Last updated: 5/5/2025

Geometry Next Gen

15 days including 2 quizzes, test review, and test

Unit 1

Constructions

(1) GEO.G.CO.1 Know precise definitions of angle, circle, perpendicular lines, parallel lines, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc as these exist within a plane.
(1) GEO.G.CO.12 Make, justify, and apply formal geometric constructions.
(1) GEO.G.CO.13 Make and justify the constructions for inscribing an equilateral triangle, a square and a regular hexagon in a circle.

How can we construct an equilateral triangle and an inscribed equilateral triangle?

How can we construct an inscribed hexagon and square?

How can we construct an angle bisector and copy an angle?

How can we construct a perpendicular bisector and a perpendicular line through a point?

How can we construct a parallel line Construct points of Concurrency – circumcenter and incenter?(including the circumscribed circle and inscribed circle of a triangle)

What congruencies are formed by each of the above constructions?

How can we construct an isosceles triangle(honors)?

How can we construct parallel lines by copying angles?(honors)

How can we construct a circle?(honors)

How can we construct an angle bisector of a rectangle and conclude if it also bisects the opposite angle?(honors)

 

  1.  Copy segments and angles.
  2. Bisect segments and angles.
  3. Construct perpendicular lines including through a point on or off a given line. 
  4. Construct a line parallel to a given line through a point not on the line.
  5. Construct a triangle with given lengths.
  6. Construct points of concurrency of a triangle(centroid, circumcenter,incenter, and orthocenter).
  7. Construct the inscribed circle of a triangle.
  8. Construct the circumscribed circle of a triangle.
  9. Make and justify the constructions for inscribing an equilateral triangle, a square and a regualr hexagon in a circle.
  10. Construct an isosceles triangle.(honors)
  11. Construct a circle.(honors)
  12. Construct the angle bisector of a rectangle and conclude wheter the opposite angle is also bisector.(honors)
  13. Construct a parallel line using copy an angle method.(honors)
  14. Project:  Using 5 or more constructions to make an abstract picture.(honors) 

Draw

Construct

Point 

Segment

Ray

Equilateral Triangle 

Intersection

Radius

Scalene Triangle

Isosceles Triangle

Inscribed

Circumscribed

Hexagon

Angle

Angle Bisector

Perpendicular Lines

Segment Bisector 

Parallel

Median

Altitude

Concurrency

Circumcenter

Incenter

Centroid

Orthocenter

 

I can construct the basic constructions.

I can use basic constructions to construct a 30 degree angle, 45 degree angle, divide a segment into 4 equal parts, scalene triangle and isosceles triangle.

I can construct the inscribed /circumscribed circles of a triangle.

I can state congruencies formed by all constructions.

 

Unit 1 Honors Constructions Packet.pdf
Unit 1 notepages.pdf

Unit 1 Constructions packet.pdf

2 Quizzes

Test Review

Unit Test

 

16 days

Unit 2 Angle Relationships

(1) GEO.G.CO.10 Prove and apply theorems about triangles.
(2) GEO.G.CO.9 Prove and apply theorems about lines and angles.

How can we solve for unknown angle measures in various situations?

How can we solve for unknown angle measures using auxiliary lines?

How can we construct a formal Proof using reasoning, theorems, definitions, etc. involving unknown angle measures?

  1. Vertical angles are congruent
  2. Angles on a line sum to 180 (supplementary)
  3. Angles at a point sum to 360
  4. Parallel lines cut by a transversal theorems
  5. The points on the perpendicular bisector are equidistant from the endpoints of the line segment.
  6. The interior angles of a triangle sum to 180
  7. The exterior angle theorem
  8. Base angles of an isosceles triangle are congruent.

Angles on a line/Linear Pair

Angles at a point

Vertical angles

Complementary angles

Supplementary angles

Adjacent angles

Alternate interior and exterior angles

Corresponding angles

Same side interior angles

Auxiliary lines

Triangle sum theorem

Isosceles triangle

Equilateral triangle

Exterior angle theorem

Proof

Theorem

Deductive reasoning

Substitution Property

Reflexive Property

Transitive Property

Addition Property

Subtraction Property

Division Property

Distributive Property

Symmetric Property

1. I can solve for angles at a point.

2. I can solve for missing angles on a line

3. I can solve for angles formed by two parallel lines cut by a transversal.

4. I can solve for the exterior angle of a given triangle.

5. I can solve for the missing angle in a triangle.

6. I can solve for the missing angle/s in an isosceles triangle.

7. By using known angle theorems, I can solve/prove for missing measurements in complex diagrams. (using auxilliary lines)

 **8. Unit 2 project  Help find all the missing angles using various Angle Theorems to help design a computer game. (honors)

 

 

Honors Unit 2 Solving for Unkown Angles - Google Docs.pdf
U2 Unknown Angles Note Pages - Google Docs - Copy - Copy.pdf
 Honors Unit 2 project.pdf
Unit 2 Solving for Unkown Angles - Google Docs.pdf

16 days including quizzes and tests

Unit 3 Transformations - rigid motions

(1) GEO.G.CO.2 Represent transformations as geometric functions that take points in the plane as inputs and give points as outputs. Compare transformations that preserve distance and angle measure to those that do not.
(2) GEO.G.CO.3 Given a regular or irregular polygon, describe the rotations and reflections (symmetries) that map the polygon onto itself.
(1) GEO.G.CO.4 Develop definitions of rotations, reflections, and translations in terms of points, angles, circles, perpendicular lines, parallel lines, and line segments.
(1) GEO.G.CO.5 Given a geometric figure and a rotation, reflection, or translation, draw the transformed figure. Specify a sequence of transformations that will carry a given figure onto another.
(2) GEO.G.CO.6 Use geometric descriptions of rigid motions to transform figures and to predict the effect of a given rigid motion on a given figure. Given two figures, use the definition of congruence in terms of rigid motions to decide if they are congruent.
(2) GEO.G.CO.7 Use the definition of congruence in terms of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.

How can we construct the Line of Reflection and Construct Images Reflected Over a Line?

How can we onstruct the Center of Rotation and Rotate a figure 90 degrees?

How can we construct a Translation given a vector?

How can we perform Reflections, Rotations, and Translations on the coordinate plane using a mapping?

How can we identify the number of lines of symmetry, order and angle of rotational symmetry?

How can we graph a Composition of Transformation on the coordinate plane?

ow can we identify Corresponding Parts of Congruent Figures?

How can we use Properties of Rigid Motions to Explain Congruence?

How can we identify the symmetries (rotations and reflections) that map a polygon onto itself.

1. Construct the Line of Reflection and Construct Images Reflected Over a Line

2. Construct the Center of Rotation and Rotate a figure 90 degrees

3. Construct a Translation given a vector

4. Perform Reflections, Rotations, and Translations on the coordinate plane using a mapping.

5. Identify the number of lines of symmetry, order and angle of rotational symmetry

6. Graph a Composition of Transformation on the coordinate plane

7. Identify Corresponding Parts of Congruent Figures

8. Use Properties of Rigid Motions to Explain Congruence

9. Given a polygon, describe the rotations and reflections(symmetries) that carry the polygon onto itself.

Angle of Rotation   

Reflection

Composition           

Reflection Symmetry

Congruence           

Regular Polygon

Correspondence      

Point reflection

Rigid Motion           

Rotation

Image                     

Rotational Symmetry                        

Line Symmetry       

Symmetry

Mapping                 

Transformation         

Point Symmetry       

Translation

Polygon                     

Vector

Pre-Image                                    

  1. I can construct the Line of Reflection and Construct Images Reflected Over a Line.
  2. I can construct the Center of Rotation and Rotate a figure 60,90 degrees.
  3. I can construct a Translation given a vector.
  4. I can perform Reflections, Rotations, and Translations on the coordinate plane using a mapping including point reflection.
  5. I can identify the number of lines of symmetry, order and angle of rotational symmetry. (including mapping a polygon onto itself)
  6. I can graph a Composition of Transformation on the coordinate plane.
  7. I can identify Corresponding Parts of Congruent Figures.
  8. I can use Properties of Rigid Motions to Explain Congruence.
  9. Honors desmos activity
  10. Honors Logo project

Honors U3 Honors REVISED Transformations Student Packet 22 -23 (AutoRecovered).docx
U3 REVISED Transformations Note Pages 22 -23.docx
U3 REVISED Transformations Student Packet 22 -23.docx

25 Days

Unit 4

Congruent Triangles

(2) GEO.G.CO.6 Use geometric descriptions of rigid motions to transform figures and to predict the effect of a given rigid motion on a given figure. Given two figures, use the definition of congruence in terms of rigid motions to decide if they are congruent.
(2) GEO.G.CO.7 Use the definition of congruence in terms of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.
(1) GEO.G.CO.8 Explain how the criteria for triangle congruence (ASA, SAS, SSS, AAS and HL (Hypotenuse Leg)) follow from the definition of congruence in terms of rigid motions.
(2) GEO.G.CO.9 Prove and apply theorems about lines and angles.
  • How can we write congruence statements using given information?
  • How can we prove triangle congruent using SSS, SAS, ASA, AAS and HL?
  • How can we use the Addition, Subtraction, Division Postulates, along with substitution in a formal proof?
  • How can we identify rigid Motions that would map one congruent triangle onto another?
  • How can we prove triangles are congruent and then prove a pair of corresponding parts (angles or sides) congruent by CPCTC?
  • How can we prove Isosceles Triangles, Parallel and Perpendicular lines, medians, and angle bisectors?

1. Write congruence statements using given information

2. Prove triangle congruent using SSS, SAS, ASA, AAS and HL

3. Use the Addition, Subtraction, Division Postulates, along with substitution in a formal proof

4. Identify rigid Motions that would map one congruent triangle onto another

5. Prove triangles are congruent and then prove a pair of corresponding parts (angles or sides) congruent by CPCTC

6. Prove Isosceles Triangles, Parallel and Perpendicular lines, medians, and angle bisectors

Right Angle                                           Postulate

Angle Bisector                                       Theorem

Segment Bisector                                  Substitution Property

Perpendicular Lines                               Reflexive Property

Midpoint                                               Addition Postulate

Median                                                 Subtraction Postulate

Perpendicular Bisector                           Division Postulate

Vertical Angles                                      CPCTC

Altitudes                                               

Linear Pair

Congruence

Isosceles triangle

Parallel lines

I can write congruence statements using given information.

I can prove triangle congruent using SSS, SAS, ASA, AAS and HL

I can use the Addition, Subtraction, Division Postulates, along with substitution in a formal proof.

I can identify rigid Motions that would map one congruent triangle onto another.

I can prove triangles are congruent and then prove a pair of corresponding parts (angles or sides) congruent by CPCTC

I can prove Isosceles Triangles, Parallel and Perpendicular lines, medians, and angle bisectors

Unit 5 Quadrilaterals      days

Unit 5 Quadrilaterals

(1) GEO.G.CO.11 Prove and apply theorems about parallelograms.
(2) GEO.G.CO.3 Given a regular or irregular polygon, describe the rotations and reflections (symmetries) that map the polygon onto itself.

How can we apply the properties of quadrilaterals (parallelogram, rectangle, rhombus, square and trapezoid) to find segment lengths and angle measures?

 

How can we solve algebraic problems related to quadrilaterals using the properties?

 

How can we prove a quadrilateral is a specific quadrilateral?

1. Know and apply the properties of quadrilaterals (parallelogram, rectangle, rhombus, square and trapezoid)

 Kites(honors)

2. Solve algebraic problems related to quadrilaterals using the properties.

 

3.Complete quadrilateral proofs.

Properties of a Parallelogram

Properties of a Rectangle

Properties of a Rhombus

Properties of a Square

Properties of an Isosceles Trapezoid

Properties of a Trapezoid

Quadrilateral

Properties of a kite (honors)

I can apply the properties of quadrilaterals (parallelogram, rectangle, rhombus, square and trapezoid) to find segment lengths and angle measures.

 Kite(Honors)

I can solve algebraic problems related to quadrilaterals using the properties.

 

I can complete quadrilateral proofs.

Unit 6 Similar Triangles

(1) G-SRT.1 Verify experimentally the properties of dilations given by a center and a scale factor:
(1) G-SRT.1.a A dilation takes a line not passing through the center of the dilation to a parallel line, and leaves a line passing through the center unchanged.
(1) G-SRT.2 Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.
(1) G-SRT.3 Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar.
(1) G-SRT.4 Prove theorems about triangles. Theorems include: a line parallel to one side of a triangle divides the other two proportionally, and conversely; the Pythagorean Theorem proved using triangle similarity.
(1) G-SRT.5 Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures.

How can we construct a dilation(scale drawing)?

How can we state and graph a dilation on the coordinate plane?

How can we prove triangles similar?

How can we prove that sides of similar triangles are in proportion?

How can we prove that in a true proportion, the product of the means = the product of the extremes?

How can we find missing side lengths and angle measures using the mid-segment theorem?

How can we use the side splitter theorem to find missing lengths in similar triangles?

How can we find missing lengths given 3 or more parallel lines cut by 2 transversals?

How can we compare the ratio of the sides, perimeters, areas and volumes of similar triangles?

How can we use the Angle Bisector Theorem to find missing lengths?

1. Construct a dilation(scale drawing)

2. State and graph a dilation on the coordinate plane

3. Prove triangles similar

4. Prove that sides of similar triangles are in proportion

5. Prove that in a true proportion, the product of the means = the product of the extremes

6. Find missing side lengths and angle measures using the mid-segment theorem

7. Use the side splitter theorem to find missing lengths in similar triangles

8. Find missing lengths given 3 or more parallel lines cut by 2 transversals.

9. Compare the ratio of the sides, perimeters, areas and volumes of similar triangles

10. Use the Angle Bisector Theorem to find missing lengths

Dilation                                                  Proportion

Scale Factor                                           Angle Bisector     

Center of Dilation                                   Ratio of the sides

Mid-Segment                                         Ratio of the area

Side-Splitter Theorem                            Ratio of the volumes

I can write congruence statements using given information.

I can prove triangle congruent using SSS, SAS, ASA, AAS and HL.

I can use the Addition, Subtraction, Division Postulates, along with substitution in a formal proof.

I can identify rigid Motions that would map one congruent triangle onto another.

I can prove triangles are congruent and then prove a pair of corresponding parts (angles or sides) congruent by CPCTC.

I can prove Isosceles Triangles, Parallel and Perpendicular lines, medians, and angle bisectors.

Unit 7 Right Triangle Trig

(1) G-SRT.6 Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
(1) G-SRT.7 Explain and use the relationship between the sine and cosine of complementary angles.
(1) G-SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.

How can we solve algebraic equations that contain radicals using all mathematical operations?

How can we solve for missing side lengths when an altitude is drawn to the hypotenuse of a right triangle?

How can we solve for side lengths in right triangles using the Pythagorean Theorem?

How can we solve for side lengths in Special Right Triangles using ratios?

How can we solve for side or angle measures in right triangles using Trigonometry Functions (sine, cosine, tangent)?

How can we use the sine and cosine complement rule to find missing angles?

How can we use the Trigonometric Identities to find missing side and angle measures?

1.      Solve algebraic equations that contain radicals using all mathematical operations.

2.      Solve for missing side lengths when an altitude is drawn to the hypotenuse of a right triangle.

3.      Solve for side lengths in right triangles using the Pythagorean Theorem.

4.      Solve for side lengths in Special Right Triangles using ratios.

5.      Solve for side or angle measures in right triangles using Trigonometry Functions (sine, cosine, tangent).

6.      Understand and use sine and cosine complements.

7.      Understand and use the Trigonometric Identities.

 

Rationalize the Denominators

Sine

Cosine

Tangent

Reference Angle

Opposite Side

Adjacent Side

Hypotenuse

Angle of Elevation 

Angle of Depression

I can solve algebraic equations that contain radicals using all mathematical operations.

I can solve for missing side lengths when an altitude is drawn to the hypotenuse of a right triangle.

I can solve for side lengths in right triangles using the Pythagorean Theorem.

I can solve for side lengths in Special Right Triangles using ratios.

I can solve for side or angle measures in right triangles using Trigonometry Functions (sine, cosine, tangent).

I can use sine and cosine complements.

I can understand and use the Trigonometric Identities.

Unit 8 Perimeter, Area, Volume

(1) G-GMD.1 Give an informal argument for the formulas for the circumference of a circle, area of a circle, volume of a cylinder, pyramid, and cone. Use dissection arguments, Cavalieri's principle, and informal limit arguments.
(1) G-GMD.3 Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems.
(1) G-GMD.4 Identify the shapes of two-dimensional cross-sections of threedimensional objects, and identify three-dimensional objects generated by rotations of two-dimensional objects.
(1) G-MG.1 Use geometric shapes, their measures, and their properties to describe objects (e.g., modeling a tree trunk or a human torso as a cylinder).
(1) G-MG.2 Apply concepts of density based on area and volume in modeling situations (e.g., persons per square mile, BTUs per cubic foot).
(1) G-MG.3 Apply geometric methods to solve design problems (e.g., designing an object or structure to satisfy physical constraints or minimize cost; working with typographic grid systems based on ratios).

How can we use the area formulas to solve for areas in regular figures, compound figures and answer shaded region questions?

How can we answer questions about relationships of figures in three dimensional space?

How can we find the volumes of prisms and answer questions about their cross sections?

How can we find the density of a figure or use a figures density to determine mass or volume for a figure?

How can we apply Cavalier’s Principle to find the volume or base area for a figure?

How can we use the Scaling Principle for Volume?

1.      Use the area formulas to solve for areas in regular figures, compound figures and answer shaded region questions.

2.      Answer questions about relationships of figures in three dimensional space.

3.      Find the volumes of prisms and answer questions about their cross sections.

4.      Find the density of a figure or use a figures density to determine mass or volume for a figure.

5.      Apply Cavalier’s Principle to find the volume or base area for a figure.

6.      Use the Scaling Principle for Volume.

Volume

Area

Perimeter

Cylinder

Prism

Pyramid

Cone

Sphere

Cross-section

Cavalieri's Principle

Oblique

Right

Base

Edge

Vertex

Lateral face

Density

Mass

I can use the area formulas to solve for areas in regular figures, compound figures and answer shaded region questions.

I can answer questions about relationships of figures in three dimensional space.

I can find the volumes of prisms and answer questions about their cross sections.

I can find the density of a figure or use a figures density to determine mass or volume for a figure.

I can apply Cavalier’s Principle to find the volume or base area for a figure.

I can use the Scaling Principle for Volume.

 

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