This document provides teaching materials for a math lesson on angles for students in Level 1 of the Future Kings education program. The lesson covers the parts of an angle, labeling angles, and types of angles including acute, obtuse, right, straight, reflex, and full angles. Students are asked to complete practice activities identifying and labeling different angles and a final project designing a miniature golf hole that incorporates all angle types. Their work will be graded based on accurately including and measuring required angles, correctly labeling angles and degrees of rotation, and the creativity of their golf hole design.

1. All materials copyright © 2011
Putter King LLC
All rights reserved
Unit #: 2011010102
Putter King LLC
Level 28 Shinagawa Intercity Tower A
2-15-1 Konan Minato-ku Tokyo, Japan
〒108-6028
Future KingsTM Education Program
Subject: Math
Level 1 (Prince)
For the teacherʼs guide and all answers
please contact info@putterking.com

2. Math
Level 1 - Prince
2

3. 3
Area of focus: angles
Topics covered:
• Parts of an angle
• Labeling angles
• Types of angles
Suggested time to complete (2 hrs):
• Teaching material (40 minutes)
• Practice activity (20 minutes)
• Final project (60 minutes)
Summary

4. 4
Parts of an Angle
The angle is the amount of rotation
between each arm
The corner point of an
angle is called the vertex
The two straight sides are called arms

5. 5
There are two main ways to label angles:
1. by using a lower-case letter like a or b, or a Greek letter like α (alpha) or θ (theta)
2. or by using three letters. The first and third letters represent points on each of the
arms that form one of the sides. The middle letter represents the vertex.
The example angle can be labeled as “θ”, “BAC”, or “CAB”
Labeling Angles
θ
A
B
C

6. 6
Acute Angle
Definition: an angle that is less than 90°
Right Angle
Definition: an angle that is exactly 90°
Straight Angle
Definition: an angle that is exactly 180°
Types of Angles

7. 7
Obtuse Angle
Definition: an angle that is greater
than 90° but less than 180°
Reflex Angle
Definition: an angle that is greater than 180°
Full Angle (Perigon)
Definition: an angle that is exactly 360°
Types of Angles

8. 8
Practice Activity
Find and correctly label the following:
• acute angle (3)
• obtuse angle (3)
• right angle (3)
• reflex angle (2)
• straight angle (2)
• full angle (1)

9. 9
Requirements
Design and label a miniature golf hole that includes at least:
• 1 acute angle
• 3 obtuse angles
• 2 right angles
• 1 reflex angle
• 2 straight angles
• 1 full angle
For full points, be sure to:
• label at least one vertex
• use a protractor to accurately measure and label the rotation
amount for 1 acute angle and 1 obtuse angle
• be creative!
Final Project

10. 10
Grading Rubric
Bogey
(70% - 79%)
Par
(80% - 89%)
Birdie
(90% - 100%)
Angles
• Student did not include all
required angles
• Student incorrectly measured
both angles
• Student forgot to include a
required angle
• Student incorrectly measured
an angle
• Student included all required
angles
• Student correctly measured at
least two angles (one acute and
one obtuse) using a protractor
Labels
• Student incorrectly labeled
more than one angle
• Student incorrectly labeled the
degrees of rotation for at least
one angle
• Student incorrectly labeled an
angle
• Student incorrectly labeled the
degrees of rotation for one
angle
• Student correctly labeled all
angles
• Student correctly labeled at
least one vertex
• Student correctly labeled the
degrees of rotation for at least
one acute angle and one obtuse
angle
Design
• Miniature golf hole design is
plain and simple
• Student lines and angles are
sloppy or incorrectly labeled
• Miniature golf hole design
does not exhibit creativity
• Miniature golf hole design is
playable
• Student lines and angles are
neatly drawn and labeled
• Miniature golf hole design is
playable and aesthetically
pleasing
• Student lines and angles are
neatly drawn and labeled
• Miniature golf hole design is
creative and original