The document discusses three different studies related to challenges faced by teachers after the pandemic: 1) Challenges English elementary teachers face helping students adapt to in-person learning after distance learning during the pandemic in terms of writing, reading, listening and speaking skills. 2) Difficulties faced by teachers in multigrade classrooms where one teacher instructs multiple grades simultaneously. 3) Perceptions of elementary students on the learning management system Quipper and its impact on their academic performance.