Tuesday, December 12, 5th Grade Arithmetic "Percentage and Graphs" - Through comparing the amount of harvest in different years, the students were able to explain that when the total amount is different, it cannot be compared only by the size of the apparent percentage [Manryu Elementary School].

December 11 (Monday) 2nd Grade Arithmetic "Table of 99" - "Let's Make a Table of 99! The activity of "Let's make a multiplication table of 99" led the students to notice that if you connect the numbers written on a circle with straight lines in the order of the first place of the answer to 99, you can make a regular pattern, and they became interested in the rules of 99 [Manryu Elementary School].