Mathomat WB3

# Chalkboard Geometry: Perpendicular Line Construction

video tutorial part
6
of

## Learning Geometry with a Circle Arc Template

with

### Chris Tisdell

Mathematician & Educator

### Materials you will need:

Mathomat WB3 Template
Whiteboard or Blackboard
Whiteboard Markers or Chalk
Whiteboard / Blackboard Eraser

### What you will learn in this tutorial:

The geometric problem explored in this presentation involves constructing a perpendicular line segment to a given line segment that passes through a specified point on the given segment. This is a classic problem in geometry that has been studied for centuries. The challenge here is to achieve this construction accurately and safely, which is where the circle arc template comes in.

Chris begins by drawing a line segment AB and labelling its endpoints as A and B. The aim is to construct a line perpendicular to AB through a point C located on AB. To demonstrate this, he uses the circle arc template to draw an extended arc with centre C that intersects AB at two new points. The midpoint of DE, labelled as C, serves as the desired point of intersection for the perpendicular line segment.

The next steps involve forming a perpendicular bisector of DE which is constructed via a sequence of intersecting arcs whose points are joined to C via the straightedge.

### Chris Tisdell

Mathematician & Educator
Chris, a mathematician and educator, is an academic advisor to Mathomat. Chris approached us in 2021 with an interest in the circle templates in Mathomat...
Online Store

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

#### Finding Hidden Angles, a Mathomat Adventure

##### V7 template with 48 page student book
Template
\$
19.95
Use Mathomat with the finding hidden angles student book. Gain insight into the geometry of the world by understanding angle. Build confidence with maths.

#### Mathomat V7 Builder Pack

##### with 96 page student manual
Template
\$
19.95
The Mathomat V7 template with an illustrated manual of investigations that familiarise students with the use of Mathomat for creative drawing.

#### Mathomat V7 Explorer Pack

##### Template & 72 page student manual
Template
\$
19.95
The Mathomat V7 geometry template with 72 page illustrated student manual and MAC guide by Juliet Snape. Illustrated contexts for student directed learning.

#### Geometry & Beyond

##### with Mathomat
Publication
\$
24.95
A series of lessons for secondary school which make use of available classroom materials, such as the Mathomat template and geometry software.

#### Maths with Mathomat

##### Lesson Plans Years 4-9 & Beyond
Publication
\$
24.95
A series of comprehensive lesson plans developed to give teachers a glimpse of the potential for using Mathomat as an aid in the teaching of mathematics.

#### Text Book & Units of Work

##### with Mathomat
Publication
\$
24.95
This 116 page book of investigations with Mathomat reveal the passion for teaching of Craig Young, the designer of the original Mathomat.
01

### Lesson Plans

#### Learn to teach maths with Mathomat

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

02

### Video Tutorials

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

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

03

### Online Store

#### Visit the official Mathomat store

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

04