Builder Series

# Geometric Construction

These activities by Michelle DuToit demonstrate geometric construction using Mathomat V7 using features such as the TGT and Arcbuilder scale.

Geometric Construction

## These activities use the many geometric construction functions within Mathomat V7

These printable activities show how to replace compass and straight edge construction using Mathomat. They are based on the Mathomat Builder manual activities and use Professor Chris Tisdell's TGT, the Arcbuilder scale, protractor and perpendicular lines in the Mathomat V7.

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### Lines, Rays and Segments

#### Using symbols on lines to indicate line types

Here you will learn the ways a line is marked that will help us indicate the type of line it is which plays an important part in construction.

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### Constructing Perpendicular Lines

#### Using two different tools to draw perpendicular lines

In this activity you will learn how to use two different tools to draw perpendicular lines - the protractor and the arc builder scale.

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### Constructing Arcs with Arcbuilder 1

#### Using the Arcbuilder scale to construct arcs

Here we use the Arcbuilder scale for constructing arcs. Follow the instructions and learn how to do precision, hands-on, construction work.

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### Constructing arcs with Arcbuilder 2

#### Continue with steps 7 to 10 of instructions for using Arcbuilder in Mathomat

Print the two worksheets for this investigation. Continuing from the previous activity, complete the drawings for steps 7 to 10 of the instructions.

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### Constructing perpendicular and parallel lines with Mathomat

#### Using different tools in the Mathomat to construct perpendicular and parallel lines

Print the two activity sheets in this investigation and use them to draw parallel lines. In the first activity we use Tisdell's Geometry Tool (TGT) in Mathomat.

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### Drawing circles using Arcbuilder and angles using circles in Mathomat

#### Geometric construction using Mathomat

Print the two activity sheets in this investigation and use with your Mathomat to draw circles using Arc builder and angles using circles.

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### Halving an angle with TGT and finding the midpoint of a circle with the Mathomat protractor

#### Geometric constructions using Mathomat

Print the two activity sheets in this investigation, and use with your Mathomat for geometric constructions. We use the TGT and protractor as tools.

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### Constructing a 30° Angle

#### Using the protractor and Arcbuilder to construct an angle

In this activity you will learn the geometric construction of a 30° angle using two different tools - the protractor and Arcbuilder.

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### Constructing a 30° angle using the Arcbuilder tool and TGT in Mathomat

#### Constructing 30 degree angles using Mathomat

Print the two activity pages from this investigation. Use them with your Mathomat to construct a drawing of a 60° angle using Arcbuilder and TGT in Mathomat.

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### Constructing a 60° Angle

#### Using the Arcbuilder and TGT to construct an angle

This activity uses two different tools for geometric construction of a 60° angle without the use of a protractor - the Arcbuilder and TGT.

Online Store

### Purchase some of our most popular products from the official Mathomat online store

#### Finding Hidden Angles, a Mathomat Adventure

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The Mathomat V7 template with an illustrated manual of investigations that familiarise students with the use of Mathomat for creative drawing.

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A series of lessons for secondary school which make use of available classroom materials, such as the Mathomat template and geometry software.

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This 116 page book of investigations with Mathomat reveal the passion for teaching of Craig Young, the designer of the original Mathomat.
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### Lesson Plans

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Get a glimpse of the tremendous potential for using Mathomat as an aid to teaching mathematics.

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#### Watch and learn from Pr. Chris Tisdell

Using a series of Mathomat products and templates, learn maths and geometry with Pr. Chris Tisdell.

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### Online Store

#### Visit the official Mathomat store

Purchase official Mathomat templates, booklets and teaching resources for your child or classroom.

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