A Guide to Assessment in Early Childhood. Retrieved from: http://www.k12.wa.us/earlylearning/pubdocs/assessment_print.pdf

Banchi, H. & Bell, R. (2008). The Many Levels of Inquiry. Retrieved from: www.ode.state.or.us/…/msef2010-level_of_inquiry.pdf

Beschomer and Hutchison (2013), iPads as a Literacy Teaching Tool in Early Childhood. Retrieved from: www.academia.edu/…/iPads_as_a_Literacy_Teaching_Too

Bordignon & Lam,( 2004) .Assessment in Early Childhood - Get Ready to Read! Retrieved from: www.getreadytoread.org/screening…for…/assessment-in-early-childhood

Bosse, S., Jacobs, G. & Anderson, T. L.(2009). Science in the Early Years, Young Children.pp 10-14. Retrieved from: http://www.naeyc.org/tyc/files/tyc/file/V4N5/Science%20in%20the%20Air.pdf

Cherry, K. Problem Solving Strategy. Retrieved from: http://psychology.about.com/od/cognitivepsychology/a/problem-solving.htm

Dimensions of Early Childhood, (2012). Vol 40.No. 2. Retrieved from: http://www.southernearlychildhood.org/upload/pdf/Volume_40_Issue_2_FINAL…

Framework for integrated early childhood development. (n.d.). Retrieved from: http://deta.qld.gov.au/earlychildhood/pdfs/framework.pdf

Harlan, J. D., & Rivkin, M. S.(2004). Science experiences for the early childhood years: An integrated affective approach. Upper Saddle River, NJ: Merrill.

How rocks are formed. Retrieved from: http://www.rocksforkids.com/RFK/howrocks.html

Kids Science Projects and Experiments: Light Travels. Retrieved from www.ducksters.com/…/experiment_light_travel.p..

Teori Locus of Control (2011)| Teori-Online. (n.d.). Retrieved from: http://teorionline.wordpress.com/2011/06/28/teori-locus-of-control/

Wardle, F. (2000). How children learn: The order in mess. Children and Families, 14(4), pp 82-83.