一年级数学现在开始在学习平面图形，我们学习了正方形，长方形，三角形，圆

The first grade mathematics is now learning plane graphics. We have learned squares, rectangles, triangles, circles, and parallelograms. I remember when I was teaching three-dimensional graphics last semester, you taught them flat graphics. If they forget, you can teach them again, as a review. Of course, you can also teach them three-dimensional figures, such as: cube, cuboid, cylinder, circle.

First-year math is now starting to learn flat graphics, and we've learned squares, rectangles, triangles, circles, parallelographs. I remember when I was teaching stereoscopic graphics last semester, you taught them flat graphics. If they forget, you can teach them again and use it as a review. Of course you can also teach them three-dimensional graphics, such as: square, box, cylinder, circle.

First grade mathematics now began to learn plane graphics, we learned square, rectangle, triangle, circle, parallelogram. I remember last semester when I was teaching three-dimensional graphics, you taught them plane graphics. If they forget, you can teach them again, it can be used as a review. Of course, you can also teach them three-dimensional graphics, such as: cube, cuboid, cylinder, circle.<br>