기본 개념부터 응용문제, 심화문제까지 골고루 들어있어 요것만 순서대로 풀어도학교 공부는 엄청 쉬워하더라고요
또한 응용문제같은건 QR코드를 이용해 동영상으로 문제풀이도 볼수 있어요
전 정답지에서 빠른정답으로 채점하고 사실 초4되니 전 어떻게 푸는지 알지만 전문 선생님이 아니어서 설명해주기 어려운부분은 정답지 자세한 풀이를 보고 설명하고 더 까다로운건 QR코드 찍어 직접 보여줘요~
이런부분이 마음에 들어 쎈수학으로 결정했는데 참 좋은 교재인것 같아요
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