{'fraction_non_alphanumeric': 0.01694915254237288, 'fraction_numerical': 0.0, 'mean_word_length': 4.811475409836065, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Getting Ready for Arithmetic: Prerequisites for Learning to Add

• Most children who enter kindergarten bring with them a readiness to begin formal arithmetic. By contrast, many children with handicaps have to be taught what others have absorbed through experience. This article describes what a child must know before he or she is ready to learn addition. In the following sequence some steps are essential. They need to be well established before the pupil is likely to advance much farther on the continuum. Other steps are desirable but not necessarily required to be learned at that point. And, like all developmental outlines, the sequence presented holds true for most but not all successful learners.