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Level 1 - Prince

Area of focus: angles

Topics covered:

> Parts of an angle

> Labeling angles

> Types of angles

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- 1. For the teacherʼs guide and all answersplease contact info@putterking.com Future KingsTM Education Program Subject: Math Level 1 (Prince)Putter King LLC All materials copyright © 2011Level 28 Shinagawa Intercity Tower A Putter King LLC2-15-1 Konan Minato-ku Tokyo, Japan All rights reserved 108-6028 Unit #: 2011010102
- 2. MathLevel 1 - Prince 2
- 3. SummaryArea of focus: anglesTopics covered: • Parts of an angle • Labeling angles • Types of anglesSuggested time to complete (2 hrs): • Teaching material (40 minutes) • Practice activity (20 minutes) • Final project (60 minutes) 3
- 4. Parts of an Angle The two straight sides are called arms The angle is the amount of rotation between each armThe corner point of anangle is called the vertex 4
- 5. Labeling AnglesThere 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 thearms that form one of the sides. The middle letter represents the vertex.The example angle can be labeled as “θ”, “BAC”, or “CAB” B θ A C 5
- 6. Types of Angles Acute Angle Right AngleDeﬁnition: an angle that is less than 90° Deﬁnition: an angle that is exactly 90° Straight Angle Deﬁnition: an angle that is exactly 180° 6
- 7. Types of Angles Obtuse Angle Reﬂex AngleDeﬁnition: an angle that is greater Deﬁnition: an angle that is greater than 180°than 90° but less than 180° Full Angle (Perigon) Deﬁnition: an angle that is exactly 360° 7
- 8. Practice ActivityFind and correctly label the following:• acute angle (3)• obtuse angle (3)• right angle (3)• reﬂex angle (2)• straight angle (2)• full angle (1) 8
- 9. Final ProjectRequirementsDesign 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 angleFor 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! 9
- 10. Grading Rubric Bogey Par Birdie (70% - 79%) (80% - 89%) (90% - 100%) • Student did not include all • Student forgot to include a • Student included all required angles required angles required angleAngles • Student incorrectly measured • Student incorrectly measured • Student correctly measured at least two angles (one acute and both angles an angle one obtuse) using a protractor • Student correctly labeled all • Student incorrectly labeled • Student incorrectly labeled an angles more than one angle angle • Student correctly labeled atLabels • Student incorrectly labeled the • Student incorrectly labeled the least one vertex labeled the degrees of rotation for at least degrees of rotation for one • Student correctly degrees of rotation for at least one angle angle one acute angle and one obtuse angle • Miniature golf hole design is • Miniature golf hole design is playable and aesthetically plain and simple • Miniature golf hole design is pleasing • Student lines and angles are playableDesign sloppy or incorrectly labeled • Student lines and angles are • Student lines and angles are neatly drawn and labeled • Miniature golf hole design neatly drawn and labeled • Miniature golf hole design is does not exhibit creativity creative and original 10

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