Obtuse Angle in British Sign Language (BSL)

The sign for “obtuse angle” in British Sign Language (BSL) is commonly used in education, particularly in mathematics and geometry discussions. This sign helps convey concepts about angles that are more than 90 degrees but less than 180 degrees, making it essential in classroom settings and everyday conversations about shapes and measurements.

How to Sign “Obtuse Angle” in BSL

1. Start with your dominant hand in a flat handshape (like a ‘B’ handshape) and position it in front of you at about waist height.
2. With your other hand, form a similar flat handshape and place it slightly above the first hand, angled to indicate the obtuse angle.
3. Using your non-dominant hand as a base, tilt your dominant hand to show the angle visually. Ensure that the two hands form an angle greater than 90 degrees.
4. Maintain eye contact with your audience and use facial expressions to emphasise the concept, perhaps raising your eyebrows to indicate that this angle is more significant than a right angle.

Common Mistakes

• Confusing the hand shapes; some learners may mistakenly use a fist or a different shape instead of the flat handshape.
• Not showing the angle clearly; learners might not tilt their dominant hand enough to represent the obtuse angle accurately.
• Neglecting facial expressions, which can lead to a lack of clarity in conveying the meaning of the sign.

BSL vs ASL

In BSL, the sign for “obtuse angle” involves using both hands to visually represent the angle, with a clear focus on the spatial relationship between the hands. In contrast, American Sign Language (ASL) may use a different handshape and movement, focusing more on a single hand to represent the angle. This highlights the distinct grammar and structure of each signing system.

Related Signs

• Acute Angle – A sign for an angle that is less than 90 degrees.
• Right Angle – Used to show an angle of exactly 90 degrees.
• Supplementary Angle – Refers to two angles that add up to 180 degrees.
• Angle – A general term for any angle.
• Geometry – Related to the study of shapes and their properties.

Frequently Asked Questions

How can I use “obtuse angle” in a BSL sentence?

You can use “obtuse angle” in a sentence like: “THIS ANGLE (show sign) OBTUSE.” This follows the topic-comment structure typical in BSL.

Are there regional variations for this sign?

While the sign for “obtuse angle” is generally consistent across the UK, some areas may have slight variations in handshape or movement. It’s always good to observe local signing.

What is a similar sign to “obtuse angle”?

The sign for “acute angle” is a similar sign, but it shows an angle less than 90 degrees, usually with a tighter hand position.

What tips do you have for learning this sign?

Practice in front of a mirror to ensure your hand shapes and angles are correct. Also, try to incorporate facial expressions to enhance your signing.

Can I use this sign in everyday conversation?

Yes, especially in discussions involving geometry, mathematics, or even when describing shapes in real life. It’s helpful to know for educational contexts.

Is this sign used in schools?

Absolutely, it’s commonly used in schools during math lessons, especially in geometry classes where angles are discussed.