This is a powerpoint to practice advanced adjective agreement in French. This is more than just "e/s/es" endings. It has the irregular changes like "eux" endings, "er" endings, etc.
The powerpoint has a prompt of saying "il est", "elle est", "ils sont" or "elles sont" (adjective). Then there is another sentence with one of the four again, this time with the adjective removed. Students must fill in the blank properly. Upon click, the correct answer is shown. This works great as a whiteboard assignment.