Which activity would best help ELLs activate prior knowledge before starting a unit on Earth and Space?

The activity that involves showing a slideshow of different landforms and discussing observations is particularly effective for activating prior knowledge among English Language Learners (ELLs) before starting a unit on Earth and Space. This approach engages students visually and encourages them to connect their existing knowledge with new concepts.

By discussing observations from the slideshow, students can share their experiences and thoughts related to the landforms presented. This interaction promotes language use and allows ELLs to express themselves, further enhancing their vocabulary and understanding of relevant themes. The visual component helps bridge any language gaps, making it easier for students to comprehend and relate to the topic, thus setting a solid foundation for the upcoming unit.

In contrast, while filling out a quiz about rocks could provide some engagement, it may not allow for as meaningful a discussion or activation of prior knowledge. Leading a group discussion after watching a video may be valuable but relies heavily on comprehension of the video content, which might be challenging for ELLs. Reading a textbook chapter on sedimentary rocks may be too advanced and lacks interactive engagement, making it less effective for activating prior knowledge. The chosen activity best combines visual stimulation with interactive discussion, making it the most suitable choice for ELLs.