论文标题
当负数不小于零时：电荷作为签名数量
When negative is not "less than zero": Electric charge as a signed quantity
论文作者
论文摘要
电磁主义（E＆M）通常对参加入门级物理学课程的学生来说是具有挑战性的。与力学相比，E＆M的数学更为复杂，并且表示更为抽象。此外，学生可能缺乏武力和运动的生产直觉。在本文中，我们探讨了电荷的数学化。具体来说，我们探讨了主要将整数作为数字行的位置接近整数的学习者的困难。
Electromagnetism (E&M) is often challenging for students enrolled in introductory college-level physics courses. Compared to mechanics, the mathematics of E&M is more sophisticated and the representations are more abstract. Furthermore, students may lack productive intuitions they had with force and motion. In this article, we explore the mathematization of electric charge. Specifically, we explore how difficulties with positive and negative signs can arise for learners who approach integers primarily as positions on a number line.
