I would conference with the teacher and make her aware that you are aware of this practice. If she is simply copying lessons, she can not being using her class data to drive instruction. Is she copying the theme or all activities and assessments as well? If nothing is changed to reflect student interest, strengths, or weakness, maybe she would do well with some professional development.I would try to get to the root of the issue so that she can be a more effective teacher for her students.

Sounds like not only is she not using best practices such as the backward design to drive her instruction; there is also a lack of team planning going on. I suggest gathering as a team at least once a week. The grade chair should prior to meeting send out a "short and sweet" agenda. Four bullets set the tone. Have one of the non-negotiable at each team meeting state that each team member brings a resource, activity, center, or idea that is standard based to the meetings to share with team. Have the expectations set up so that using at least one of the resources brought to the meeting is utilized in the up coming weeks plans.

If she is teaching the same grade and subject then could you meet with her and see if you can alternate who writes the lesson plans? For example, she can write the plans for this month and you will write them the next month. Just by making that suggestion she may realize that you are on to her. Our teams work together to write the lessons for the class and then each teacher makes the necessary changes based on their students individual needs. Hope this helps.

I would schedule a meeting with this teacher to discuss the importance of creating lesson plans that will effectively teach students. I would also offer this teacher some help with creating a lesson plan in order to show her the necessary process and time needed to create a beneficial lesson plan.

First and foremost, the teacher should speak to that individual as quickly as possible, and let him or her know she is aware of issue that is happening. Also, she should offer advice on how to build lesson plans.

There are department teams that share a curriculum with their other team members. I would not accuse them of doing this without the other teacher's permission. I would not gossip with other teachers either about this topic. You are not a detective in the situation, and it is not a good idea to accuse her of something if you do not know the entire situation. If two teachers are sending in the same lesson plans to their principal then they will handle it. I under the difficult situation you may be in but I would not make too big of a deal of this.

If there is an impact on the students, the administration will eventually see it. Talk to her about her lack of effort and tell her that is isn't right. Be up front and forward. But is there a policy against using other teachers' lesson plans? If they are on the google drive, isn't that what they are there for?

This is sensitive information and needs to be dealt with privately. I would first speak with the teacher and have a meeting about the concerns overall. I would also make sure to bring up this information to your school admin if necessary. It is not okay to take someone else's work and stick your name on it but keep the content the same.

I think a conference with the teacher about the importance of planning for her students would be a good start here.