Reflection: ELL Students Evolution - Homologous Structures & Embryology - Section 2: Explore


Language plays a key component in science instruction. It is imperative that students not only learn the content vocabulary, but that they are also able to express their ideas. As students develop their scientific thinking, they often need sentence frames as a scaffold to be able to communicate their understanding. This is true not only of ELL students, but of all students, since the content vocabulary and sentence structure does not come naturally.

When looking at this lesson, I knew that students would probably be able to see the similarities and differences in bone structures, however they might need support in being able to express them. They were going to be confronted with new vocabulary, and they had to be able to use it. This is why I decided that sentence frames were going to help bridge the gap between the vocabulary and the expression of ideas. 

Although traditionally sentence frames are used to "jump-start" writing, we have to remember that speaking comes before writing. Providing students with sentence frames even for oral discussions then makes sense as a way to bridge the gap between verbal and written communication. Although the students might not use the specific sentence frames provided when speaking, they do provide them with a structure to follow. They allow students to incorporate strong academic language structures into their natural vocabulary and help deepen the level of the discussion.



  Using sentence frames during discussions
  ELL Students: Using sentence frames during discussions
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Evolution - Homologous Structures & Embryology

Unit 8: Evolution
Lesson 11 of 17

Objective: Students will be able to identify similarities is morphology and early embryo development as evidence for evolution

Big Idea: Things are not always as they seem.

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