“…Romero et al (2009), proposed a web-based adaptive learning system for students who share the same learning style characteristics; a personalization system of e-learning to provide a learning path based on the difficulty of learning material (Chen, 2011). Some other studies that use the principle of fuzzy logic were student learning performance assessment (Badie et al, 2014; Subbotin & Voskoglou, 2014; Pandey et al, 2015; Yadav & Singh, 2011), concept maps (Hwang, 2003; Jong et al, 2004; Panjaburees et al, 2013), self-regulated learning (Van Seters et al, 2012), learning preference assessment (Lasfeto et al, 2018), assessment of learning motivation (Srivastava et al, 2010), remedial learning systems (Srivastava et al, 2010; Hsieh et al, 2013; Lin et al, 2016), and collaborative learning (Hadjileontiadou et al, 2004). The present study examines online learning strategies based on fuzzy expert systems that use fuzzy logic theory for an efficient learning process based on deficiencies or the ability to understand concepts and then to recommend learning materials that are most suitable for facilitating students more efficient learning.…”