You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <pageswithprop gpwpcontinue="21" />
  </query-continue>
  <query>
    <pages>
      <page pageid="8" ns="0" title="Micro-Teaching" contentmodel="wikitext" pagelanguage="de-ch" touched="2019-02-12T17:50:22Z" lastrevid="7052" counter="38977" length="4025" />
      <page pageid="10" ns="0" title="Glaubwürdigkeit der Lehrperson" contentmodel="wikitext" pagelanguage="de-ch" touched="2019-02-27T21:40:55Z" lastrevid="7098" counter="5097" length="140" />
      <page pageid="11" ns="0" title="Klarheit der Lehrperson" contentmodel="wikitext" pagelanguage="de-ch" touched="2019-02-27T21:33:55Z" lastrevid="7095" counter="26095" length="133" />
      <page pageid="12" ns="0" title="Klassendiskussion" contentmodel="wikitext" pagelanguage="de-ch" touched="2016-01-25T11:04:11Z" lastrevid="6162" counter="3394" length="1787" />
      <page pageid="13" ns="0" title="Kognitive Entwicklungsstufe (nach Piaget)" contentmodel="wikitext" pagelanguage="de-ch" touched="2018-11-28T15:49:05Z" lastrevid="6675" counter="7876" length="2581" />
      <page pageid="14" ns="0" title="Lehrer-Schüler-Beziehung" contentmodel="wikitext" pagelanguage="de-ch" touched="2019-02-24T13:32:06Z" lastrevid="7071" counter="60088" length="6535" />
      <page pageid="15" ns="0" title="Vorausgehendes Leistungsniveau" contentmodel="wikitext" pagelanguage="de-ch" touched="2018-11-29T17:42:08Z" lastrevid="6688" counter="3666" length="1524" />
      <page pageid="16" ns="0" title="Wiederholendes Lesen" contentmodel="wikitext" pagelanguage="de-ch" touched="2019-02-01T07:11:21Z" lastrevid="6981" counter="4347" length="1034" />
      <page pageid="17" ns="0" title="Concept Mapping" contentmodel="wikitext" pagelanguage="de-ch" touched="2018-12-07T15:52:28Z" lastrevid="6717" counter="16038" length="4337" />
      <page pageid="18" ns="0" title="Meta-kognitive Strategien" contentmodel="wikitext" pagelanguage="de-ch" touched="2018-11-20T08:18:56Z" lastrevid="6620" counter="37278" length="6082" />
    </pages>
  </query>
</api>