IXL skill plan | Geometry plan for HMH Texas

Skill plan for HMH Texas - Geometry

IXL provides skill alignments with recommended IXL skills for each unit. Find the IXL skills that are right for you below!

Unit

Print skill plan

1	Unit 1 Transformations and Congruence
Module 1 - Tools of Geometry
Lesson 1.1: Segment Length and Midpoints		1. Lines, line segments, and rays 2. Construct a congruent segment 3. Distance formula 4. Midpoint formula: find the midpoint Also consider: • Midpoint formula: find the endpoint
Lesson 1.1: Segment Length and Midpoints
1. Lines, line segments, and rays 2. Construct a congruent segment 3. Distance formula 4. Midpoint formula: find the midpoint Also consider: • Midpoint formula: find the endpoint

Lesson 1.2: Angle Measures and Angle Bisectors		1. Construct a congruent angle 2. Angle vocabulary 3. Angle measures 4. Construct an angle bisector Also consider: • Angle addition • Classify angles • Angle bisectors
Lesson 1.2: Angle Measures and Angle Bisectors
1. Construct a congruent angle 2. Angle vocabulary 3. Angle measures 4. Construct an angle bisector Also consider: • Angle addition • Classify angles • Angle bisectors

Lesson 1.3: Representing and Describing Transformations		1. Translations: write the rule 2. Reflections and rotations: write the rule
Lesson 1.3: Representing and Describing Transformations
1. Translations: write the rule 2. Reflections and rotations: write the rule

Lesson 1.4: Reasoning and Proof		1. Conditionals 2. Properties of planes, lines, and points Also consider: • Identify hypotheses and conclusions • Counterexamples • Properties of equality
Lesson 1.4: Reasoning and Proof
1. Conditionals 2. Properties of planes, lines, and points Also consider: • Identify hypotheses and conclusions • Counterexamples • Properties of equality

Lesson 1.5: Related Conditionals		1. Negations 2. Converses, inverses, and contrapositives 3. Biconditionals
Lesson 1.5: Related Conditionals
1. Negations 2. Converses, inverses, and contrapositives 3. Biconditionals
Module 2 - Transformations and Symmetry
Lesson 2.1: Translations		1. Translations: graph the image 2. Translations: find the coordinates
Lesson 2.1: Translations
1. Translations: graph the image 2. Translations: find the coordinates

Lesson 2.2: Reflections		1. Reflections: graph the image 2. Reflections: find the coordinates
Lesson 2.2: Reflections
1. Reflections: graph the image 2. Reflections: find the coordinates

Lesson 2.3: Rotations		1. Rotate polygons about a point 2. Rotations: graph the image 3. Rotations: find the coordinates
Lesson 2.3: Rotations
1. Rotate polygons about a point 2. Rotations: graph the image 3. Rotations: find the coordinates

Lesson 2.4: Investigating Symmetry		1. Line symmetry 2. Rotational symmetry Also consider: • Draw lines of symmetry • Count lines of symmetry • Transformations that carry a polygon onto itself
Lesson 2.4: Investigating Symmetry
1. Line symmetry 2. Rotational symmetry Also consider: • Draw lines of symmetry • Count lines of symmetry • Transformations that carry a polygon onto itself
Module 3 - Congruent Figures
Lesson 3.1: Sequences of Transformations		1. Sequences of congruence transformations: graph the image Also consider: • Sequences of congruence transformations: choose the sequence • Sequences of congruence transformations: find the rules
Lesson 3.1: Sequences of Transformations
1. Sequences of congruence transformations: graph the image Also consider: • Sequences of congruence transformations: choose the sequence • Sequences of congruence transformations: find the rules

Lesson 3.2: Proving Figures are Congruent Using Rigid Motions		1. Determine if two figures are congruent: justify your answer
Lesson 3.2: Proving Figures are Congruent Using Rigid Motions
1. Determine if two figures are congruent: justify your answer

Lesson 3.3: Corresponding Parts of Congruent Figures are Congruent		1. Congruence statements and corresponding parts 2. Solve problems involving corresponding parts 3. Identify congruent figures
Lesson 3.3: Corresponding Parts of Congruent Figures are Congruent
1. Congruence statements and corresponding parts 2. Solve problems involving corresponding parts 3. Identify congruent figures

Checkpoint opportunity		1. Checkpoint: Rigid motion and congruence
Checkpoint opportunity
1. Checkpoint: Rigid motion and congruence

2	Unit 2 Lines, Angles, and Triangles
Module 4 - Lines and Angles
Lesson 4.1: Angles Formed by Intersecting Lines		1. Identify complementary, supplementary, vertical, adjacent, and congruent angles 2. Find measures of complementary, supplementary, vertical, and adjacent angles Also consider: • Proofs involving angles • Angle diagrams: solve for the variable
Lesson 4.1: Angles Formed by Intersecting Lines
1. Identify complementary, supplementary, vertical, adjacent, and congruent angles 2. Find measures of complementary, supplementary, vertical, and adjacent angles Also consider: • Proofs involving angles • Angle diagrams: solve for the variable

Lesson 4.2: Transversals and Parallel Lines		1. Transversals: name angle pairs 2. Transversals of parallel lines: find angle measures 3. Transversals of parallel lines: solve for x 4. Transversals of parallel lines: prove angle relationships
Lesson 4.2: Transversals and Parallel Lines
1. Transversals: name angle pairs 2. Transversals of parallel lines: find angle measures 3. Transversals of parallel lines: solve for x 4. Transversals of parallel lines: prove angle relationships

Lesson 4.3: Proving Lines are Parallel		1. Transversals: prove lines are parallel 2. Construct parallel lines
Lesson 4.3: Proving Lines are Parallel
1. Transversals: prove lines are parallel 2. Construct parallel lines

Lesson 4.4: Perpendicular Lines		1. Construct the midpoint or perpendicular bisector of a segment 2. Perpendicular Bisector Theorem Also consider: • Construct a perpendicular line
Lesson 4.4: Perpendicular Lines
1. Construct the midpoint or perpendicular bisector of a segment 2. Perpendicular Bisector Theorem Also consider: • Construct a perpendicular line

Lesson 4.5: Equations of Parallel and Perpendicular Lines		1. Slopes of parallel and perpendicular lines 2. Equations of parallel and perpendicular lines
Lesson 4.5: Equations of Parallel and Perpendicular Lines
1. Slopes of parallel and perpendicular lines 2. Equations of parallel and perpendicular lines

Checkpoint opportunity		1. Checkpoint: Geometric constructions 2. Checkpoint: Line and angle theorems 3. Checkpoint: Parallel and perpendicular lines
Checkpoint opportunity
1. Checkpoint: Geometric constructions 2. Checkpoint: Line and angle theorems 3. Checkpoint: Parallel and perpendicular lines
Module 5 - Triangle Congruence Criteria
Lesson 5.1: Exploring What Makes Triangles Congruent		1. Prove triangles are congruent using rigid motions 2. Congruence statements and corresponding parts of triangles 3. Solve problems involving corresponding parts of congruent triangles
Lesson 5.1: Exploring What Makes Triangles Congruent
1. Prove triangles are congruent using rigid motions 2. Congruence statements and corresponding parts of triangles 3. Solve problems involving corresponding parts of congruent triangles

Lesson 5.2: ASA Triangle Congruence Lesson 5.3: SAS Triangle Congruence Lesson 5.4: SSS Triangle Congruence		1. SSS, SAS, and ASA Theorems 2. Proving triangles congruent by SSS, SAS, and ASA Also consider: • Proofs involving corresponding parts of congruent triangles I
Lesson 5.2: ASA Triangle Congruence Lesson 5.3: SAS Triangle Congruence Lesson 5.4: SSS Triangle Congruence
1. SSS, SAS, and ASA Theorems 2. Proving triangles congruent by SSS, SAS, and ASA Also consider: • Proofs involving corresponding parts of congruent triangles I
Module 6 - Applications of Triangle Congruence
Lesson 6.1: Justifying Constructions		1. Construct an equilateral triangle or regular hexagon Also consider: • Construct a square inscribed in a circle • Construct a regular hexagon inscribed in a circle
Lesson 6.1: Justifying Constructions
1. Construct an equilateral triangle or regular hexagon Also consider: • Construct a square inscribed in a circle • Construct a regular hexagon inscribed in a circle

Lesson 6.2: AAS Triangle Congruence		1. Proving triangles congruent by AAS Also consider: • SSS, SAS, ASA, and AAS Theorems • Proving triangles congruent by SSS, SAS, ASA, and AAS
Lesson 6.2: AAS Triangle Congruence
1. Proving triangles congruent by AAS Also consider: • SSS, SAS, ASA, and AAS Theorems • Proving triangles congruent by SSS, SAS, ASA, and AAS

Lesson 6.3: HL Triangle Congruence		1. Hypotenuse-Leg Theorem
Lesson 6.3: HL Triangle Congruence
1. Hypotenuse-Leg Theorem
Module 7 - Properties of Triangles
Lesson 7.1: Interior and Exterior Angles		1. Triangle Angle-Sum Theorem 2. Exterior Angle Theorem 3. Interior angles of polygons Also consider: • Exterior angles of polygons • Proofs involving triangles I
Lesson 7.1: Interior and Exterior Angles
1. Triangle Angle-Sum Theorem 2. Exterior Angle Theorem 3. Interior angles of polygons Also consider: • Exterior angles of polygons • Proofs involving triangles I

Lesson 7.2: Isosceles and Equilateral Triangles		1. Congruency in isosceles and equilateral triangles 2. Proofs involving isosceles triangles Also consider: • Classify triangles
Lesson 7.2: Isosceles and Equilateral Triangles
1. Congruency in isosceles and equilateral triangles 2. Proofs involving isosceles triangles Also consider: • Classify triangles

Lesson 7.3: Triangle Inequalities		1. Triangle Inequality Theorem 2. Angle-side relationships in triangles
Lesson 7.3: Triangle Inequalities
1. Triangle Inequality Theorem 2. Angle-side relationships in triangles
Module 8 - Special Segments in Triangles
Lesson 8.1: Perpendicular Bisectors of Triangles		1. Construct the circumscribed circle and the circumcenter of a triangle
Lesson 8.1: Perpendicular Bisectors of Triangles
1. Construct the circumscribed circle and the circumcenter of a triangle

Lesson 8.2: Angle Bisectors of Triangles		1. Construct the inscribed circle and the incenter of a triangle
Lesson 8.2: Angle Bisectors of Triangles
1. Construct the inscribed circle and the incenter of a triangle

Lesson 8.3: Medians and Altitudes of Triangles		1. Find the centroid of a triangle 2. Construct the centroid or orthocenter of a triangle Also consider: • Identify medians, altitudes, angle bisectors, and perpendicular bisectors
Lesson 8.3: Medians and Altitudes of Triangles
1. Find the centroid of a triangle 2. Construct the centroid or orthocenter of a triangle Also consider: • Identify medians, altitudes, angle bisectors, and perpendicular bisectors

Lesson 8.4: Midsegments of Triangles		1. Midsegments of triangles Also consider: • Proofs involving the Triangle Midsegment Theorem
Lesson 8.4: Midsegments of Triangles
1. Midsegments of triangles Also consider: • Proofs involving the Triangle Midsegment Theorem

3	Unit 3 Quadrilaterals and Coordinate Proof
Module 9 - Properties of Quadrilaterals
Lesson 9.1: Properties of Parallelograms		1. Properties of parallelograms 2. Find missing angles in parallelograms
Lesson 9.1: Properties of Parallelograms
1. Properties of parallelograms 2. Find missing angles in parallelograms

Lesson 9.2: Conditions for Parallelograms		1. Proving a quadrilateral is a parallelogram
Lesson 9.2: Conditions for Parallelograms
1. Proving a quadrilateral is a parallelogram

Lesson 9.3: Properties of Rectangles, Rhombuses, and Squares		1. Properties of rhombuses 2. Properties of squares and rectangles
Lesson 9.3: Properties of Rectangles, Rhombuses, and Squares
1. Properties of rhombuses 2. Properties of squares and rectangles

Lesson 9.4: Conditions for Rectangles, Rhombuses, and Squares
Lesson 9.4: Conditions for Rectangles, Rhombuses, and Squares


Lesson 9.5: Properties and Conditions for Kites and Trapezoids		1. Properties of kites 2. Identify trapezoids 3. Properties of trapezoids Also consider: • Classify quadrilaterals I • Classify quadrilaterals II • Review: properties of quadrilaterals
Lesson 9.5: Properties and Conditions for Kites and Trapezoids
1. Properties of kites 2. Identify trapezoids 3. Properties of trapezoids Also consider: • Classify quadrilaterals I • Classify quadrilaterals II • Review: properties of quadrilaterals

Checkpoint opportunity		1. Checkpoint: Parallelogram theorems
Checkpoint opportunity
1. Checkpoint: Parallelogram theorems
Module 10 - Coordinate Proof Using Slope and Distance
Lesson 10.1: Slope and Parallel Lines Lesson 10.2: Slope and Perpendicular Lines		1. Slopes of lines 2. Graph quadrilaterals
Lesson 10.1: Slope and Parallel Lines Lesson 10.2: Slope and Perpendicular Lines
1. Slopes of lines 2. Graph quadrilaterals

Lesson 10.3: Coordinate Proof Using Distance with Segments and Triangles		1. Classify triangles on the coordinate plane: justify your answer
Lesson 10.3: Coordinate Proof Using Distance with Segments and Triangles
1. Classify triangles on the coordinate plane: justify your answer

Lesson 10.4: Coordinate Proof Using Distance with Quadrilaterals		1. Classify quadrilaterals on the coordinate plane: justify your answer
Lesson 10.4: Coordinate Proof Using Distance with Quadrilaterals
1. Classify quadrilaterals on the coordinate plane: justify your answer

Lesson 10.5: Perimeter and Area on the Coordinate Plane		1. Area and perimeter in the coordinate plane I 2. Area and perimeter in the coordinate plane II Also consider: • Area and perimeter mixed review
Lesson 10.5: Perimeter and Area on the Coordinate Plane
1. Area and perimeter in the coordinate plane I 2. Area and perimeter in the coordinate plane II Also consider: • Area and perimeter mixed review

4	Unit 4 Similarity
Module 11 - Similarity and Transformations
Lesson 11.1: Dilations		1. Dilations: find the scale factor 2. Dilations: find the scale factor and center of the dilation Also consider: • Dilations: graph the image • Dilations: find the coordinates • Dilations: find length, perimeter, and area • Dilations and parallel lines
Lesson 11.1: Dilations
1. Dilations: find the scale factor 2. Dilations: find the scale factor and center of the dilation Also consider: • Dilations: graph the image • Dilations: find the coordinates • Dilations: find length, perimeter, and area • Dilations and parallel lines

Lesson 11.2: Proving Figures Are Similar Using Transformations		1. Similar triangles and similarity transformations 2. Similarity of circles
Lesson 11.2: Proving Figures Are Similar Using Transformations
1. Similar triangles and similarity transformations 2. Similarity of circles

Lesson 11.3: Corresponding Parts of Similar Figures		1. Identify similar figures 2. Side lengths and angle measures in similar figures Also consider: • Ratios in similar figures • Similarity statements
Lesson 11.3: Corresponding Parts of Similar Figures
1. Identify similar figures 2. Side lengths and angle measures in similar figures Also consider: • Ratios in similar figures • Similarity statements

Lesson 11.4: AA Similarity of Triangles		1. Angle-angle criterion for similar triangles 2. Similarity rules for triangles 3. Prove similarity statements
Lesson 11.4: AA Similarity of Triangles
1. Angle-angle criterion for similar triangles 2. Similarity rules for triangles 3. Prove similarity statements

Checkpoint opportunity		1. Checkpoint: Transformations of geometric figures 2. Checkpoint: Similarity transformations
Checkpoint opportunity
1. Checkpoint: Transformations of geometric figures 2. Checkpoint: Similarity transformations
Module 12 - Using Similar Triangles
Lesson 12.1: Triangle Proportionality Theorem		1. Triangle Proportionality Theorem Also consider: • Proofs involving the Triangle Proportionality Theorem
Lesson 12.1: Triangle Proportionality Theorem
1. Triangle Proportionality Theorem Also consider: • Proofs involving the Triangle Proportionality Theorem

Lesson 12.2: Subdividing a Segment in a Given Ratio		1. Partition a line segment in a given ratio
Lesson 12.2: Subdividing a Segment in a Given Ratio
1. Partition a line segment in a given ratio

Lesson 12.3: Using Proportional Relationships		1. Similar triangles and indirect measurement
Lesson 12.3: Using Proportional Relationships
1. Similar triangles and indirect measurement

Lesson 12.4: Similarity in Right Triangles		1. Similarity and altitudes in right triangles 2. Proofs involving similarity in right triangles Also consider: • Prove the Pythagorean theorem
Lesson 12.4: Similarity in Right Triangles
1. Similarity and altitudes in right triangles 2. Proofs involving similarity in right triangles Also consider: • Prove the Pythagorean theorem

Checkpoint opportunity		1. Checkpoint: Partition a line segment 2. Checkpoint: Triangle similarity and congruence 3. Checkpoint: Triangle theorems
Checkpoint opportunity
1. Checkpoint: Partition a line segment 2. Checkpoint: Triangle similarity and congruence 3. Checkpoint: Triangle theorems

5	Unit 5 Trigonometry
Module 13 - Trigonometry with Right Triangles
Lesson 13.1: Tangent Ratio		1. Find the tangent ratio 2. Find a side length using the tangent ratio 3. Find angle measures using inverse tangent
Lesson 13.1: Tangent Ratio
1. Find the tangent ratio 2. Find a side length using the tangent ratio 3. Find angle measures using inverse tangent

Lesson 13.2: Sine and Cosine Ratios		1. Trigonometric ratios: sin, cos, and tan 2. Trigonometric ratios: find a side length 3. Trigonometric ratios: find an angle measure Also consider: • Sine and cosine of complementary angles • Trigonometric ratios in similar right triangles
Lesson 13.2: Sine and Cosine Ratios
1. Trigonometric ratios: sin, cos, and tan 2. Trigonometric ratios: find a side length 3. Trigonometric ratios: find an angle measure Also consider: • Sine and cosine of complementary angles • Trigonometric ratios in similar right triangles

Lesson 13.3: Special Right Triangles		1. Special right triangles 2. Solve a special right triangle Also consider: • Pythagorean theorem • Converse of the Pythagorean theorem
Lesson 13.3: Special Right Triangles
1. Special right triangles 2. Solve a special right triangle Also consider: • Pythagorean theorem • Converse of the Pythagorean theorem

Lesson 13.4: Problem Solving with Trigonometry		1. Area of a triangle: sine formula 2. Solve a right triangle
Lesson 13.4: Problem Solving with Trigonometry
1. Area of a triangle: sine formula 2. Solve a right triangle

Checkpoint opportunity		1. Checkpoint: Right triangle trigonometry
Checkpoint opportunity
1. Checkpoint: Right triangle trigonometry

6	Unit 6 Properties of Circles
Module 14 - Angles and Segments in Circles
Lesson 14.1: Central Angles and Inscribed Angles		1. Parts of a circle 2. Central angles and arc measures 3. Inscribed angles Also consider: • Angles in inscribed right triangles • Construct an equilateral triangle inscribed in a circle • Arcs and chords
Lesson 14.1: Central Angles and Inscribed Angles
1. Parts of a circle 2. Central angles and arc measures 3. Inscribed angles Also consider: • Angles in inscribed right triangles • Construct an equilateral triangle inscribed in a circle • Arcs and chords

Lesson 14.2: Angles in Inscribed Quadrilaterals		1. Angles in inscribed quadrilaterals I 2. Angles in inscribed quadrilaterals II
Lesson 14.2: Angles in Inscribed Quadrilaterals
1. Angles in inscribed quadrilaterals I 2. Angles in inscribed quadrilaterals II

Lesson 14.3: Tangents and Circumscribed Angles		1. Tangent lines 2. Construct a tangent line to a circle
Lesson 14.3: Tangents and Circumscribed Angles
1. Tangent lines 2. Construct a tangent line to a circle

Lesson 14.4: Segment Relationships in Circles		1. Segments formed by chords, secants, and tangents
Lesson 14.4: Segment Relationships in Circles
1. Segments formed by chords, secants, and tangents

Lesson 14.5: Angle Relationships in Circles		1. Angles formed by chords, secants, and tangents
Lesson 14.5: Angle Relationships in Circles
1. Angles formed by chords, secants, and tangents

Checkpoint opportunity		1. Checkpoint: Angles and lines in circles
Checkpoint opportunity
1. Checkpoint: Angles and lines in circles
Module 15 - Arc Length and Sector Area
Lesson 15.1: Justifying Circumference and Area of a Circle		1. Area and circumference of circles
Lesson 15.1: Justifying Circumference and Area of a Circle
1. Area and circumference of circles

Lesson 15.2: Arc Length and Radian Measure		1. Arc length 2. Convert between radians and degrees Also consider: • Radians and arc length
Lesson 15.2: Arc Length and Radian Measure
1. Arc length 2. Convert between radians and degrees Also consider: • Radians and arc length

Lesson 15.3: Sector Area		1. Understand arc length and sector area of a circle 2. Area of sectors
Lesson 15.3: Sector Area
1. Understand arc length and sector area of a circle 2. Area of sectors

Lesson 15.4: Equation of a Circle		1. Derive equations of circles using the Pythagorean theorem 2. Write equations of circles in standard form using properties 3. Find properties of circles from equations in general form 4. Determine if a point lies on a circle Also consider: • Complete the square • Write equations of circles in standard form from graphs • Convert equations of circles from general to standard form • Graph circles from equations in general form
Lesson 15.4: Equation of a Circle
1. Derive equations of circles using the Pythagorean theorem 2. Write equations of circles in standard form using properties 3. Find properties of circles from equations in general form 4. Determine if a point lies on a circle Also consider: • Complete the square • Write equations of circles in standard form from graphs • Convert equations of circles from general to standard form • Graph circles from equations in general form

Checkpoint opportunity		1. Checkpoint: Coordinate proofs 2. Checkpoint: Arc length and area of sectors 3. Checkpoint: Equations of circles
Checkpoint opportunity
1. Checkpoint: Coordinate proofs 2. Checkpoint: Arc length and area of sectors 3. Checkpoint: Equations of circles

7	Unit 7 Measuring and Modeling in Two and Three Dimensions
Module 16 - Volume Formulas
Lesson 16.1: Volume of Prisms and Cylinders		1. Volume of prisms and cylinders 2. Volume of compound figures Also consider: • Volume of complex prisms
Lesson 16.1: Volume of Prisms and Cylinders
1. Volume of prisms and cylinders 2. Volume of compound figures Also consider: • Volume of complex prisms

Lesson 16.2: Volume of Pyramids		1. Volume of pyramids
Lesson 16.2: Volume of Pyramids
1. Volume of pyramids

Lesson 16.3: Volume of Cones		1. Volume of cones
Lesson 16.3: Volume of Cones
1. Volume of cones

Lesson 16.4: Volume of Spheres		1. Volume of spheres
Lesson 16.4: Volume of Spheres
1. Volume of spheres

Checkpoint opportunity		1. Checkpoint: Volume
Checkpoint opportunity
1. Checkpoint: Volume
Module 17 - Visualizing Solids
Lesson 17.1: Cross Sections and Solids of Rotation		1. Nets and drawings of three-dimensional figures 2. Cross sections of three-dimensional figures 3. Solids of revolution
Lesson 17.1: Cross Sections and Solids of Rotation
1. Nets and drawings of three-dimensional figures 2. Cross sections of three-dimensional figures 3. Solids of revolution

Lesson 17.2: Surface Area of Prisms and Cylinders		1. Surface area of prisms and cylinders
Lesson 17.2: Surface Area of Prisms and Cylinders
1. Surface area of prisms and cylinders

Lesson 17.3: Surface Area of Pyramids and Cones		1. Surface area of pyramids and cones
Lesson 17.3: Surface Area of Pyramids and Cones
1. Surface area of pyramids and cones

Lesson 17.4: Surface Area of Spheres		1. Surface area of spheres
Lesson 17.4: Surface Area of Spheres
1. Surface area of spheres

Checkpoint opportunity		1. Checkpoint: Cross sections and solids of revolution
Checkpoint opportunity
1. Checkpoint: Cross sections and solids of revolution
Module 18 - Modeling and Problem Solving
Lesson 18.1: Perimeter and Area in Problem Solving		1. Area and perimeter: word problems
Lesson 18.1: Perimeter and Area in Problem Solving
1. Area and perimeter: word problems

Lesson 18.2: Geometric Probability		1. Geometric probability
Lesson 18.2: Geometric Probability
1. Geometric probability

Lesson 18.3: Scale Factor		1. Perimeter and area: changes in scale 2. Surface area and volume: changes in scale
Lesson 18.3: Scale Factor
1. Perimeter and area: changes in scale 2. Surface area and volume: changes in scale

Lesson 18.4: Regular Polygons		1. Area of regular polygons Also consider: • Regular and irregular polygons
Lesson 18.4: Regular Polygons
1. Area of regular polygons Also consider: • Regular and irregular polygons

Lesson 18.5: Modeling Geometry on a Sphere
Lesson 18.5: Modeling Geometry on a Sphere

8	Unit 8 Probability
Module 19 - Introduction to Probability
Lesson 19.1: Probability and Set Theory		1. Sets, subsets, and complements 2. Theoretical and experimental probability
Lesson 19.1: Probability and Set Theory
1. Sets, subsets, and complements 2. Theoretical and experimental probability

Lesson 19.2: Permutations and Probability		1. Counting principle 2. Permutations 3. Find probabilities using permutations Also consider: • Outcomes of compound events • Factorials • Permutation notation
Lesson 19.2: Permutations and Probability
1. Counting principle 2. Permutations 3. Find probabilities using permutations Also consider: • Outcomes of compound events • Factorials • Permutation notation

Lesson 19.3: Combinations and Probability		1. Combination notation 2. Find probabilities using combinations
Lesson 19.3: Combinations and Probability
1. Combination notation 2. Find probabilities using combinations

Lesson 19.4: Mutually Exclusive and Overlapping Events		1. Find probabilities using two-way frequency tables 2. Find probabilities using the addition rule
Lesson 19.4: Mutually Exclusive and Overlapping Events
1. Find probabilities using two-way frequency tables 2. Find probabilities using the addition rule
Module 20 - Conditional Probability and Independence of Events
Lesson 20.1: Conditional Probability		1. Find conditional probabilities using two-way frequency tables 2. Find conditional probabilities
Lesson 20.1: Conditional Probability
1. Find conditional probabilities using two-way frequency tables 2. Find conditional probabilities

Lesson 20.2: Independent Events		1. Identify independent events 2. Independence and conditional probability
Lesson 20.2: Independent Events
1. Identify independent events 2. Independence and conditional probability

Lesson 20.3: Dependent Events		1. Identify independent and dependent events 2. Probability of independent and dependent events
Lesson 20.3: Dependent Events
1. Identify independent and dependent events 2. Probability of independent and dependent events

Checkpoint opportunity		1. Checkpoint: Probability
Checkpoint opportunity
1. Checkpoint: Probability

This document includes the IXL® skill alignments to Houghton Mifflin Harcourt's HMH Texas curriculum. IXL provides skill alignments as a service to teachers, students, and parents. The skill alignments are provided by IXL and are not affiliated with, sponsored by, reviewed, approved or endorsed by Houghton Mifflin Harcourt or any other third party. IXL® and IXL Learning® are registered trademarks of IXL Learning, Inc. All other intellectual property rights (e.g., unregistered and registered trademarks and copyrights) are the property of their respective owners.