There are different names for different disorders. For example, a person who has difficulty reading may have dyslexia. Someone who has trouble with mathematics may have dyscalculia.

Learning disabilities may help explain why some students do not perform as well in school as intelligence tests suggest they should.

People with a learning disability may have trouble following directions. Or they may not know how to start a task. Children who have problems connecting letters with sounds or understanding what they read may be showing signs of learning disabilities.
But since these are a group of disorders, there is no one single sign to look for.

Experts say learning disabilities cannot be cured. But people can learn ways to deal with their disorders. Teachers and parents can provide support that will help students learn successfully.

In the next few weeks, we will discuss different learning disabilities as well as other disorders that interfere with learning. We will provide advice from experts about ways to deal with them. And we will examine some of the political issues raised by special education programs.

参考译文：

不同（学习）障碍称法不同。例如，一个人如果阅读困难可能患有失读症。另一些人，他们在处理数学问题上存在障碍，则可能患有计算困难。

学习障碍也许可以解释为什么有些学生不能表现的和他们在学校智力测试中所预测的程度一样好。

学习障碍患者可能在听从指令方面存在麻烦。或者他们不知道怎样开始一项工作。那些无法根据声音拼出单词或无法理解所读内容的孩子，可能正表现了一些学习障碍的症状。

但是，由于这是一组紊乱性疾病，并不能只寻找单一症状。

专家说学习障碍是无法治愈的。但是人们可以学习如何处理他们的紊乱。老师和父母可以提供支持，这将帮助学生成功的学习。

未来几周，我们将讨论不同的学习障碍以及其他影响学习的紊乱性疾病。我们将提供专家关于对付这些紊乱的方法的建议，并且我们将调查由于特殊教育方案而引起的一些政治问题。