Abstract
A study was made of the formal representation of blue and yellow color mixtures as rational numbers and its effect on students' ability to solve ratio problems comparing these mixtures. Children in grade 7, 8, and 9 were first given comparison of mixtures problems with an opportunity to watch the actual outcome and check their predictions (Task 1). They were then asked to solve similar problems, after being introduced to the representation of the mixtures as rational numbers (Task 2), and finally tested on their ability to reach a general solution to problems of the same nature (Task 3). Analysis of the various strategies employed by the students on the different tasks showed that a substantial number of students improved their performance as a result of introducing the formal representation of the problems.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
