same columns. When we <em>merge</em> them, we’re going to <strong>suffix</strong> the ela data with <code class="docutils literal notranslate"><span class="pre">_ela</span></code> and the math data with <code class="docutils literal notranslate"><span class="pre">_math</span></code>. We will drop <code class="docutils literal notranslate"><span class="pre">school_name</span></code> from one of the data sets and use <code class="docutils literal notranslate"><span class="pre">[&quot;dbn&quot;,</span> <span