Hello! I think it is essential to use different formats in a classroom. Whether it be individual work, working in groups, working with a partner, or whole class discussion. Science is a challenging subject to teach, but you should not be scared to try out science groups at all! As educators, we have to keep learning exciting. When the students work in groups, they are given the chance to learn from one another and collaborate! To satisfy your desire for small group instruction, sit with the group you are needing to teach a bit further. Talk to these students while the other students are working with their group. When dictating group work, clear instructions are essential. You may even want to write them up on the board for the class to refer back to as they work. If the students understand the project, they will not ask you a thousand questions while you are working with your small group. A simple task such as groups creating a boat out of foil and toothpicks can lead to a great lesson! Once the groups have created their boats, have a contest to see which boat could hold the most weight! Simple experiments in groups is a great idea to give you extra time to work with the students who are struggling without compromising time for the rest of the class. You can do it, go for it!