RightStart Geometry Lessons [SCM]
by Joan A. Cotter Author
Basic geometry for the middle school child (and older) using the tool set of drawing board, T-square, triangles, compass, and angle ruler. Use with Geometry worksheets and solutions books.
Additional Details
- Resource Type
- Book
- Print Status
- In Print
- Lessons
- 142
- Publisher
- Activities for Learning
- Edition
- Preliminary Edition
- Copyright
- 2005
- URL
- http://www.alabacus.com/
Lessons
- 1 Getting Started
- 2 Drawing Diagonals
- 3 Drawing Stars
- 4 Equilateral Triangles into Halves
- 5 Equilateral Triangles into Sixths & Thirds
- 6 Equilateral Triangles into Fourths & Eighths
- 7 Equilateral Triangles into Ninths
- 8 Hexagrams and Solomon's Seal
- 9 Equilateral Triangles into Twelfths
- 10 Measuring Perimeter in Centimeters
- 11 Drawing Parallelograms in Centimeters
- 12 Measuring Perimeter in Inches
- 13 Drawing Parallelograms in Inches
- 14 Drawing Rectangles
- 15 Drawing Rhombuses
- 16 Drawing Squares
- 17 Classifying Quadrilaterals
- 18 The Fraction Chart
- 19 Patterns in Fractions
- 20 Measuring With Sixteenths
- 21 A Fraction of Geometry Figures
- 22 Making the Whole
- 23 Ratios and Nested Squares
- 24 Square Centimeters
- 25 Square Inches
- 26 Area of a Rectangle
- 27 Comparing Areas of Rectangles
- 28 Product of a Number and Two More
- 29 Area of Consecutive Squares
- 30 Perimeter Formula for Rectangles
- 31 Area of a Parallelogram
- 32 Comparing Calculated Areas of Parallelograms
- 33 Area of a Triangle
- 34 Comparing Calculated Areas of Triangles
- 35 Converting Inches to Centimeters
- 36 Name that Figure
- 37 Finding the Areas of More Triangles
- 38 Area of Trapezoids
- 39 Area of Hexagons
- 40 Area of Octagons
- 41 Ratios of Areas
- 42 Measuring Angles
- 43 Supplementary and Vertical Angles
- 44 Measure of the Angles in a Polygon
- 45 Classifying Triangles by Sides and Angles
- 46 External Angles of a Triangle
- 47 Angles Formed With Parallel Lines
- 48 Triangles With Congruent Sides (SSS)
- 49 Other Congruent Triangles (SAS, ASA)
- 50 Side and Angle Relationships in Triangles
- 51 Medians in Triangles
- 52 More About Medians in Triangles
- 53 Midpoints in a Triangle
- 54 Rectangles Inscribed in a Triangle
- 55 Connecting Midpoints in a Quadrilateral
- 56 Introducing the Pythagorean Theorem
- 57 Squares on Right Triangles
- 58 Proofs of the Pythagorean Theorem
- 59 Finding Square Roots
- 60 More Right Angle Problems
- 61 The Square Root Spiral
- 62 Circle Basics
- 63 Ratio of Circumference to Diameter
- 64 Inscribed Polygons
- 65 Tangents to Circles
- 66 Circumscribed Polygons
- 67 Pi, a Special Number
- 68 Circle Designs
- 69 Rounding Edges with Tangents
- 70 Tangent Circles
- 71 Bisecting Angles
- 72 Perpendicular Bisectors
- 73 The Amazing Nine-Point Circle
- 74 Drawing Arcs
- 75 Angles 'n Arcs
- 76 Arc Length
- 77 Area of a Circle
- 78 Finding the Area of a Circle
- 79 Finding More Area
- 80 Pizza Problems
- 81 Revisiting Tangrams
- 82 Aligning Objects
- 83 Reflecting
- 84 Rotating
- 85 Making Wheel Designs
- 86 Identifying Reflections & Rotations
- 87 Translations
- 88 Transformations
- 89 Double Reflections
- 90 Finding the Line of Reflection
- 91 Finding the Center of Rotation
- 92 More Double Reflections
- 93 Angles of Incidence and Reflection
- 94 Lines of Symmetry
- 95 Rotation Symmetry
- 96 Symmetry Connections
- 97 Frieze Patterns
- 98 Introduction to Tessellations
- 99 Two Pentagon Tessellations
- 100 Regular Tessellations
- 101 Semiregular Tessellations
- 102 Demiregular Tessellations
- 103 Pattern Units
- 104 Dual Tessellations
- 105 Tartan Plaids
- 106 Tessellating Triangles
- 107 Tessellating Quadrilaterals
- 108 Escher Tessellations
- 109 Tessellation Summary & Mondrian Art
- 110 Box Fractal
- 111 Sierpinski Triangle
- 112 Koch Snowflake
- 113 Cotter Tens Fractal
- 114 Similar Triangles
- 115 Fractions on the Multiplication Table
- 116 Cross Multiplying on the Multiplication Table
- 117 Measuring Heights
- 118 Golden Ratio
- 119 More Golden Goodies
- 120 Fibonacci Sequence
- 121 Fibonacci Numbers and Phi
- 122 Golden Ratios and Other Ratios Around Us
- 123 Napoleon's Theorem
- 124 Pick's Theorem
- 125 Pick's Theorem With the Stomachion
- 126 Pick's Theorem and Pythagorean Theorem
- 127 Estimating Area with Pick's Theorem
- 128 Distance Formula
- 129 Euler Paths
- 130 Using Ratios to Find Sides of Triangles
- 131 Basic Trigonometry
- 132 Solving Trig Problems
- 133 Comparing Calculators
- 134 Solving Problems With a Scientific Calculator
- 135 Angle of Elevation
- 136 More Angle Problems
- 137 Introduction to Sine Waves
- 138 Solids and Polyhedrons
- 139 Nets of Cubes
- 140 Volume of Cubes
- 141 Volume of Boxes
- 142 Volume of Prisms
- 143 Diagonals in a Rectangular Prism
- 144 Cylinders
- 145 Cones
- 146 Pyramids
- 147 Polygons 'n Polyhedrons
- 148 Tetrahedron in a Cube
- 149 Platonic Solids
- 150 View of the Platonic Solids
- 151 Duals of the Platonic Solids
- 152 Surface Area and Volume of Spheres
- 153 Plane Symmetry in Polyhedra
- 154 Rotating Symmetry in Polyhedra
- 155 Circumscribed Platonic Solids
- 156 Cubes in a Dodecahedron
- 157 Stella Octangula
- 158 Truncated Tetrahedra
- 159 Truncated Octahedron
- 160 Truncated Isocahedron
- 161 Cuboctahedron
- 162 Rhombicuboctahedron
- 163 Icosidodecahedron
- 164 Snub Polyhedra
- 165 Archimedean Solids
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