A level may pertain-to learners.Logical formLearned from13 sentences. Teachers can be as learners.Logical formLearned from13 sentences. Learners can be vulnerable.Logical formLearned from13 sentences. Subgroups can be constituted-of-or-filled-with learners.Logical formLearned from13 sentences. Learners may construct knowledge.Logical formLearned from13 sentences. Levels can be constituted-of-or-filled-with learners.Logical formLearned from13 sentences. Characteristics may pertain-to learners.Logical formLearned from13 sentences. Learners can be with (learning difficulties).Logical formLearned from13 sentences. Learners can be flexible.Logical formLearned from13 sentences. Learners can be proficient.Logical formLearned from13 sentences. An experience may pertain-to a learner.Logical formLearned from13 sentences. Learners can be in grades.Logical formLearned from13 sentences. Use can be by learners.Logical formLearned from13 sentences. A learner can be mature.Logical formLearned from12 sentences. Learners may develop.Logical formLearned from12 sentences.