Activities/Abacus/Worksheet - Revision history

Rdrsadhu: Add header

2018-06-15T03:48:44Z

Add header

← Older revision		Revision as of 23:48, 14 June 2018
Line 1:		Line 1:
	~~Wiki Page Status: <span style~~=~~"color:#ff0000"> DEPRECATED <~~/~~span>~~		== Abacus/Worksheet ==

	Read at https://help.sugarlabs.org/abacus_worksheet.html		Read at https://help.sugarlabs.org/abacus_worksheet.html

	The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/abacus_worksheet.rst GitHub]		The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/abacus_worksheet.rst GitHub]

Rdrsadhu: Migrate to GitHub

2018-03-27T05:52:23Z

Migrate to GitHub

← Older revision		Revision as of 01:52, 27 March 2018
Line 1:		Line 1:
	=~~= Fractions ==~~		Wiki Page Status: <span style="color:#ff0000"> DEPRECATED </span>
	~~Suggested for school years 6 - 8~~

			Read at https://help.sugarlabs.org/abacus_worksheet.html

	~~===~~The ~~Fraction abacus===~~		The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/abacus_worksheet.rst GitHub]
	~~Start Abacus [[File:Abacus-icon.png]],~~


	~~select the Fraction abacus.~~

	~~[[File:Functionabacus.jpg]]~~


	~~Slide one of the 1/2 beads~~ to ~~represent 1/2~~

	[~~[File~~:~~Abacus1of2.jpg]]~~


	~~Another way to represent 1~~/~~2 is to slide half of another string of fraction beads, for example slide 2 of the 1~~/~~4 beads~~. ~~That is (2 x 1)~~/~~4 = 2~~/~~4 = 1/2~~

	~~[[File:Abacus2of4.jpg]]~~


	~~How many ways can you make 1/2, remember you can use 2 strings eg. 1/3 + 1/6 = 1/2~~

	~~[[File:Abacus3p6.jpg]]~~


	~~If using just one string, only some of the strings of beads can be used to make 1/2. Which ones? Why?~~


	Show that the solutions which use more than one string are correct, use the Lowest Common Denominator ([http://en.wikipedia.org/wiki/Lowest_common_denominator LCD]) method, for example for the case of 1/3 +1/6 = 1/2
	~~1/3 + 1/6 =~~
	~~2/6 + 1~~/~~6 =~~
	~~(2+1)/6 =~~
	~~3/6 =~~
	~~1/2~~

	~~How do you know if you have found all the solutions?~~


	~~Find all the ways to make 1/3 and 2/3~~

	~~===Other representations of fraction addition===~~
	~~Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.~~

	~~[[File:1on2piedraw.jpg]] [[File:Fractionpieturtle.jpg]] [[File:Fractionpiesocialcalc.jpg]]~~

	~~===The Caacupé abacus===~~
	~~Load the Caacupé abacus [[File:Abacuscaacupe.jpg]]~~

	~~It can represent negative whole numbers and fractions. 1~~/~~2 can be represented as 10 - 9 - 2~~/~~3 + 1~~/6

	~~[[File:Abacus10931~~.~~jpg]]~~


	~~How many different ways can you represent 1/2 , 1/3, 2/3~~

	~~How do you know when you have found them all?~~


	~~Similar to the Pie chart, can you think of a way to visually represent the addition of positive and negative fractions?~~


	~~see the [[Activities/Abacus/Worksheet/Answersheet \| answersheet]~~]

Tonyforster at 06:12, 18 May 2011

2011-05-18T06:12:13Z

← Older revision		Revision as of 02:12, 18 May 2011
Line 1:		Line 1:
	== Fractions ==		== Fractions ==
			Suggested for school years 6 - 8


	===The Fraction abacus===		===The Fraction abacus===
	Start Abacus [[File:Abacus-icon.png]],		Start Abacus [[File:Abacus-icon.png]],

Tonyforster: /* The Caacupé abacus */

2011-04-06T04:02:53Z

The Caacupé abacus

← Older revision		Revision as of 00:02, 6 April 2011
Line 55:		Line 55:

	How do you know when you have found them all?		How do you know when you have found them all?


			Similar to the Pie chart, can you think of a way to visually represent the addition of positive and negative fractions?


	see the [[Activities/Abacus/Worksheet/Answersheet \| answersheet]]		see the [[Activities/Abacus/Worksheet/Answersheet \| answersheet]]

Tonyforster: /* The Fraction abacus */

2011-04-06T02:56:58Z

The Fraction abacus

← Older revision		Revision as of 22:56, 5 April 2011
Line 39:		Line 39:
	Find all the ways to make 1/3 and 2/3		Find all the ways to make 1/3 and 2/3

			===Other representations of fraction addition===
	Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.		Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.

Tonyforster: /* The Fraction abacus */

2011-04-06T02:43:53Z

The Fraction abacus

← Older revision		Revision as of 22:43, 5 April 2011
Line 42:		Line 42:
	Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.		Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.

	[[File:1on2piedraw.jpg]] [[File:Fractionpieturtle.jpg]]		[[File:1on2piedraw.jpg]] [[File:Fractionpieturtle.jpg]] [[File:Fractionpiesocialcalc.jpg]]

	===The Caacupé abacus===		===The Caacupé abacus===

Tonyforster: /* The Fraction abacus */

2011-04-06T02:40:08Z

The Fraction abacus

← Older revision		Revision as of 22:40, 5 April 2011
Line 42:		Line 42:
	Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.		Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.

	[[File:1on2piedraw.jpg]]		[[File:1on2piedraw.jpg]] [[File:Fractionpieturtle.jpg]]

	===The Caacupé abacus===		===The Caacupé abacus===

Tonyforster: /* The Fraction abacus */

2011-04-06T02:06:44Z

The Fraction abacus

← Older revision		Revision as of 22:06, 5 April 2011
Line 27:		Line 27:


	Show that the solutions which use more than one string are correct, use the Lowest Common Denominator [http://en.wikipedia.org/wiki/Lowest_common_denominator(LCD)] method, for example for the case of 1/3 +1/6 = 1/2		Show that the solutions which use more than one string are correct, use the Lowest Common Denominator ([http://en.wikipedia.org/wiki/Lowest_common_denominator LCD]) method, for example for the case of 1/3 +1/6 = 1/2
	1/3 + 1/6 =		1/3 + 1/6 =
	2/6 + 1/6 =		2/6 + 1/6 =

Tonyforster: /* The Fraction abacus */

2011-04-06T02:05:50Z

The Fraction abacus

← Older revision		Revision as of 22:05, 5 April 2011
Line 27:		Line 27:


	Show that the solutions which use more than one string are correct, use the Lowest Common Denominator (~~LCM~~) method, for example for the case of 1/3 +1/6 = 1/2		Show that the solutions which use more than one string are correct, use the Lowest Common Denominator [http://en.wikipedia.org/wiki/Lowest_common_denominator(LCD)] method, for example for the case of 1/3 +1/6 = 1/2
	1/3 + 1/6 =		1/3 + 1/6 =
	2/6 + 1/6 =		2/6 + 1/6 =

Tonyforster: /* The Fraction abacus */

2011-04-06T01:52:46Z

The Fraction abacus

← Older revision		Revision as of 21:52, 5 April 2011
Line 41:		Line 41:

	Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.		Draw your solutions as pie charts, you can use Paint, TurtleArt, Socialcalc or Gnumeric in Gnome.

			[[File:1on2piedraw.jpg]]

	===The Caacupé abacus===		===The Caacupé abacus===