I would add something like this to slide 3 to check their knowledge.
<iframe src=”https://wordwall.net/embed/566ef3e6d995401599f0a8459a1f9f11?themeId=1&templateId=36″ width=”500″ height=”380″ frameborder=”0″ allowfullscreen=””></iframe>
I would also add this to slide 4 on the presentation.
<iframe src=”https://wordwall.net/embed/f87d492a9bb2489fb8fe9853b497c90e?themeId=1&templateId=36″ width=”500″ height=”380″ frameborder=”0″ allowfullscreen=””>
Then in slide 7 this missing word check.
<iframe src=”https://wordwall.net/embed/5a2506e45d3c4f79bc30ea20d242e14c?themeId=1&templateId=36″ width=”500″ height=”380″ frameborder=”0″ allowfullscreen></iframe>
I would put this true / false quiz on the first slide to check the student’s knowledge:
<iframe src=”https://wordwall.net/embed/a701310c47aa4cdfb3e9dad115a26a77?themeId=1&templateId=35″ width=”500″ height=”380″ frameborder=”0″ allowfullscreen=””></iframe>