Content objective:
What are we learning and why are we learning this? Content, procedures, or skills.
Vocabulary objective
Tier II: High frequency words used across content areas. Key to understanding directions & relationships, and for making inferences.
Tier III: Low frequency, domain specific terms.
Building on what we already know
Make connections to prior knowledge. This is where we build from.
Here we learn how cells make a copy of their DNA
Conservation of the genetic code
When cells make copies of their DNA, the copying is almost exact.
However, a small number of mistakes may occur. We call this a mutation.
Why is DNA double-stranded?
Isn’t that a waste to have a gene written twice?
It It Would Would Like Like Be Be Writing Writing Each Each Word Word Twice Twice
Cells do this because it allows copies to be made exactly & quickly.
Basic idea
Step-by-step details
Looking at the base pairing, up close
Videos
This process is mind-bogglingly fast. This video shows the amazing speed at which this takes place:
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