Max Maths, Year 2, Learn together, Addition within 100 with regrouping (1)

In the Max Maths Year 2 curriculum, students delve into the concept of addition within 100 with regrouping, an essential skill for young learners to develop their numeracy. The 'Learn together' section introduces a practical scenario to make the learning process engaging: counting the total number of balls in a school gymnasium. With 25 footballs and 36 basketballs present, students are prompted to find the sum of these two quantities. This exercise not only helps students practice addition but also introduces the concept of regrouping, a foundational element of place value and arithmetic.

The lesson simplifies the process of regrouping by visualizing it as combining loose balls into a box of ten, making it easier for students to understand. By regrouping 10 ones into a ten, students realize that 6 tens (from the 60 in 36 basketballs) plus 1 ten (from regrouping the 5 in 25 footballs and the 6 in 36 basketballs) results in a total of 61 balls. This step-by-step approach demystifies the process of carrying over in addition, showing that 6 tens and 1 one together make 61. The lesson concludes with the clear and satisfying outcome that there are 61 balls in the gymnasium altogether, reinforcing the students' ability to add within 100 with regrouping.