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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.

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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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