他指着地图上的一个小岛说想去那里。

Tā zhǐ zhe dìtú shàng de yīge xiǎo dǎo shuō xiǎng qù nàlǐ.

He pointed at a small island on the map and said he wanted to go there.

这里的"家"指的是家庭的意思。

Zhèlǐ de "jiā" zhǐ de shì jiātíng de yìsi.

The word "jiā" here refers to the meaning of family.

老师指着黑板上的字让我们跟着读。

Lǎoshī zhǐ zhe hēibǎn shàng de zì ràng wǒmen gēn zhe dú.

The teacher pointed at the characters on the blackboard and had us read along.