Do you have any tips for the best way to structure partial views?

Views/parent.php

PHP Code:

<h1>Child: <?=$this->renderSection('child')?></h1> 


Views/child-a.php

PHP Code:

<?= $this->extend('parent') ?>

<?= $this->section('child') ?>
AAAAAAA
<?= $this->endSection() ?>

Views/child-b.php

PHP Code:

<?= $this->extend('parent') ?>

<?= $this->section('child') ?>
BBBBBBB
<?= $this->endSection() ?>

Now

PHP Code:

view('child-a') // <h1>Child: AAAAAAA</h1>
view('child-b') // <h1>Child: BBBBBBB</h1>