Reading a clock - Revision history

Riegler: Changed categories.

2026-01-22T20:41:08Z

Changed categories.

← Older revision		Revision as of 22:41, 22 January 2026
Line 29:		Line 29:

	<references />		<references />
			[[Category:Reading]]

Riegler: -typos

2025-07-10T10:10:30Z

-typos

← Older revision		Revision as of 12:10, 10 July 2025
Line 1:		Line 1:
	'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] clock reading often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): [[The Decoding Clock Reading Activity]]. Didaktiknachrichten, Issue ~~January~~ 2025~~, in press<br />~~</ref>		'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] clock reading often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): [[The Decoding Clock Reading Activity]]. Didaktiknachrichten, Issue July 2025</ref>
	[[File:Reading a clock 1741765815651.jpg\|thumb\|266x266px\|Clock from 1754 at Irsee Abbey, Germany. What time does it show?]]		[[File:Reading a clock 1741765815651.jpg\|thumb\|266x266px\|Clock from 1754 at Irsee Abbey, Germany. What time does it show?]]

Line 9:		Line 9:
	* There are two scales on an analog clock. A coarse one counting the hours from 1 to 12 in steps of 30° and a finer one counting minutes and seconds from 0 to 59 in steps of 6°.		* There are two scales on an analog clock. A coarse one counting the hours from 1 to 12 in steps of 30° and a finer one counting minutes and seconds from 0 to 59 in steps of 6°.
	* If there is a fast moving hand, ignore this one for the time being, although it typically catches one's attention first.		* If there is a fast moving hand, ignore this one for the time being, although it typically catches one's attention first.
	* To determine the hour, locate the hour hand. This is usually the shortest hand. Read the position of this hand on the scale from 1 to 12. If the hand is between two such ~~position~~ take the smaller value.		* To determine the hour, locate the hour hand. This is usually the shortest hand. Read the position of this hand on the scale from 1 to 12. If the hand is between two such positions take the smaller value.
	* To determine the minutes, locate the minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.		* To determine the minutes, locate the minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.
	* While the lengths of the hand usually allows to locate hour and minute hand, the length of the hands is neither a necessary nor a sufficient conidition. Actually there is a necessary relation between the angle of the two hands: The fractional part by which the minute hand is located between two adjacent hour markers is determined by the position of the minute hand. For instance, at 5:00 the hour hand is exactly at 5, at 5:15 it moved a quarter of the disctance to 6, while at 5:30 it is exactly between 5 and 6.<ref name=":0" />		* While the lengths of the hand usually allows to locate hour and minute hand, the length of the hands is neither a necessary nor a sufficient conidition. Actually there is a necessary relation between the angle of the two hands: The fractional part by which the minute hand is located between two adjacent hour markers is determined by the position of the minute hand. For instance, at 5:00 the hour hand is exactly at 5, at 5:15 it moved a quarter of the disctance to 6, while at 5:30 it is exactly between 5 and 6.<ref name=":0" />

Riegler: +clarifying language

2025-03-26T11:43:05Z

+clarifying language

← Older revision		Revision as of 13:43, 26 March 2025
Line 1:		Line 1:
	'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): [[The Decoding Clock Reading Activity]]. Didaktiknachrichten, Issue January 2025, in press<br /></ref>		'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] clock reading often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): [[The Decoding Clock Reading Activity]]. Didaktiknachrichten, Issue January 2025, in press<br /></ref>
	[[File:Reading a clock 1741765815651.jpg\|thumb\|266x266px\|Clock from 1754 at Irsee Abbey, Germany. What time does it show?]]		[[File:Reading a clock 1741765815651.jpg\|thumb\|266x266px\|Clock from 1754 at Irsee Abbey, Germany. What time does it show?]]

Line 9:		Line 9:
	* There are two scales on an analog clock. A coarse one counting the hours from 1 to 12 in steps of 30° and a finer one counting minutes and seconds from 0 to 59 in steps of 6°.		* There are two scales on an analog clock. A coarse one counting the hours from 1 to 12 in steps of 30° and a finer one counting minutes and seconds from 0 to 59 in steps of 6°.
	* If there is a fast moving hand, ignore this one for the time being, although it typically catches one's attention first.		* If there is a fast moving hand, ignore this one for the time being, although it typically catches one's attention first.
	* To determine the hour, locate the hour hand. This is usually the ~~smallest~~ hand. Read the position of this hand on the scale from 1 to 12. If the hand is between two such position take the smaller value.		* To determine the hour, locate the hour hand. This is usually the shortest hand. Read the position of this hand on the scale from 1 to 12. If the hand is between two such position take the smaller value.
	* To determine the minutes, locate the minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.		* To determine the minutes, locate the minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.
	* While the lengths of the hand usually allows to locate hour and minute hand, the length of the hands is neither a necessary nor a sufficient conidition. Actually there is a necessary relation between the angle of the two hands: The fractional part by which the minute hand is located between two adjacent hour markers is determined by the position of the minute hand. For instance, at 5:00 the hour hand is exactly at 5, at 5:15 it moved a quarter of the disctance to 6, while at 5:30 it is exactly between 5 and 6.<ref name=":0" />		* While the lengths of the hand usually allows to locate hour and minute hand, the length of the hands is neither a necessary nor a sufficient conidition. Actually there is a necessary relation between the angle of the two hands: The fractional part by which the minute hand is located between two adjacent hour markers is determined by the position of the minute hand. For instance, at 5:00 the hour hand is exactly at 5, at 5:15 it moved a quarter of the disctance to 6, while at 5:30 it is exactly between 5 and 6.<ref name=":0" />

Riegler at 07:56, 12 March 2025

2025-03-12T07:56:12Z

← Older revision		Revision as of 09:56, 12 March 2025
Line 1:		Line 1:
	'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): [[The Decoding Clock Reading Activity]]. Didaktiknachrichten, Issue January 2025, in press<br /></ref>		'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): [[The Decoding Clock Reading Activity]]. Didaktiknachrichten, Issue January 2025, in press<br /></ref>
	[[File:Reading a clock 1741765815651.jpg\|thumb\|266x266px\|Clock from 1754 at Irsee Abbey, Germany]]		[[File:Reading a clock 1741765815651.jpg\|thumb\|266x266px\|Clock from 1754 at Irsee Abbey, Germany. What time does it show?]]

	==Description of bottleneck==		==Description of bottleneck==

Riegler: +image, link

2025-03-12T07:54:16Z

+image, link

← Older revision		Revision as of 09:54, 12 March 2025
Line 1:		Line 1:
	'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): The Decoding Clock Reading Activity. Didaktiknachrichten, Issue January 2025, in press<br /></ref>		'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): [[The Decoding Clock Reading Activity]]. Didaktiknachrichten, Issue January 2025, in press<br /></ref>
			[[File:Reading a clock 1741765815651.jpg\|thumb\|266x266px\|Clock from 1754 at Irsee Abbey, Germany]]

	==Description of bottleneck==		==Description of bottleneck==

Riegler: giving example

2025-03-12T07:46:45Z

giving example

← Older revision		Revision as of 09:46, 12 March 2025
Line 1:		Line 1:
	'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref>Riegler, P. (2025): The Decoding Clock Reading Activity. Didaktiknachrichten, Issue January 2025, in press<br /></ref>		'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref name=":0">Riegler, P. (2025): The Decoding Clock Reading Activity. Didaktiknachrichten, Issue January 2025, in press<br /></ref>

	==Description of bottleneck==		==Description of bottleneck==
Line 6:		Line 6:
	==<span class="mw-headline" id="Description_of_mental_tasks_needed_to_overcome_the_bottleneck">Description of mental tasks needed to overcome the bottleneck</span>==		==<span class="mw-headline" id="Description_of_mental_tasks_needed_to_overcome_the_bottleneck">Description of mental tasks needed to overcome the bottleneck</span>==

	* There are two scales on an analog clock. A coarse one counting from 1 to 12 in steps of 30° and a finer one counting from 0 to 59 in steps of 6°.		* There are two scales on an analog clock. A coarse one counting the hours from 1 to 12 in steps of 30° and a finer one counting minutes and seconds from 0 to 59 in steps of 6°.
	* If there is a fast moving hand, ignore this one for the time being, although it typically catches one's attention first.		* If there is a fast moving hand, ignore this one for the time being, although it typically catches one's attention first.
	* To determine the hour, locate hour hand. This is usually the smallest hand. Read the position of this hand on the scale from 1 to 12. If the hand is between two such position take the smaller value.		* To determine the hour, locate the hour hand. This is usually the smallest hand. Read the position of this hand on the scale from 1 to 12. If the hand is between two such position take the smaller value.
	* To determine the minutes, locate minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.		* To determine the minutes, locate the minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.
			* While the lengths of the hand usually allows to locate hour and minute hand, the length of the hands is neither a necessary nor a sufficient conidition. Actually there is a necessary relation between the angle of the two hands: The fractional part by which the minute hand is located between two adjacent hour markers is determined by the position of the minute hand. For instance, at 5:00 the hour hand is exactly at 5, at 5:15 it moved a quarter of the disctance to 6, while at 5:30 it is exactly between 5 and 6.<ref name=":0" />
	* If there is a fast moving hand, it indicates the seconds analogously to the minute hand.		* If there is a fast moving hand, it indicates the seconds analogously to the minute hand.

Riegler: +related work

2025-03-11T22:46:01Z

+related work

← Older revision		Revision as of 00:46, 12 March 2025
Line 11:		Line 11:
	* To determine the minutes, locate minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.		* To determine the minutes, locate minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.
	* If there is a fast moving hand, it indicates the seconds analogously to the minute hand.		* If there is a fast moving hand, it indicates the seconds analogously to the minute hand.

			==Related scholarly work on this bottleneck==
			The paper [[The Decoding Clock Reading Activity]] describes the origin of the activity and provides materials.

	==People interested in this bottleneck==		==People interested in this bottleneck==
Line 17:		Line 20:
	==<span class="mw-headline" id="Available_resources">Available resources</span> ==		==<span class="mw-headline" id="Available_resources">Available resources</span> ==

	* The paper [[The Decoding Clock Reading Activity]] describes the origin of the activity and provides materials.
	* [[commons:Category:Peter_Riegler\|Photographs of unusual clock faces]]		* [[commons:Category:Peter_Riegler\|Photographs of unusual clock faces]]

Riegler: -typos

2025-03-11T22:38:50Z

-typos

← Older revision		Revision as of 00:38, 12 March 2025
Line 1:		Line 1:
	'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref>Riegler, P. (2025): The Decoding Clock Reading Activity. Didaktiknachrichten, Issue January 2025, in press<br /></ref>		'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref>Riegler, P. (2025): The Decoding Clock Reading Activity. Didaktiknachrichten, Issue January 2025, in press<br /></ref>

	==Description of ~~Bottleneck~~==		==Description of bottleneck==
	People find it hard to read of the information coded by the hands of a clock and translate this information into a valid description of clock time.		People find it hard to read of the information coded by the hands of a clock and translate this information into a valid description of clock time.

Line 12:		Line 12:
	* If there is a fast moving hand, it indicates the seconds analogously to the minute hand.		* If there is a fast moving hand, it indicates the seconds analogously to the minute hand.

	==People interested in this ~~Bottleneck~~==		==People interested in this bottleneck==
	Christian Kautz, [[Peter Riegler]]		Christian Kautz, [[Peter Riegler]]

	==<span class="mw-headline" id="Available_resources">Available resources</span> ==		==<span class="mw-headline" id="Available_resources">Available resources</span> ==
	The paper [[The Decoding Clock Reading Activity]] describes the origin of the activity and provides materials.
			* The paper [[The Decoding Clock Reading Activity]] describes the origin of the activity and provides materials.
			* [[commons:Category:Peter_Riegler\|Photographs of unusual clock faces]]

	==References==		==References==

Riegler: +mental task

2025-03-11T22:33:52Z

+mental task

← Older revision		Revision as of 00:33, 12 March 2025
Line 1:		Line 1:
	'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref~~><span style="font-size:11.0pt;line-height:107%;~~		'''Reading an analog clock''' is typically hard for young learners in primary school as well as for people suffering from dementia.<ref>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref>Riegler, P. (2025): The Decoding Clock Reading Activity. Didaktiknachrichten, Issue January 2025, in press<br /></ref>
	~~font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:~~
	~~Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;~~
	~~mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:minor-bidi;~~
	~~mso-ansi-language:DE;mso-fareast-language:EN-US;mso-bidi-language:AR-SA"~~>Sunderland, T., Hill, J. L., Mellow, A. M., Lawlor, B. A., Gundersheimer, J., Newhouse, P. A., & Grafman, J. H. (1989). Clock drawing in Alzheimer's disease: a novel measure of dementia severity. ''Journal of the American Geriatrics society'', ''37''(8), 725-729.~~</span>~~</ref> In [[Decoding the Disciplines]] it often serves to exemplify the process of Decoding.<ref>Riegler, P. (2025): The Decoding Clock Reading Activity. Didaktiknachrichten, Issue January 2025, in press<br /></ref>

	==Description of Bottleneck==		==Description of Bottleneck==
	People find it hard to read of the information coded by the hands of a clock and translate this information into a valid description of clock time.		People find it hard to read of the information coded by the hands of a clock and translate this information into a valid description of clock time.

	== <span class="mw-headline" id="Description_of_mental_tasks_needed_to_overcome_the_bottleneck">Description of mental tasks needed to overcome the bottleneck</span> ==		==<span class="mw-headline" id="Description_of_mental_tasks_needed_to_overcome_the_bottleneck">Description of mental tasks needed to overcome the bottleneck</span>==
	~~<br />~~
			* There are two scales on an analog clock. A coarse one counting from 1 to 12 in steps of 30° and a finer one counting from 0 to 59 in steps of 6°.
			* If there is a fast moving hand, ignore this one for the time being, although it typically catches one's attention first.
			* To determine the hour, locate hour hand. This is usually the smallest hand. Read the position of this hand on the scale from 1 to 12. If the hand is between two such position take the smaller value.
			* To determine the minutes, locate minute hand. This is usually the larger hand. Read the position of this hand on the scale from 0 to 59.
			* If there is a fast moving hand, it indicates the seconds analogously to the minute hand.

	==People interested in this Bottleneck==		==People interested in this Bottleneck==
	Christian Kautz, [[Peter Riegler]]		Christian Kautz, [[Peter Riegler]]

	== <span class="mw-headline" id="Available_resources">Available resources</span> ==		==<span class="mw-headline" id="Available_resources">Available resources</span> ==
	The paper [[The Decoding Clock Reading Activity]] describes the origin of the activity and provides materials.		The paper [[The Decoding Clock Reading Activity]] describes the origin of the activity and provides materials.

	== References ==		==References==
	[[Category:Bottleneck]]		[[Category:Bottleneck]]
	[[Category:Every day skills]]		[[Category:Every day skills]]

			<references />

Riegler at 16:43, 14 January 2025

2025-01-14T16:43:12Z

← Older revision		Revision as of 18:43, 14 January 2025
Line 15:		Line 15:

	== <span class="mw-headline" id="Available_resources">Available resources</span> ==		== <span class="mw-headline" id="Available_resources">Available resources</span> ==
	The paper [[The Decoding Clock Reading Activity]] describes the origin of the		The paper [[The Decoding Clock Reading Activity]] describes the origin of the activity and provides materials.

	== References ==		== References ==



	~~<br />~~
	[[Category:Bottleneck]]		[[Category:Bottleneck]]
	[[Category:Every day skills]]		[[Category:Every day skills]]