Stepping Stone Arithmetic Mathematics Elementary School 1st Grade Set

Description

2A-1
1. (several tens several)+(several tens several) with one carryover
2. (several tens several)+(several tens several) with two roundings
3. With acceptance (several tens several)-(several tens several)
4. Calculation of three numbers with rounding down and rounding down

2A-2
1. Multiplication Basics
2. Single multiplication table of 2, 5, 3, 4
3. Single multiplication table of 6, 7, 8, 9
4. Multiplication phrase synthesis 6. (several dozen)-(several) with acceptance

2B-1
1. (three digit number) + (three digit number) without rounding
2. (three-digit number)+(three-digit number) with one rounding
3. (three-digit number) + (three-digit number) with two roundings
4. (three-digit number) + (three-digit number) with three roundings

2B-2
1. (three-digit number) without regrouping-(three-digit number)
2. (three-digit number) with one reordering - (three-digit number)
3. (three-digit number) with two recursives - (three-digit number)
4. (four-digit number)+(three/four-digit number) with rounding
5. (four-digit number) with regrouping-(three/four-digit number)
6. Calculation of three numbers with rounding down and rounding down

1. Solving 100 problems with your head improves your math skills rather than solving 10 problems with your hands.
Learning calculation methods alone can develop 'calculation skills', but it does not lead to 'mathematics skills'.
Just as calculations have principles and methods, calculations have their own properties and relationships between calculations. Additionally, children must be able to use calculations and develop number sense through calculations. In this way, to enable three-dimensional calculation training rather than just a cross-section of calculations, problems that allow one to consider one calculation from various angles were created based on mathematical design.

2. To master elementary, middle, and high school math, you need to do math-based operations, not the four basic arithmetic operations.
Because mathematics is a subject that is connected to elementary, middle, and high school, the formation of concepts in elementary school also affects middle and high school learning. It is easy to take lightly the concepts learned in elementary school, but since they are connected to important concepts in middle and high school, it is essential to learn calculations that can point out their mathematical meaning.
In addition, the laws of mathematics learned in middle and high school must be experienced from the elementary school level, so that it can become the center of overall mathematics learning.

3. Math concepts remain only when you think, solve, and feel.
Calculations that only calculate from beginning to end not only bore children, but also make them bored.
You miss the mathematical meaning behind the calculations. We created a three-dimensional learning structure so that calculation training can be linked to understanding mathematical concepts by helping students understand what mathematical principles are based on it and what calculation methods are used accordingly. In addition, we have separately organized why the mathematical concepts contained in the problems are important and how they relate to middle and high school learning and included them in the correct answers.