I am currently engaged in a project to collect and review some key resources on effective K-12 science instruction. My colleagues and I are digging into the following resources as a starting point. We are aware that this is not a comprehensive list but I thought I would share these resources and also ask for your help:
What key resources on effective science instruction are we missing?
What resource/strategy have you used that has shown evidence to increase student learning in science?
Books
Designing Effective Science Instruction: What Works in Science Classrooms
How People Learn: Bridging Research & Practice
Reports/Executive Summaries:
Effective Science Instruction: What does research tell us?
Taking Science to School: Learning and Teaching Science in Grades K-8 – Executive Summary
Classroom Observation Tools
Science Classroom Observation Guide
Science for All 
With regard to your project to collect and review some key resources on effective K-12 science instruction, I would appreciate your giving Sylvan Dell a hard look.
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Here are the key points:
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All the best, Lee