It is hard not to overemphasize the importance of mathematical literacy in our society (Swanson, Jerman, & Zheng, 2009). In everyday life situations we need to be on time, pay bills, follow directions or use maps, look at bus or train timetables, or comprehend instruction leaflets and expiry dates. A lack of mathematical literacy was found to affect people's ability to gain full-time employment and often restricted employment options to manual and often low-paying jobs (Dowker, 2005).
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