Highlights of this book
- 20 chapters, from “Points, Lines, Planes, Segments and Angles” to “Parabolas from Focus and Directrix, and Tangent Lines to a Circle”
- A Key facts box at the start of every chapter
- Diagrams with captions and numbered steps for each method
The book follows the order in which Geometry topics are usually taught: it opens with points, lines, planes, segments and angles and closes with parabolas from focus and directrix, and tangent lines to a circle. Each chapter fits on a few pages and lists the Common Core codes it covers, which makes it easy to match with the unit your child is studying in class.
Explanations are written as answers to real questions (“How do you…?”, “What is…?”), with a labeled figure whenever a picture helps more than a sentence. The table of contents is clickable, and bookmarks let you jump to any chapter on screen.
Who is it for?
For a student taking high school Geometry, usually in tenth grade, and for the parents, tutors and homeschooling families who work with them.
The contents, chapter by chapter
For each chapter, its Common Core codes and its length.
| Chapter | Common Core standards | Pages |
|---|---|---|
| 1Points, Lines, Planes, Segments and Angles | G-CO.A.1 | 4 p. |
| 2Logic and Two-Column Proofs | G-CO.C.9 | 4 p. |
| 3Parallel Lines, Transversals and Proofs | G-CO.C.9 | 5 p. |
| 4Rigid Transformations | G-CO.A.2, G-CO.A.3, G-CO.A.4, G-CO.A.5 | 5 p. |
| 5Congruent Triangles: SSS, SAS, ASA, AAS and HL | G-CO.B.6, G-CO.B.7, G-CO.B.8, G-SRT.B.5 | 4 p. |
| 6Triangle Theorems and Points of Concurrency | G-CO.C.10, G-C.A.3 | 5 p. |
| 7Parallelograms and Special Quadrilaterals | G-CO.C.11 | 5 p. |
| 8Geometric Constructions | G-CO.D.12, G-CO.D.13 | 5 p. |
| 9Dilations and Similarity Transformations | G-SRT.A.1, G-SRT.A.2, G-SRT.A.3 | 4 p. |
| 10Similar Triangles and Proportions | G-SRT.B.4, G-SRT.B.5 | 4 p. |
| 11Right Triangle Trigonometry | G-SRT.C.6, G-SRT.C.7, G-SRT.C.8 | 5 p. |
| 12Law of Sines, Law of Cosines and Triangle Area | G-SRT.D.9, G-SRT.D.10, G-SRT.D.11 | 4 p. |
| 13Coordinate Geometry Proofs | G-GPE.B.4, G-GPE.B.5, G-GPE.B.6, G-GPE.B.7 | 5 p. |
| 14Circles: Chords, Arcs and Inscribed Angles | G-C.A.1, G-C.A.2 | 4 p. |
| 15Arc Length, Sector Area and Radians | G-C.B.5 | 5 p. |
| 16Equation of a Circle | G-GPE.A.1 | 5 p. |
| 17Area and Volume Formulas | G-GMD.A.1, G-GMD.A.3 | 4 p. |
| 18Cross Sections, Solids of Rotation and Geometric Modeling | G-GMD.B.4, G-MG.A.1, G-MG.A.2, G-MG.A.3 | 4 p. |
| 19Probability: Independence, Conditional Probability and Fair Decisions | S-CP.A.1, S-CP.A.2, S-CP.A.3, S-CP.A.4, S-CP.A.5, S-CP.B.6, S-CP.B.7, S-CP.B.8, S-CP.B.9, S-MD.B.6, | 4 p. |
| 20Parabolas from Focus and Directrix, and Tangent Lines to a Circle | G-GPE.A.2, G-C.A.4 | 5 p. |
Look inside: two sample pages
Pages from the book exactly as they print. Click a page to open it full size.
How to use it in four steps
Preview
Read the Key facts box before the lesson is taught in class.
Read
Go through each section slowly and redraw the diagrams on scratch paper.
Explain
Ask your child to explain one key fact in their own words.
Practice
Move on to the worksheets of the same chapter while the lesson is fresh.
Questions from parents
How many chapters are in the Geometry lessons book?
20 chapters on 92 pages, each with its Common Core codes.
Are there exercises in this book?
The lessons explain and show examples. For practice, the Geometry Math Worksheets with Answer Keys book follows the same chapters, with an answer key.
Does it replace the school textbook?
It complements it: use it at home to review, practice or get ahead, whatever textbook the teacher uses.
Do I need the other two books of the grade?
No, each book works on its own. Together, the lessons, worksheets and tests of Geometry cover the three steps: understand, practice, check.
How is the book delivered?
Nothing is shipped: as soon as PayPal confirms the payment, your download page opens, and the link is also sent by email.
Still have a question? Read the general FAQ or write to us from the Mathovore contact page.
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