how a single subject will look like.

single_subject.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <LinearLayout
        android:orientation="vertical"
        android:background="#FFFFFF"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="15dp">

        <TextView
            android:id="@+id/tvSubjectName"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="8dp"
            android:textSize="18sp"
            android:textColor="#000000" />

        <android.support.v7.widget.RecyclerView
            android:id="@+id/rvChapters"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    </LinearLayout>

</LinearLayout>