and Equilateral Triangles I.SectionObjectives Prove and use the Base Angles Theorem. Prove that an equilateral triang ...

II.ProblemSolvingActivity-TransformationGame In this game, students are going to manipulate one figure to represent the clues t ...

5.5 Relationships within Triangles Midsegments of a Triangle I.SectionObjectives Identify the midsegment of a triangle. Apply t ...

Perpendicular Bisectors in Triangles I.SectionObjectives Construct the perpendicular bisector of a line segment. Apply the Perp ...

To prepare the activity, have several triangles drawn out for the students. Divide the students into groups. Each group needs t ...

Extension- does this continue to prove true if more triangles are added? Where can they be added? III.MeetingObjectives Stude ...

Look at each student’s triangles. Is the orthocenter of the acute triangle inside the triangle? Is the orthocenter of the obtus ...

Apply the SAS and SSS Triangle Inequality Theorems to solve problems. II.ProblemSolving-NamethatInequality This problem solvi ...

• 3 x+ 5 = 41 3 ( 11 )+ 5 = 38 386 = 41 Since the band teacher congratulated Marcy on selling more than forty bars, we can have ...

5.6 Quadrilaterals Interior Angles I.SectionObjectives Identify the interior angles of convex polygons. Find the sums of interi ...

Identify the exterior angles of convex polygons. Find the sums of exterior angles in convex polygons. II.ProblemSolvingActivit ...

Identify how to classify shapes on a coordinate grid. II.ProblemSolvingActivity-QuadDesign This is a creative design activity ...

If so, help the students to expand their thinking to see the other properties of the figure as well. Ask “What do you notice ab ...

Students will prove a quadrilateral is a parallelogram given congruent opposite sides. Students will prove a quadrilateral is a ...

Trapezoids I.SectionObjectives Understand and prove that the base angles of isosceles trapezoids are congruent. Understand and ...

For this activity, use the kite dimensions found in the text under the exercises on page 398-399. This is Figure06.08.01. Give ...

5.7 Similarity Ratios and Proportions I.SectionObjectives Write and simplify ratios. Formulate proportions. Use ratios and prop ...

Prove theorems about proportions. Recognize true proportions. Use proportions theorem in problem solving. II.ProblemSolvingAct ...

Students should be commenting that because the angle measures are all the same, that the side lengths will be proportional. The ...