1, let the children count the number of bricks in a row on the wall.
Let the children count how many rows of bricks are on the wall.
3. Multiply the numbers in the first step and the second step to get the total number of bricks on the wall.
For example, if there are 8 bricks in a row and the wall is 5 rows high, there are 40 bricks on the wall (8 x 5 = 40). This is a simple way to let the first grade children count brick walls.
Pay attention to the following points when counting brick walls:
1. Confirm calculation unit: when calculating brick walls, you need to confirm the calculation unit, such as taking the length or area of a single brick as the calculation unit. Different calculation units will affect the final result, so it needs to be determined before starting calculation.
2. Ensure accurate calculation: When calculating brick walls, ensure accurate calculation, especially on large walls. It's best to use a calculator or a pen and paper to make calculations to avoid mistakes.
3. Pay attention to the size of bricks: when counting brick walls, you need to pay attention to whether the sizes of bricks are consistent. If bricks are different in size, it may be necessary to classify and calculate different kinds of bricks.
4. Pay attention to the width of brick joints: when calculating brick walls, you need to consider the width of brick joints, because brick joints also occupy a certain space. Usually, the width of brick joint is about 2-5 mm, and the specific width depends on the operation and design requirements of construction personnel.
5. Consider the shape of the wall: When calculating the brick wall, you need to consider whether the shape of the wall is regular. If the wall presents an irregular shape, it may need to be calculated in sections to ensure the accuracy of the calculation.