Difference between revisions of "Activities/Abacus/Worksheet"
< Activities | Abacus
Jump to navigation
Jump to search
Tonyforster (talk | contribs) |
Tonyforster (talk | contribs) |
||
| Line 18: | Line 18: | ||
| − | How many ways can you make 1/2, | + | How many ways can you make 1/2, remember you can use 2 strings eg. 1/3 + 1/6 = 1/2 |
| − | + | If using just one string, only some of the strings of beads can be used to make 1/2. Which ones? Why? | |
| + | |||
| + | |||
| + | How do you know if you have found all the solutions? | ||
| + | |||
| + | see the [[Activities/Abacus/Worksheet/Answersheet | answersheet]] | ||
Revision as of 03:44, 4 April 2011
Fractions
Start Abacus 
,
select the Fraction abacus.
Slide one of the 1/2 beads to represent 1/2
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
How many ways can you make 1/2, remember you can use 2 strings eg. 1/3 + 1/6 = 1/2
If using just one string, only some of the strings of beads can be used to make 1/2. Which ones? Why?
How do you know if you have found all the solutions?
see the answersheet