id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
flr-49	Lee, Kerry; Khng, Kiat Hui; Ng, Swee Fong; Ng, Jeremy Lan Kong	Longer bars for bigger numbers? children’s usage and understanding of graphical representations of algebraic problems	2013	16	.pdf	application/pdf	8288	538	60	In Singapore, primary school students are taught to use bar diagrams to represent known and unknown values in algebraic word problems. It was given only to secondary school children as the primary school children have not been exposed to letter symbols.	cache/flr-49.pdf	txt/flr-49.txt