DNA by linxiaoqin

VIEWS: 2 PAGES: 3

									                    Understanding By Design 1-Page Template


Title: DNA Extraction from Peas

                            Stage 1: Desired Results
                                  Content Standards

    B.1.21 Understand and explain that the information passed from
     parents to offspring is transmitted by means of genes which are coded
     in DNA molecules

                                   Understandings
Genetic information is passed from parents to offspring through genes that are found in
our DNA, which can be extracted from various living things.



            Essential Questions                           Knowledge & Skill

What exactly does DNA look like with the     Skills
naked eye and with a microscope?                 Read and follow a lab procedure.
                                                 Do field work RESPONSIBLY.
                                                 Keep good records of data collected
                                                    using equations if necessary.
                                                 Analyze the data collected.
                                                 Draw conclusions from that data.
                                                 Collect information and put into a lab
                                                    report.
                                                 Ask questions when you need help
                                             Knowledge
                                             Introductory use of digital microscopes
                                             Basic steps of mitosis (PMAT)
                                             What does a grasshopper look like
                                             Basic DNA structure (double helix)



                        Stage 2: Assessment Evidence
The students will be graded through the performance of the lab activity, the
production of the digital photos in the lab report, behavior during the lab and
their use of technology throughout the time spent on this activity. They will
be doing other book activities as well during time. At the end of the topic of
study there will be a test discussing DNA and genetics including questions
about the lab activity.
       Performance Task Summary                             Rubric Titles
                                              Formal Lab Report Rubric for all activities
Extract and observe the DNA strands from      Behavior/On Task Rubric for all activities
pea plants                                    Use of Technology Rubric for all activities




            Self-Assessments                         Other Evidence, Summarized

Formal Lab Report Rubric for all activities   Test over DNA and genetics will include
Behavior/On Task Rubric for all activities    questions about this lab activity.
Use of Technology Rubric for all activities
                                              DNA extraction lab will include digital
                                              pictures taken of the DNA strands
                                              extracted during the lab.



                           Stage 3: Learning Activities
  LESSON SUMMARY:
  This lesson introduces DNA, genes, chromosomes, and the chemicals that
   make up DNA.
  Students will do an experiment to separate DNA from peas.

  WHERE ARE WE HEADED?
  We are headed into the topic of heredity and genetics.
  This lab will be a great introduction to the students and allow them to see
   something that they usually cannot.

  HOW WILL STUDENTS BE HOOKED?
  Students are easily hooked by lab activities where they can get messy
   and be able to work in groups.

  WHAT OPPORTUNITIES WILL STUDENTS HAVE TO BE EQUIPPED,
   AND TO EXPERIENCE AND EXPLORE KEY IDEAS?
  Throughout the lab, students will be able to ask questions, explore the
   idea that you can actually remove DNA from an organism, and know how
   that chemical stuff that makes up DNA can actually carry all of our
   genetic information.

  WHAT OPPORTUNITIES WILL BE PROVIDED TO RETHINK,
   REHEARSE, REFINE AND REVISE?
  As the students are working in groups they consistently have time to
   revise and refine their knowledge of the topic of DNA and genetics.
 Also, at the end of the lab there will be a question/answer time for the
  students to get any information clarified that they may need.

 HOW WILL STUDENTS EVALUATE THEIR WORK?
 The students can evaluate their own work via the rubrics provided for the
  DNA activities.
 They can also quiz each other and work together to prepare for the test.

								
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