◇ Fun and Engaging Arithmetic ◇ Arithmetic that encourages hands-on thinking through manipulative activities ◇ Arithmetic where you "see" calculations using teaching aids ◇ Arithmetic where answers are confirmed through experiments This is what you'll find here. This is the "Fami-Sen" series of arithmetic, which is different from both cram schools and "school arithmetic," and is fun and engaging. Moreover, the biggest feature of the "Fami-Sen" series is that by using this text, "parents can become the teachers." The texts in this series are designed so that anyone in the family can take on the role of teacher. Just study with your child, following the text. ○ The learning content is deeper than the textbooks. Parents can teach content that is more in-depth than what is studied in school. ○ Learning games are often incorporated into the text. Through games, the whole family can enjoy learning and solidify their understanding. The learning of averages is introduced using a teaching aid called the average water tank. By removing the partition, the water surface is leveled, and the average value is found by reinserting the partition. This operation is visualized by replacing it with a simple water tank diagram, and the formula for finding the average is considered. Through examples of various cases, students will learn how to use averages appropriately in everyday life. Also, while the average is often imagined as the middle value, the text also touches on the fact that the average value is not the median, using the example of average scores. When using this, the parent should act as the teacher. The printouts are not bound. The text is not given all at once, but one page at a time. It is written so that children can read the sentences, but if they don't understand it after reading it once, have them read it again, or have the parent read it in an easy-to-understand way. However, important explanations are written on the following pages, so there is no need to add explanations. Even if the understanding is shallow at that time, the plan is designed to deepen the understanding as you read on. Please continue reading as is. Disclaimer: While using the "Fami-Sen" series of texts aims to improve your child's academic ability, it does not necessarily guarantee an improvement in academic ability. (Page 37)